regina laska mca stability booklet · pdf file · 2017-12-03category 1 under mgn...

STABILITY INFORMATION BOOKLET

“REGINA LASKA”

Category 1 under MGN 280 (M) with up to 6 persons on board

Document Ref: YPDS/RL/06062013-01

6th June 2013

Stuart M Roy, Naval Architect Yacht & Powercraft Design Services Ltd

9 Upper Spinney, Warsash, Southampton, SO31 9JW Tel. 44 (0) 1489-583346 Email. [email protected]

Approval Stamp

MCA Stability Information Booklet Regina Laska

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Contents Page No. General Particulars.…………………………………………………………………….. 2 Arrangement of Sections.………………………………………………………………. 3 Section 1: Operational Information.……………………………………………….. 4 Arrangement of Tanks and Ballast..……………………………………. 5 Sail Plan ………………………………………………………………... 6 Angles of Deck Edge Immersion and Downflooding .………………… 7 Notes on Stability for the Guidance of the Master.…………………….. 8 Maximum Steady Heel Angle to Prevent Downflooding in Gusts.……. 9

Curves of Maximum Steady Heel Angle to Prevent Downflooding in Squalls.………………………………………………………. 10

Examples Showing the Use of the Maximum Steady Heel Angle Curves 11 Section 2: Technical Data and Loading Conditions.………………………………. 12

Freeboard Marks.……………………………………………………….. 13 Tank Capacities.………………………………………………………… 13 Loading Condition 1 - Depart Port.…………….………………………. 14 Stability Curve for Condition 1………………………………………… 15 Stability Data for Condition 1………………………………………….. 15 Loading Condition 2 - Arrive Destination……….…………………….. 17

Stability Curve for Condition 2………………………………………… 18 Stability Data for Condition 2………………………………………….. 18 Section 3: Reference Information.…………………….……………………………. 20 Hydrostatic Curves & Tabulated Data ….………………..…………….. 21 KN Cross Curves & Tabulated Data……………………………………. 24 Notes on the Use of KN Cross Curves.….……………………………… 27 Inclining Experiment & Lightship Determination…………………….… 28 Tank Calibrations………………………….……………………………. 31 Notes on the Use of Free Surface Moments..…………………………… 36 Appendices: 1. Beaufort Scales of Wind Speeds and Corresponding Pressures.……. 38 2. Metric/Imperial Conversions ……………………………………….. 39 3. Calculation Software Details .……………………………………….. 40


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General Particulars Vessel’s Name: REGINA LASKA Class: Hallberg-Rassy 46 HIN Number: SE-HRM-46099L697 Official Number: TBA Port of Registry: Lerwick Owner’s Name Karolina Örn Schulz and Leon Schulz Owner’s Address: High Ridge

43, Triq F. Vidal Ibragg, SWQ 2472 Malta E-mail: [email protected] Phone: +356 272 18400 Mob: +356 999 18400

Builder: Hallberg-Rassy

S-440 80 Ellös Sweden

Date of Construction: 1997 Classification Society: Germanischer Lloyd 100 A5 Dimensions (taken from Designer’s Lines Plan):

Length Overall: 14.700 m Length BP: 11.000 m Maximum Beam: 4.350 m Depth amidships to u/s of bulwark capping 3.262 m

Displacement Fully Laden: 20867 kg Draught Fully Laden: 2.085 m Minimum Freeboard amidships to u/s capping: 1.177 m

Gross Tonnage (if registered): TBA tonnes Area of operation: MCA Category 1 Up to 150 miles from a safe haven Standard of Survivability: Intact Stability only Maximum Number of persons on board: 6 (when in commercial use)


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Arrangement of Sections This booklet is arranged in sections so that the most essential items are brought to the user’s attention first. Section 1 – Operational Information This section contains guidance intended to ensure that the level of stability may be judged with reference to a recommended maximum steady angle of heel to prevent downflooding in gusts and squalls. Section 2 – Technical Data and Loading Conditions This section shows detailed loading conditions upon which the recommended heeling angles are based. Section 3 – Reference Information This section contains basic information, which is necessary for the calculations in Sections 1 and 2. Appendices It is not necessary for the skipper to refer to this part except that the Beaufort Scale and the metric/imperial conversion table may be found to be useful.


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SECTION 1

Operational Information


5

Arrangement of Tanks and Ballast

Tankage and Ballast

Datum Positions Draughts are referred to the Baseline (USK). All other vertical locations are also referred to the Baseline. All longitudinal locations are referred to the FP, 1.594m aft Stem, positive forward, negative aft. FP is at the intersection of the bow and DWL. The DWL is parallel to the base at 1.880m above. AP is at the intersection of the underside of the hull aft and the DWL. Trim is defined as: Draught Aft – Draught Forward Design Trim = rake of keel = zero.

No. Item Amount Units 1 FW Tank 920 litres 2 Fuel Tank 660 litres 3 Hot Water Tank 40 litres 4 Sewage Holding Tank – Fwd Heads 57 litres 5 Sewage Holding Tank – Aft Heads 57 litres 6 Fixed Ballast 6.6 tonnes

1

2

3 5

4

6

1

2

5

4 3


6

Sail Plan Ref. Sail Area

(m2 ) Height of Centroid above BASE (m)

M Full Mainsail 46.209 10.586 M1 Main Reef 1 31.118 9.648 M2 Main Reef 2 19.289 8.694 M3 Main Reef 3 9.944 7.692 G Full Genoa 53.622 9.492

G1 Genoa Reef 1 33.486 8.801 G2 Genoa Reef 2 21.558 8.311 G3 Genoa Reef 3 12.186 7.834 S Staysail 20.569 8.072

SS Storm Staysail 6.591 7.305

Note: This yacht has in-mast roller furling for the mainsail and roller furling for the genoa, making the sail areas infinitely variable to suit the conditions. The Sail Plan shows typical examples of the sail sets that could be used.


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Angles of Deck Edge Immersion and Downflooding

No. DESCRIPTION AREA OF CLEAR

OPENING

ANGLES OF IMMERSION (deg.)

ANGLES OF IMMERSION (deg.)

cm2 100% Consumables 10% Consumables 1 Deck Edge

at 6.593m aft FP - 31.1 32.4

2 Companionway Hatch Forward Edge

3000 109.0 * 111.7

3 Companionway Door Bottom of Sill

3000 123.9 128.3

4 Engine Air Intakes 10.5 N/A N/A Critical downflooding is deemed to occur when the lower edges of openings having an aggregate area (in m2) greater than: displacement (in tonnes) /1500 are immersed. i.e. departure 20.867/1500 = 0.0139 m2 = 139 cm2

arrival 19.474/1500 = 0.0129 m2 = 129 cm2

Thus item 4 in the list above is not regarded as critical and it is the immersion of the Companionway Hatch Forward Top Edge (item 2 above * ) which defines the critical downflooding angles referred to in this booklet. The master should note that the presence of the vents as listed above significantly reduces the ability of this vessel to withstand downflooding and with these openings securely closed the safety of the vessel is enhanced considerably. While the engine air inlet needs to remain open, any extractor vents from the galley, accommodation and the heads compartments should be closed at sea, except in the most settled conditions. Also please note: All opening portlights and hatches should be closed and locked at sea.


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Notes on Stability for the Guidance of the Master 1. The stability characteristics of this vessel qualify it for operation in Category 1 with up

to 6 persons on board. This category is defined as Up to 150 miles from a Safe Haven.

2. Compliance with the stability criteria indicated in this booklet does not ensure immunity

against capsizing regardless of the circumstances or absolve the master from his responsibilities. Masters should therefore exercise prudence and good seamanship having regard to the season of the year, experience of the crew, weather forecasts and navigational zone, and should take appropriate action as to the speed, course and sail setting warranted by the prevailing conditions.

3. Before a voyage commences care should be taken to ensure that sizeable items of

equipment have been properly stowed to minimize the possibility of both longitudinal and transverse shifting under the effect of accelerations caused by pitching and rolling, or in the event of a knockdown to 90 degrees.

4. In adverse weather conditions and when there is the possibility of encountering a severe

gust, squall or large breaking wave, all exposed doors, hatches, skylights, vents, etc. should be closed and securely fastened to prevent the ingress of water. Storm boards etc. should be erected and fitted.

5. The amount of sail carried is at the discretion of the Master and his decision will have to

take into account many factors. In assessing the risks of downflooding, the Master should be guided by Figures 1 and 2.

6. a) Figure 1 shows the maximum recommended steady heel angle to prevent

downflooding in gusts. Operation of the vessel at a greater heel angle would result in downflooding if it were to encounter the strongest possible gust in the prevailing turbulent airstream, which could exert a heeling moment equal to twice that of the mean wind.

b) Figure 2 shows the maximum recommended steady heel angle to prevent

downflooding in squalls. Operation of the vessel at a greater heel angle would result in downflooding if it were to encounter the heeling effects of a squall arising from a storm cell or frontal system which may result in a heeling moment many times greater than that of the mean wind. For this reason the Master should have regard to the maximum steady heel angle curves presented for a range of squall speeds.

7. By using the readings from his inclinometer and anemometer a Master is able to

determine the degree of risk of capsize in gusts or squalls which may occur in the prevailing weather system. He may then decide to shorten sail together with other actions he considers necessary.

8. Additional care should be taken when sailing with the wind from astern as, in the event

of the vessel broaching or a gust striking the vessel on the beam, the heeling effects of the wind may be increased to a dangerous level when the preceding heel angle was small.


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Maximum Steady Heel Angle to Prevent Downflooding in Gusts

-0.3

0

0.3

0.6

0.9

1.2

1.5

0 25 50 75 100 125 150 175

Max GZ = 0.722 m at 76.4 deg.

Hatch Fwd Top S = 109 deg.

11.8.3 Angle of equilibrium - derived wind heeling arm (steady)

11.8.3 Angle of equilibrium - derived wind heeling arm (gust)

Heel to Starboard deg.

GZ m

Figure 1 GUSTING CONDITIONS When sailing in a steady wind the vessel heels to the angle at which the heeling arm curve intersects the GZ curve. When struck by a gust the heel angle will increase to the intersection of the gust heeling arm curve with the GZ curve. The heeling moment increases in proportion to the square of the apparent wind speed. Operation of the vessel at a mean heel angle not greater than 39.5 degrees ensures significant downflooding openings would not be immersed if it were to encounter the strongest gust in the prevailing turbulent airstream which could exert a heeling moment equal to twice that of the mean wind. i.e. mean apparent wind has increased in velocity by 1.4. Note: The 100% consumables (Departure) condition is shown above, as it is the slightly more onerous one.

Maximum recommended steady heel angle 39.5 degrees

GZf


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Curves of Maximum Steady Heel Angle to Prevent Downflooding in Squalls Figure 2

SQUALL CONDITIONS Curves of maximum steady heel angle indicate the range of mean or steady heel angles beyond which the vessel will suffer downflooding in the event of a squall. Operation of the vessel in cyclonic conditions particularly in the hours of darkness, where severe squalls are imminent requires the recommended maximum steady heel angle to be reduced depending on the mean apparent wind speed in accordance with the curves presented above.


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Examples showing the use of the Maximum Steady Heel Angle Curves

Example A The yacht is reaching, with a steady apparent wind speed of 13 knots. The mean heel angle is 15 degrees. Forecasts and visible cumulo-nimbus clouds suggest squalls may be imminent. By plotting the heel angle and wind speed (point A in diagram above) the indication is that the vessel will be in danger of heeling to the downflooding angle in squalls of 30 knots. In order to increase safety from downflooding, say, to withstand squalls of up to 45 knots, sails should be handed or reefed to reduce the mean heel angle to 6.4 degrees (point A’ above) or less. Example B The yacht is beating in gusty conditions with a mean apparent wind speed of 27 knots. The mean heel angle is 20 degrees. No squalls are expected. The heel angle is significantly less than 39.5 degrees, the maximum recommended steady heel angle, and there is therefore a good safety margin against downflooding in a strong gust. Plotting these values of wind speed and heel angle (point B above) also indicates that the vessel would not be vulnerable to downflooding in a squall unless it resulted in a wind speed in excess of about 50 knots. There is thus no need to reduce sail area on the grounds of stability.


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SECTION 2

Technical Data and Loading Conditions


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Freeboard Mark Depth from underside of keel to top of main deck amidships (LBP/2) 3.262 m Maximum fully laden draught amidships (LBP/2) 2.085 m Minimum freeboard amidships (LBP/2) 1.177 m A Freeboard Mark, with dimensions 300*25 mm, is on the side of the hull at amidships, with the top of the mark at 1.177m below the underside of the teak capping, as shown in the following diagram:

Tank Capacities For locations, see diagram on page 5. For calibration tables see Section 3. No. TANK Capacity

m3 Weight

kg LCG from Stem (m)

VCG above BASE (m)

Max. FSM kg.m

1 FW Tank 0.923 922.6 -4.949 1.262 708.8 2 Fuel Tank 0.664 558.0 -6.127 1.240 403.3 3 Hot Water Tank 0.040 40.0 -8.171 1.716 0.897 4 Sewage Holding

Tank – Fwd Heads 0.057 57.0 -2.687 2.386 1.929

5 Sewage Holding Tank – Aft Heads

0.057 57.0 -8.901 2.175 1.929


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Condition 1 - Depart Port, 100% Consumables Damage Case - Intact Free to Trim Specific Gravity = 1.025 Fluid analysis method: Use corrected VCG Item Name Quantity Unit Mass

kg Total Mass

kg Long. Arm

m Trans. Arm

m Vert. Arm

m Total FSM

kg.m FSM Type

.Fixed Items Complete Yacht - Unladen 1 11805.1 11805.1 -6.008 0.000 2.786 0.000 User Specified Lead Ballast 100% 6598.9 6598.9 -5.617 0.000 0.398 0.000 User Specified Total Fixed Items 18404.0 -5.868 0.000 1.930 0.000 . .Tankage Fuel Tank 96% 558.0 535.7 -6.126 0.000 1.230 403.309 Maximum FW Tank 96% 922.6 885.7 -4.949 0.000 1.253 708.763 Maximum Hot Water Tank 100% 40.0 40.0 -8.171 0.908 1.716 0.000 Maximum Fwd Sewage Tank 10% 56.2 5.6 -2.687 0.998 2.211 1.929 Maximum Aft Sewage Tank 10% 56.2 5.6 -8.901 1.102 2.000 1.919 Maximum Total Tanks 90.18% 1633.1 1472.7 -5.472 0.033 1.264 1115.921 . .Load Items when on Charter Skipper and Crew 6 75.0 450.0 -8.367 0.000 3.500 0.000 User Specified Personal Luggage 6 25.0 150.0 -5.500 0.000 1.900 0.000 User Specified Stores 6 20.0 120.0 -5.500 0.000 1.900 0.000 User Specified Bottled Drinks 6 20.0 120.0 -5.500 0.000 1.800 0.000 User Specified Dinghy 1 50.0 50.0 -13.553 0.000 3.750 0.000 User Specified Additional Gear 1 100.0 100.0 -6.000 0.000 1.800 0.000 User Specified Total Load Items 990.0 -7.260 0.000 2.698 0.000 . Total Loadcase 20866.7 -5.906 0.002 1.919 1115.921 FS correction 0.053 VCG fluid 1.973

Draught Aft 2.096 m Draught Forward 2.074 m Mean Draught 2.085 m Trim 0.022 m by the stern GM Solid 1.060 m GM Fluid 1.007 m N.B. As the tank volumes are not symmetrical about the centreline of the vessel (due to the hot water and sewage tanks on the starboard side) there is a small difference between the port and starboard stability characteristics. As heeling to starboard gives the most onerous situation, the Loading Conditions presented in this booklet are for the vessel heeled to STARBOARD.


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Stability Curve for Condition 1

-0.3

0

0.3

0.6

0.9

1.2

1.5

0 25 50 75 100 125 150 175

Max GZ = 0.722 m at 76.4 deg.

Hatch Fwd Top S = 109 deg.




GZ m

Range of stability 134.2 degrees (Required: > 122.8 degrees) Critical downflooding angle 109.0 degrees (Required: > 60 degrees) Maximum recommended steady heel angle 39.5 degrees (Required: > 15 degrees) Stability Data for Condition 1 Heel to Starboard (deg) -5.0 0.0 5.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 GZ m -0.090 -0.002 0.085 0.172 0.339 0.495 0.625 0.689 0.704 0.713 0.715 0.625 Area under GZ curve m.rad 0.0040 0.0000 0.0036 0.0149 0.0596 0.1327 0.2311 0.3467 0.4687 0.5922 0.7177 0.8357 Displacement kg 20867 20867 20867 20867 20867 20867 20865 20865 20865 20867 20866 20867 Draft at FP m 2.072 2.074 2.073 2.069 2.052 2.014 1.944 1.844 1.686 1.386 0.498 n/a Draft at AP m 2.090 2.096 2.090 2.072 1.999 1.861 1.650 1.357 0.890 -0.018 -2.662 n/a Trim (+ve by stern) m 0.018 0.022 0.017 0.004 -0.053 -0.152 -0.294 -0.487 -0.796 -1.404 -3.161 n/a WL Length m 11.947 11.959 11.946 11.960 12.003 11.982 11.956 12.004 12.077 12.561 13.239 13.757 Beam max extents on WL m 3.878 3.884 3.878 3.863 3.812 3.768 3.322 2.967 2.967 3.914 3.752 2.627 Wetted Area m^2 48.758 48.754 48.756 48.767 48.767 48.813 49.283 49.572 49.463 47.151 43.250 44.151 Waterpl. Area m^2 31.531 31.525 31.529 31.546 31.658 32.112 30.902 29.019 28.191 29.957 26.790 25.153 Prismatic coeff. (Cp) 0.515 0.514 0.515 0.515 0.513 0.513 0.516 0.523 0.528 0.525 0.535 0.525 Block coeff. (Cb) 0.211 0.210 0.211 0.213 0.228 0.256 0.344 0.472 0.449 0.313 0.293 0.374 LCB from zero pt. (+ve fwd) m -5.907 -5.906 -5.906 -5.906 -5.904 -5.900 -5.895 -5.887 -5.877 -5.865 -5.853 -5.845 LCF from zero pt. (+ve fwd) m -6.198 -6.200 -6.197 -6.191 -6.161 -6.121 -6.053 -5.967 -5.894 -5.805 -5.749 -5.656 Max deck inclination deg 5.0008 0.1127 5.0008 10.0000 20.0016 30.0071 40.0143 50.0194 60.0216 70.0198 80.0126 90.0000 Trim angle (+ve by stern) deg 0.0918 0.1127 0.0892 0.0183 -0.2753 -0.7922 -1.5323 -2.5343 -4.1364 -7.2734 -16.030 -90.000 Stability Data for heel angles 100 – 180 degrees follow on next page:

Max. Recommended Steady Heel Angle


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Heel to Starboard (deg) 100.0 110.0 120.0 130.0 140.0 150.0 160.0 170.0 180.0 GZ m 0.502 0.361 0.210 0.061 -0.073 -0.172 -0.204 -0.172 0.002 Area under GZ curve from zero heel m.rad 0.9343 1.0098 1.0597 1.0832 1.0819 1.0596 1.0260 0.9915 0.9752 Displacement kg 20867 20867 20866 20866 20865 20867 20867 20867 20867 Draft at FP m -4.491 -3.546 -3.248 -3.112 -3.042 -3.007 -2.987 -2.981 -2.984 Draft at AP m -7.767 -5.073 -4.149 -3.668 -3.373 -3.182 -3.076 -3.014 -3.011 Trim (+ve by stern) m -3.276 -1.527 -0.901 -0.557 -0.331 -0.175 -0.090 -0.033 -0.027 WL Length m 14.164 14.195 13.991 13.868 13.808 13.764 13.706 13.671 13.659 Beam max extents on WL m 2.579 2.595 2.679 2.828 3.055 3.397 3.606 3.821 4.322 Wetted Area m^2 44.754 45.225 45.849 46.773 47.961 49.939 53.585 57.233 59.838 Waterpl. Area m^2 24.453 24.500 25.067 25.949 27.680 30.524 34.316 38.804 42.081 Prismatic coeff. (Cp) 0.519 0.527 0.545 0.561 0.573 0.582 0.592 0.613 0.621 Block coeff. (Cb) 0.347 0.336 0.334 0.336 0.344 0.363 0.392 0.435 0.467 LCB from zero pt. (+ve fwd) m -5.841 -5.843 -5.849 -5.860 -5.874 -5.886 -5.895 -5.902 -5.903 LCF from zero pt. (+ve fwd) m -5.602 -5.606 -5.644 -5.692 -5.771 -5.927 -6.147 -6.301 -6.447 Max deck inclination deg 99.9865 109.9765 119.9723 129.9746 139.9819 149.9906 159.9954 169.9985 179.8593 Trim angle (+ve by stern) deg -16.5851 -7.9045 -4.6848 -2.8978 -1.7234 -0.9130 -0.4675 -0.1744 -0.1407

Key Points Key point Type Immersion angle

deg Emergence angle

deg Margin Line (immersion pos = -6.593 m) 29.1 n/a Deck Edge (immersion pos = -6.593 m) 31.1 n/a Hatch Fwd Top S Downflooding point 109.0 0 Hatch Fwd Top P Downflooding point 132.9 0 Companionway Sill S Downflooding point 123.9 0 Companionway Sill P Downflooding point 154.9 0


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Condition 2 - Arrive Destination, 10% Consumables Damage Case - Intact Free to Trim Specific Gravity = 1.025 Fluid analysis method: Use corrected VCG

Item Name Quantity Unit Mass kg

Total Mass kg

Long. Arm m

Trans. Arm m

Vert. Arm m

Total FSM kg.m

FSM Type

.Fixed Items Complete Yacht - Unladen 1 11805.1 11805.1 -6.008 0.000 2.786 0.000 User Specified Lead Ballast 100% 6598.9 6598.9 -5.617 0.000 0.398 0.000 Maximum Total Fixed Items 18404.0 -5.868 0.000 1.930 0.000 . .Tankage Fuel Tank 10% 558.0 55.8 -6.126 0.000 0.864 9.883 Actual FW Tank 10% 922.6 92.3 -5.032 0.000 0.976 66.175 Actual Hot Water Tank 100% 40.0 40.0 -8.171 0.908 1.716 0.000 Actual Fwd Sewage Tank 96% 56.2 54.0 -2.687 0.998 2.378 1.929 Actual Aft Sewage Tank 96% 56.2 53.9 -8.901 1.102 2.167 1.919 Actual Total Tanks 18.13% 1633.1 296.0 -5.940 0.506 1.528 79.906 . .Load Items when on Charter Skipper and Crew 6 75.0 450.0 -8.367 0.000 3.500 0.000 User Specified Personal Luggage 6 25.0 150.0 -5.500 0.000 1.900 0.000 User Specified Stores 0.6 20.0 12.0 -5.500 0.000 1.900 0.000 User Specified Bottled Drinks 0.6 20.0 12.0 -5.500 0.000 1.800 0.000 User Specified Dinghy 1 50.0 50.0 -13.553 0.000 3.750 0.000 User Specified Additional Gear 1 100.0 100.0 -6.000 0.000 1.800 0.000 User Specified Total Load Items 774.0 -7.752 0.000 2.935 0.000 . Total Loadcase 19474.0 -5.944 0.008 1.963 79.906 FS correction 0.004 VCG fluid 1.968

Draught Aft 2.076 m Draught Forward 1.999 m Mean Draught 2.037 m Trim 0.077 m by the stern GM Solid 1.017 m GM Fluid 1.013 m


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Stability Curve for Condition 2

-0.3

0

0.3

0.6

0.9

1.2

1.5

0 25 50 75 100 125 150 175

Max GZ = 0.739 m at 74.5 deg.

Hatch Fwd Top S = 111.7 deg.




GZ m

Range of stability 133.4 degrees (Required: > 122.8 degrees) Critical downflooding angle 111.7 degrees (Required: > 60 degrees) Maximum recommended steady heel angle 39.9 degrees (Required: > 15 degrees) Stability Data for Condition 2 Heel to Starboard (deg) -5.0 0.0 5.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 GZ m -0.096 -0.008 0.081 0.168 0.335 0.490 0.625 0.697 0.714 0.734 0.727 0.635 Area under GZ curve m.rad 0.0045 -0.000 0.0032 0.0140 0.0580 0.1302 0.2281 0.3444 0.4679 0.5941 0.7226 0.8423 Displacement kg 19474 19474 19474 19474 19474 19474 19474 19472 19472 19474 19473 19474 Draft at FP m 1.997 1.999 1.998 1.993 1.974 1.933 1.856 1.739 1.551 1.206 0.116 n/a Draft at AP m 2.070 2.076 2.070 2.052 1.977 1.836 1.617 1.310 0.824 -0.110 -2.881 n/a Trim (+ve by stern) m 0.073 0.077 0.073 0.059 0.002 -0.097 -0.238 -0.429 -0.727 -1.316 -2.997 n/a WL Length m 11.796 11.810 11.795 11.816 11.844 11.814 11.758 11.731 11.773 12.345 13.025 13.541 Beam max extents on WL m 3.836 3.842 3.836 3.818 3.756 3.710 3.342 2.979 2.976 3.920 2.719 2.605 Wetted Area m^2 47.418 47.415 47.417 47.413 47.342 47.326 47.611 47.746 47.499 44.769 41.436 42.180 Waterpl. Area m^2 30.766 30.763 30.765 30.769 30.836 31.217 30.405 28.535 27.484 29.425 26.031 24.677 Prismatic coeff. (Cp) 0.514 0.513 0.514 0.513 0.512 0.511 0.513 0.522 0.530 0.529 0.534 0.524 Block coeff. (Cb) 0.205 0.204 0.205 0.208 0.224 0.253 0.335 0.467 0.446 0.307 0.398 0.370 LCB from zero pt. (+ve fwd) m -5.946 -5.946 -5.946 -5.946 -5.944 -5.940 -5.935 -5.927 -5.917 -5.905 -5.893 -5.883 LCF from zero pt. (+ve fwd) m -6.205 -6.207 -6.205 -6.198 -6.172 -6.139 -6.079 -5.991 -5.927 -5.842 -5.799 -5.735 Max deck inclination deg 5.0143 0.4017 5.0141 10.0045 20.0000 30.0029 40.0094 50.0151 60.0180 70.0174 80.0113 90.0000 Trim angle (+ve by stern) deg 0.3801 0.4017 0.3782 0.3070 0.0117 -0.5036 -1.2418 -2.2312 -3.7799 -6.8197 -15.238 -90.000 Stability Data for heel angles 100 – 180 degrees follow on next page:

Max. Recommended Steady Heel Angle


19

Heel to Starboard (deg) 100.0 110.0 120.0 130.0 140.0 150.0 160.0 170.0 180.0 GZ m 0.509 0.364 0.209 0.056 -0.083 -0.187 -0.219 -0.184 0.008 Area under GZ curve from zero heel m.rad 0.9425 1.0189 1.0689 1.0918 1.0892 1.0647 1.0285 0.9915 0.9745 Displacement kg 19474 19474 19473 19474 19473 19474 19476 19474 19474 Draft at FP m -4.880 -3.743 -3.381 -3.213 -3.123 -3.075 -3.048 -3.035 -3.037 Draft at AP m -8.030 -5.207 -4.237 -3.733 -3.423 -3.220 -3.104 -3.036 -3.029 Trim (+ve by stern) m -3.149 -1.464 -0.856 -0.521 -0.299 -0.144 -0.056 -0.001 0.008 WL Length m 14.012 14.179 14.089 13.932 13.855 13.804 13.746 13.708 13.698 Beam max extents on WL m 2.553 2.567 2.645 2.784 2.998 3.329 3.605 3.687 4.329 Wetted Area m^2 42.921 43.457 44.089 45.002 46.217 48.006 51.732 55.293 58.730 Waterpl. Area m^2 23.808 23.868 24.489 25.447 27.121 29.836 33.828 38.002 42.325 Prismatic coeff. (Cp) 0.516 0.520 0.534 0.552 0.566 0.576 0.584 0.603 0.614 Block coeff. (Cb) 0.343 0.328 0.325 0.328 0.338 0.359 0.379 0.436 0.455 LCB from zero pt. (+ve fwd) m -5.880 -5.882 -5.889 -5.900 -5.914 -5.928 -5.937 -5.944 -5.945 LCF from zero pt. (+ve fwd) m -5.662 -5.648 -5.671 -5.712 -5.777 -5.900 -6.131 -6.262 -6.431 Max deck inclination deg 99.9875 109.9784 119.9750 129.9778 139.9852 149.9936 159.9982 170.0000 179.9559 Trim angle (+ve by stern) deg -15.975 -7.5815 -4.4504 -2.7094 -1.5595 -0.7508 -0.2924 -0.0061 0.0441

Key Points Key point Type Immersion angle

deg Emergence angle

deg Margin Line (immersion pos = -6.739 m) 30.3 n/a Deck Edge (immersion pos = -6.593 m) 32.4 n/a Hatch Fwd Top S Downflooding point 111.7 0 Hatch Fwd Top P Downflooding point 135.1 0 Companionway Sill S Downflooding point 128.3 0 Companionway Sill P Downflooding point 157.9 0


20

SECTION 3

Reference Information


21

Hydrostatic Curves & Data S.G. = 1.025 K is at under side of keel amidships. Draught is to underside of keel amidships. 1. Level Trim: Fixed Trim = 0 m (+ve by stern)

1.98

2.01

2.04

2.07

2.1

2.13

2.16

2.19

13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000

-6.3 -6.25 -6.2 -6.15 -6.1 -6.05 -6 -5.95 -5.9 -5.85 -5.8 -5.75

1.5 1.52 1.54 1.56 1.58 1.6 1.62 1.64 1.66 1.68 1.7 1.72

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

13.04 13.06 13.08 13.1 13.12 13.14 13.16 13.18 13.2 13.22 13.24

-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3

-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3

Displacement

LCB

LCF

KB

KMt

KML

Immersion (TPc)

MTc

Displacement kg

Draft m

Long. centre from zero pt. (+ve fwd) m

KB m

KM trans. m

KM long. m

Immersion tonne/cm

Moment to trim tonne.m

Draught Amidships m 1.980 2.000 2.020 2.040 2.060 2.080 2.100 2.120 2.140 2.160 2.180 Displacement kg 17570 18173 18785 19405 20034 20672 21318 21974 22638 23311 23992 Wetted Area m^2 45.164 45.828 46.499 47.177 47.857 48.537 49.184 49.872 50.567 51.266 51.970 Waterpl. Area m^2 29.224 29.639 30.056 30.474 30.895 31.321 31.749 32.177 32.608 33.038 33.468 LCB from zero pt. (+ve fwd) m -5.840 -5.847 -5.855 -5.864 -5.872 -5.881 -5.890 -5.900 -5.909 -5.919 -5.930 LCF from zero pt. (+ve fwd) m -6.065 -6.084 -6.104 -6.125 -6.146 -6.169 -6.193 -6.218 -6.243 -6.269 -6.295 KB m 1.576 1.590 1.603 1.617 1.631 1.644 1.658 1.671 1.685 1.698 1.711 BMt m 1.387 1.376 1.365 1.354 1.343 1.333 1.322 1.311 1.300 1.289 1.279 BML m 11.579 11.534 11.500 11.475 11.459 11.456 11.462 11.473 11.491 11.513 11.538 GMt m 1.082 1.085 1.088 1.091 1.094 1.097 1.099 1.102 1.105 1.107 1.110 GML m 11.275 11.243 11.223 11.212 11.209 11.220 11.240 11.264 11.295 11.331 11.369 KMt m 2.962 2.965 2.968 2.971 2.974 2.977 2.979 2.982 2.985 2.987 2.990 KML m 13.155 13.123 13.103 13.092 13.089 13.100 13.120 13.144 13.175 13.211 13.249 Immersion (TPc) tonne/cm 0.300 0.304 0.308 0.312 0.317 0.321 0.325 0.330 0.334 0.339 0.343 MTc tonne.m 0.180 0.186 0.192 0.198 0.204 0.211 0.218 0.225 0.232 0.240 0.248


22

Hydrostatic Curves & Data (cont.) S.G. = 1.025 K is at under side of keel amidships. Draught is to underside of keel amidships. 2. Trim by the Stern: Fixed Trim = 0.3 m (+ve by stern)

1.98

2.01

2.04

2.07

2.1

2.13

2.16

2.19

13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 25000

-6.75 -6.7 -6.65 -6.6 -6.55 -6.5 -6.45 -6.4 -6.35 -6.3 -6.25 -6.2 -6.15

1.5 1.52 1.54 1.56 1.58 1.6 1.62 1.64 1.66 1.68 1.7 1.72 1.74

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6

14.35 14.4 14.45 14.5 14.55 14.6 14.65 14.7 14.75 14.8 14.85 14.9 14.95

-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5

-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5

Displacement

LCB

LCF

KB

KMt

KML

Immersion (TPc)

MTc

Displacement kg

Draft m


KB m

KM trans. m

KM long. m

Immersion tonne/cm




23

Hydrostatic Curves & Data (cont.) S.G. = 1.025 K is at under side of keel amidships. Draught is to underside of keel amidships. 3. Trim by the Bow: Fixed Trim = -0.3 m (-ve by the bow)

1.98

2.01

2.04

2.07

2.1

2.13

2.16

2.19

13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000

-6 -5.95 -5.9 -5.85 -5.8 -5.75 -5.7 -5.65 -5.6 -5.55 -5.5 -5.45

1.5 1.52 1.54 1.56 1.58 1.6 1.62 1.64 1.66 1.68 1.7 1.72

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

12.05 12.1 12.15 12.2 12.25 12.3 12.35 12.4 12.45 12.5 12.55 12.6

-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3

-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3

Displacement

LCB

LCF

KB

KMt

KML

Immersion (TPc)

MTc

Displacement kg

Draft m


KB m

KM trans. m

KM long. m

Immersion tonne/cm




24

KN Cross Curves and Tabulated Data Specific gravity = 1.025; (Density = 1025 kg/m^3); VCG = 0 m; TCG = 0 m 1. Level Trim: Fixed Trim = 0 m (+ve by stern)

-0.4

0

0.4

0.8

1.2

1.6

2

2.4

2.8

17000 18000 19000 20000 21000 22000 23000 24000 25000

0 deg. KN

10 deg. KN

20 deg. KN

30 deg. KN

40 deg. KN

50 deg. KN

60 deg. KN70 deg. KN80 deg. KN90 deg. KN

100 deg. KN

110 deg. KN

120 deg. KN

130 deg. KN

140 deg. KN

150 deg. KN

160 deg. KN

170 deg. KN180 deg. KN

Displacement (intact) kg

KN m

Displacement

(intact) kg KN

10.0 deg. KN

20.0 deg. KN

30.0 deg. KN

40.0 deg. KN

50.0 deg. KN

60.0 deg. KN

70.0 deg. KN

80.0 deg. KN

90.0 deg. 17000 0.513 1.009 1.475 1.902 2.232 2.456 2.642 2.691 2.614 17500 0.514 1.010 1.477 1.903 2.231 2.452 2.635 2.689 2.612 18000 0.514 1.011 1.479 1.904 2.229 2.448 2.627 2.686 2.610 18500 0.515 1.013 1.481 1.905 2.227 2.444 2.620 2.683 2.608 19000 0.515 1.014 1.483 1.906 2.225 2.441 2.613 2.681 2.605 19500 0.516 1.015 1.485 1.906 2.223 2.438 2.606 2.678 2.603 20000 0.516 1.016 1.487 1.906 2.221 2.435 2.599 2.675 2.601 20500 0.517 1.017 1.489 1.907 2.219 2.433 2.592 2.673 2.599 21000 0.517 1.018 1.491 1.907 2.217 2.430 2.586 2.670 2.597 21500 0.517 1.019 1.493 1.906 2.214 2.428 2.580 2.666 2.595 22000 0.518 1.020 1.495 1.906 2.212 2.426 2.575 2.663 2.593 22500 0.518 1.021 1.497 1.906 2.210 2.424 2.570 2.659 2.591 23000 0.519 1.022 1.499 1.905 2.207 2.421 2.565 2.655 2.589 23500 0.519 1.023 1.500 1.905 2.205 2.419 2.561 2.651 2.587 24000 0.519 1.024 1.502 1.904 2.203 2.417 2.557 2.647 2.585

Displacement

(intact) kg KN

100.0 deg. KN

110.0 deg. KN

120.0 deg. KN

130.0 deg. KN

140.0 deg. KN

150.0 deg. KN

160.0 deg. KN

170.0 deg. KN

180.0 deg. 17000 2.441 2.191 1.878 1.517 1.129 0.742 0.403 0.121 0.000 17500 2.441 2.192 1.881 1.522 1.136 0.750 0.412 0.127 0.000 18000 2.440 2.193 1.883 1.526 1.142 0.758 0.421 0.133 0.000 18500 2.439 2.194 1.886 1.531 1.148 0.766 0.429 0.139 0.000 19000 2.439 2.195 1.889 1.535 1.155 0.774 0.437 0.144 0.000 19500 2.438 2.196 1.891 1.540 1.161 0.782 0.445 0.150 0.000 20000 2.437 2.197 1.894 1.544 1.167 0.789 0.452 0.156 0.000 20500 2.437 2.198 1.897 1.548 1.173 0.797 0.460 0.162 0.000 21000 2.436 2.199 1.899 1.552 1.178 0.805 0.467 0.168 0.000 21500 2.435 2.200 1.902 1.557 1.184 0.812 0.474 0.175 0.000 22000 2.435 2.201 1.904 1.561 1.190 0.820 0.481 0.181 0.000 22500 2.434 2.202 1.907 1.565 1.196 0.827 0.488 0.187 0.000 23000 2.434 2.203 1.910 1.569 1.201 0.835 0.495 0.194 0.000 23500 2.433 2.204 1.912 1.573 1.207 0.842 0.501 0.200 0.000 24000 2.433 2.205 1.915 1.577 1.212 0.849 0.507 0.206 0.000


25

KN Cross Curves and Tabulated Data (cont.) Specific gravity = 1.025; (Density = 1025 kg/m^3); VCG = 0 m; TCG = 0 m 2. Trim by the Stern: Fixed Trim = 0.3 m (+ve by stern)

-0.4

0

0.4

0.8

1.2

1.6

2

2.4

2.8

17000 18000 19000 20000 21000 22000 23000 24000 25000

0 deg. KN

10 deg. KN

20 deg. KN

30 deg. KN

40 deg. KN

50 deg. KN


100 deg. KN

110 deg. KN

120 deg. KN

130 deg. KN

140 deg. KN

150 deg. KN

160 deg. KN

170 deg. KN180 deg. KN


KN m

Displacement

(intact) kg KN

10.0 deg. KN

20.0 deg. KN

30.0 deg. KN

40.0 deg. KN

50.0 deg. KN

60.0 deg. KN

70.0 deg. KN

80.0 deg. KN

90.0 deg. 17000 0.520 1.022 1.494 1.922 2.249 2.470 2.655 2.698 2.615 17500 0.521 1.024 1.496 1.923 2.246 2.465 2.647 2.695 2.613 18000 0.521 1.025 1.498 1.924 2.244 2.461 2.640 2.692 2.610 18500 0.522 1.026 1.500 1.925 2.242 2.457 2.632 2.689 2.608 19000 0.522 1.027 1.502 1.925 2.239 2.453 2.625 2.686 2.605 19500 0.522 1.028 1.504 1.925 2.237 2.449 2.618 2.683 2.603 20000 0.523 1.029 1.506 1.925 2.234 2.446 2.611 2.680 2.601 20500 0.523 1.030 1.508 1.925 2.232 2.443 2.604 2.676 2.599 21000 0.523 1.031 1.510 1.924 2.229 2.440 2.598 2.673 2.596 21500 0.524 1.032 1.512 1.924 2.227 2.438 2.591 2.669 2.594 22000 0.524 1.033 1.513 1.923 2.224 2.435 2.585 2.665 2.592 22500 0.524 1.034 1.515 1.922 2.221 2.433 2.580 2.661 2.590 23000 0.525 1.034 1.516 1.921 2.219 2.431 2.574 2.657 2.588 23500 0.525 1.035 1.517 1.920 2.216 2.428 2.570 2.653 2.586 24000 0.525 1.036 1.518 1.919 2.214 2.426 2.565 2.649 2.584

Displacement

(intact) kg KN

100.0 deg. KN

110.0 deg. KN

120.0 deg. KN

130.0 deg. KN

140.0 deg. KN

150.0 deg. KN

160.0 deg. KN

170.0 deg. KN

180.0 deg. 17000 2.440 2.187 1.872 1.508 1.116 0.725 0.392 0.112 0.000 17500 2.439 2.188 1.875 1.512 1.122 0.734 0.401 0.119 0.000 18000 2.438 2.189 1.877 1.517 1.129 0.743 0.411 0.125 0.000 18500 2.437 2.190 1.880 1.521 1.135 0.751 0.419 0.132 0.000 19000 2.436 2.191 1.882 1.526 1.141 0.760 0.428 0.138 0.000 19500 2.436 2.192 1.885 1.530 1.148 0.769 0.437 0.145 0.000 20000 2.435 2.193 1.888 1.534 1.154 0.777 0.445 0.151 0.000 20500 2.434 2.194 1.890 1.538 1.160 0.786 0.453 0.158 0.000 21000 2.434 2.195 1.893 1.543 1.166 0.794 0.460 0.165 0.000 21500 2.433 2.196 1.895 1.547 1.172 0.803 0.468 0.172 0.000 22000 2.432 2.197 1.898 1.551 1.178 0.811 0.475 0.179 0.000 22500 2.432 2.198 1.900 1.556 1.184 0.819 0.482 0.186 0.000 23000 2.431 2.199 1.903 1.560 1.190 0.827 0.489 0.193 0.000 23500 2.431 2.200 1.905 1.564 1.196 0.835 0.496 0.199 0.000 24000 2.430 2.200 1.908 1.568 1.202 0.843 0.503 0.206 0.000


26

KN Cross Curves and Tabulated Data (cont.) Specific gravity = 1.025; (Density = 1025 kg/m^3); VCG = 0 m; TCG = 0 m 3. Trim by the Bow: Fixed Trim = -0.3 m (-ve by the bow)

-0.4

0

0.4

0.8

1.2

1.6

2

2.4

2.8

17000 18000 19000 20000 21000 22000 23000 24000 25000

0 deg. KN

10 deg. KN

20 deg. KN

30 deg. KN

40 deg. KN

50 deg. KN


100 deg. KN

110 deg. KN

120 deg. KN

130 deg. KN

140 deg. KN

150 deg. KN

160 deg. KN

170 deg. KN

180 deg. KN


KN m

Displacement

(intact) kg KN

10.0 deg. KN

20.0 deg. KN

30.0 deg. KN

40.0 deg. KN

50.0 deg. KN

60.0 deg. KN

70.0 deg. KN

80.0 deg. KN

90.0 deg. 17000 0.508 0.997 1.458 1.883 2.216 2.441 2.627 2.683 2.612 17500 0.508 0.999 1.461 1.885 2.214 2.437 2.620 2.681 2.610 18000 0.509 1.000 1.463 1.886 2.213 2.433 2.613 2.679 2.609 18500 0.509 1.001 1.465 1.887 2.211 2.430 2.606 2.676 2.607 19000 0.510 1.003 1.467 1.888 2.209 2.427 2.599 2.674 2.605 19500 0.510 1.004 1.470 1.889 2.208 2.425 2.592 2.671 2.603 20000 0.511 1.005 1.472 1.890 2.206 2.422 2.585 2.669 2.601 20500 0.511 1.007 1.474 1.890 2.204 2.420 2.579 2.666 2.599 21000 0.512 1.008 1.476 1.891 2.202 2.418 2.574 2.664 2.597 21500 0.512 1.009 1.478 1.891 2.200 2.416 2.568 2.661 2.595 22000 0.513 1.010 1.480 1.891 2.198 2.414 2.564 2.658 2.593 22500 0.513 1.011 1.482 1.891 2.196 2.412 2.559 2.655 2.591 23000 0.514 1.012 1.484 1.891 2.194 2.410 2.555 2.651 2.589 23500 0.514 1.014 1.486 1.890 2.192 2.408 2.552 2.648 2.587 24000 0.515 1.015 1.488 1.890 2.190 2.406 2.548 2.644 2.585

Displacement

(intact) kg KN

100.0 deg. KN

110.0 deg. KN

120.0 deg. KN

130.0 deg. KN

140.0 deg. KN

150.0 deg. KN

160.0 deg. KN

170.0 deg. KN

180.0 deg. 17000 2.445 2.198 1.889 1.534 1.153 0.771 0.426 0.147 0.000 17500 2.444 2.199 1.892 1.539 1.159 0.778 0.434 0.152 0.000 18000 2.443 2.200 1.895 1.543 1.165 0.785 0.442 0.156 0.000 18500 2.443 2.201 1.897 1.548 1.170 0.792 0.449 0.161 0.000 19000 2.442 2.202 1.900 1.552 1.176 0.799 0.456 0.165 0.000 19500 2.442 2.203 1.903 1.556 1.182 0.805 0.463 0.170 0.000 20000 2.441 2.204 1.906 1.560 1.187 0.812 0.470 0.174 0.000 20500 2.440 2.205 1.908 1.564 1.192 0.818 0.477 0.179 0.000 21000 2.440 2.206 1.911 1.568 1.198 0.824 0.483 0.183 0.000 21500 2.439 2.207 1.913 1.572 1.203 0.831 0.489 0.188 0.000 22000 2.439 2.208 1.916 1.576 1.208 0.837 0.496 0.193 0.000 22500 2.438 2.210 1.918 1.580 1.213 0.843 0.502 0.197 0.000 23000 2.438 2.211 1.921 1.583 1.218 0.849 0.508 0.202 0.000 23500 2.437 2.212 1.923 1.587 1.223 0.856 0.514 0.207 0.000 24000 2.437 2.213 1.925 1.591 1.228 0.862 0.519 0.212 0.000


27

Notes on the Use of KN Cross Curves KN curves for displacements of 17000 to 24000 kg are presented for angles of heel at intervals between 10 and 180 degrees. The hull, main deck, superstructure, coachroof and enclosed deck structures (see Figure 1 below) are assumed to be watertight at all angles of heel. The mast has not been included. To obtain righting arm (GZ) curves at a given displacement, the following equation should be used:

GZ = KN - KG x sin(heel angle) (See Figure 2 below)

This enables the value of GZ to be calculated at each of the heel angles presented, and subsequently plotted as in the loading conditions presented herein. Figure 1

Figure 2


28

Inclining Experiment & Lightship Determination (Worksheet)


29


30

Flotation Data for Inclining Test Draft Amidships m 2.068 Displacement kg 20191 Heel deg -0.2 Draft at FP m 2.092 Draft at AP m 2.043 Draft at LCF m 2.065 Trim (+ve by stern) m -0.049 WL Length m 11.918 Beam max extents on WL m 3.863 Beam on WL of station with max area m 3.828 Immersed depth amidships m 2.068 Wetted Area m^2 47.921 Waterpl. Area m^2 30.849 LCB from zero pt. (+ve fwd) m -5.823 LCF from zero pt. (+ve fwd) m -6.103 Immersion (TPc) tonne/cm 0.316 MTc tonne.m 0.201 RM at 1deg = GMt.Disp.sin(1) kg.m 360.054 Max deck inclination deg 0.3152 Trim angle (+ve by stern) deg -0.2574


31

Tank Calibrations 1. FW Tank Fluid Type = Fresh Water Specific gravity = 1 Permeability = 95 % Trim = 0 m (+ve by stern)

Sounding m

Ullage m

% Full Capacity m^3

Capacity kg

LCG m

TCG m

VCG m

FSM kg.m

0.719 0.000 100.000 0.923 922.6 -4.949 0.000 1.262 0.000 0.711 0.008 98.000 0.904 904.2 -4.949 0.000 1.257 708.763 0.710 0.009 97.900 0.903 903.3 -4.949 0.000 1.257 708.763 0.700 0.019 95.391 0.880 880.1 -4.949 0.000 1.252 708.763 0.650 0.069 83.261 0.768 768.2 -4.952 0.000 1.224 708.763 0.600 0.119 71.132 0.656 656.3 -4.956 0.000 1.196 708.763 0.550 0.169 59.003 0.544 544.4 -4.961 0.000 1.166 708.763 0.500 0.219 46.947 0.433 433.2 -4.969 0.000 1.133 667.789 0.450 0.269 35.553 0.328 328.0 -4.976 0.000 1.099 496.965 0.400 0.319 25.548 0.236 235.7 -4.986 0.000 1.063 317.195 0.350 0.369 17.125 0.158 158.0 -5.002 0.000 1.024 175.174 0.300 0.419 10.495 0.097 96.8 -5.028 0.000 0.980 73.164 0.250 0.469 5.980 0.055 55.2 -5.071 0.000 0.933 15.496 0.200 0.519 3.794 0.035 35.0 -5.120 0.000 0.897 1.890 0.150 0.569 2.205 0.020 20.3 -5.216 0.000 0.865 1.667 0.100 0.619 1.000 0.009 9.2 -5.323 0.000 0.833 1.262 0.100 0.619 0.998 0.009 9.2 -5.323 0.000 0.833 1.262 0.050 0.669 0.251 0.002 2.3 -5.435 0.000 0.799 0.663 0.000 0.719 0.000 0.000 0.0 -5.547 0.000 0.766 0.000

0102030405060708090

100

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

0 100 200 300 400 500 600 700 800 900 1000

-6 -5 -4 -3 -2 -1 0 1 2 3 4

0 100 200 300 400 500 600 700 800 900 1000

Sounding

Ullage

Capacity

LCG

TCG

VCG

FSM

Soundings & Ullage m

FW T

ank

% F

ull

Capacity kg

Centre of Gravity m

Free Surface Moment kg.m


32

2. Fuel Tank Fluid Type = Diesel Specific gravity = 0.84 Permeability = 95 % Trim = 0 m (+ve by stern) ` Sounding

m Ullage

m % Full Capacity

m^3 Capacity

kg LCG

m TCG

m VCG

m FSM kg.m

0.854 0.000 100.000 0.664 558.0 -6.127 0.000 1.240 0.000 0.850 0.004 99.087 0.658 552.9 -6.126 0.000 1.237 403.309 0.845 0.009 98.000 0.651 546.8 -6.126 0.000 1.235 403.309 0.845 0.009 97.900 0.650 546.3 -6.126 0.000 1.235 403.309 0.800 0.054 87.675 0.582 489.2 -6.126 0.000 1.209 403.309 0.750 0.104 76.262 0.507 425.5 -6.125 0.000 1.180 403.309 0.700 0.154 64.850 0.431 361.9 -6.125 0.000 1.149 403.309 0.650 0.204 53.437 0.355 298.2 -6.123 0.000 1.115 403.309 0.600 0.254 42.084 0.280 234.8 -6.122 0.000 1.077 367.437 0.550 0.304 31.732 0.211 177.1 -6.121 0.000 1.034 242.114 0.500 0.354 22.900 0.152 127.8 -6.120 0.000 0.987 139.743 0.450 0.404 15.807 0.105 88.2 -6.120 0.000 0.933 62.958 0.400 0.454 10.781 0.072 60.2 -6.124 0.000 0.875 15.879 0.350 0.504 8.286 0.055 46.2 -6.134 0.000 0.835 0.846 0.300 0.554 6.849 0.045 38.2 -6.139 0.000 0.809 0.825 0.250 0.604 5.414 0.036 30.2 -6.148 0.000 0.784 0.825 0.200 0.654 3.979 0.026 22.2 -6.163 0.000 0.758 0.825 0.150 0.704 2.545 0.017 14.2 -6.196 0.000 0.730 0.825 0.100 0.754 1.146 0.008 6.4 -6.294 0.000 0.699 0.675 0.094 0.760 1.000 0.007 5.6 -6.310 0.000 0.694 0.598 0.050 0.804 0.269 0.002 1.5 -6.425 0.000 0.665 0.246 0.000 0.854 0.000 0.000 0.0 -6.545 0.000 0.631 0.000

0102030405060708090

100

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2

0 50 100 150 200 250 300 350 400 450 500 550 600

-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5

0 50 100 150 200 250 300 350 400 450 500 550 600

Sounding

Ullage

Capacity

LCG

TCG

VCG

FSM


Fuel

Tan

k %

Ful

l

Capacity kg

Centre of Gravity m



33

3. Hot Water Tank Fluid Type = Fresh Water Specific gravity = 1 Permeability = 95 % Trim = 0 m (+ve by stern)

0

20

40

60

80

100

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55

0 5 10 15 20 25 30 35 40 45 50 55

-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1

SoundingUllage

CapacityLCG

TCGVCG

FSM


Hot

Wat

er T

ank

% F

ull

Capacity kg

Centre of Gravity m


Sounding m

Ullage m

% Full Capacity m^3

Capacity kg

LCG m

TCG m

VCG m

FSM kg.m

0.400 0.000 100.000 0.040 40.0 -8.171 0.908 1.716 0.000 0.380 0.020 95.000 0.038 38.0 -8.171 0.908 1.706 0.897 0.360 0.040 90.000 0.036 36.0 -8.171 0.908 1.696 0.897 0.340 0.060 85.000 0.034 34.0 -8.171 0.908 1.686 0.897 0.320 0.080 80.000 0.032 32.0 -8.171 0.908 1.676 0.897 0.300 0.100 75.000 0.030 30.0 -8.171 0.908 1.666 0.897 0.280 0.120 70.000 0.028 28.0 -8.171 0.908 1.656 0.897 0.260 0.140 65.000 0.026 26.0 -8.171 0.908 1.646 0.897 0.240 0.160 60.000 0.024 24.0 -8.171 0.908 1.636 0.897 0.220 0.180 55.000 0.022 22.0 -8.171 0.908 1.626 0.897 0.200 0.200 50.000 0.020 20.0 -8.171 0.908 1.616 0.897 0.180 0.220 45.000 0.018 18.0 -8.171 0.908 1.606 0.897 0.160 0.240 40.000 0.016 16.0 -8.171 0.908 1.596 0.897 0.140 0.260 35.000 0.014 14.0 -8.171 0.908 1.586 0.897 0.120 0.280 30.000 0.012 12.0 -8.171 0.908 1.576 0.897 0.100 0.300 25.000 0.010 10.0 -8.171 0.908 1.566 0.897 0.080 0.320 20.000 0.008 8.0 -8.171 0.908 1.556 0.897 0.060 0.340 15.000 0.006 6.0 -8.171 0.908 1.546 0.897 0.040 0.360 10.000 0.004 4.0 -8.171 0.908 1.536 0.897 0.020 0.380 5.000 0.002 2.0 -8.171 0.908 1.526 0.897 0.004 0.396 1.000 0.000 0.4 -8.171 0.908 1.518 0.897 0.000 0.400 0.000 0.000 0.0 -8.171 0.908 1.516 0.000


34

4. Sewage Holding Tank – Fwd Heads Fluid Type = Sewage Specific gravity = 1 Permeability = 95 % Trim = 0 m (+ve by stern)

0

20

40

60

80

100

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6

0 5 10 15 20 25 30 35 40 45 50 55 60

-3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3

SoundingUllage

CapacityLCG

TCGVCG

FSM


Fwd

Sew

age

Tank

% F

ull

Capacity kg

Centre of Gravity m


Sounding m

Ullage m

% Full Capacity m^3

Capacity kg

LCG m

TCG m

VCG m

FSM kg.m

0.389 0.000 100.000 0.056 56.2 -2.687 0.998 2.386 0.000 0.380 0.009 97.762 0.055 55.0 -2.687 0.998 2.382 1.929 0.360 0.029 92.616 0.052 52.1 -2.687 0.998 2.372 1.929 0.340 0.049 87.471 0.049 49.2 -2.687 0.998 2.362 1.929 0.320 0.069 82.326 0.046 46.3 -2.687 0.998 2.352 1.929 0.300 0.089 77.180 0.043 43.4 -2.687 0.998 2.342 1.929 0.280 0.109 72.035 0.040 40.5 -2.687 0.998 2.332 1.929 0.260 0.129 66.890 0.038 37.6 -2.687 0.998 2.322 1.929 0.240 0.149 61.744 0.035 34.7 -2.687 0.998 2.312 1.929 0.220 0.169 56.599 0.032 31.8 -2.687 0.998 2.302 1.929 0.200 0.189 51.454 0.029 28.9 -2.687 0.998 2.292 1.929 0.180 0.209 46.308 0.026 26.0 -2.687 0.998 2.282 1.929 0.160 0.229 41.163 0.023 23.1 -2.687 0.998 2.272 1.929 0.140 0.249 36.017 0.020 20.2 -2.687 0.998 2.262 1.929 0.120 0.269 30.872 0.017 17.4 -2.687 0.998 2.252 1.929 0.100 0.289 25.727 0.014 14.5 -2.687 0.998 2.242 1.929 0.080 0.309 20.581 0.012 11.6 -2.687 0.998 2.232 1.929 0.060 0.329 15.436 0.009 8.7 -2.687 0.998 2.222 1.929 0.040 0.349 10.291 0.006 5.8 -2.687 0.998 2.212 1.929 0.020 0.369 5.145 0.003 2.9 -2.687 0.998 2.202 1.929 0.004 0.385 1.000 0.001 0.6 -2.687 0.998 2.194 1.929 0.000 0.389 0.000 0.000 0.0 -2.687 0.998 2.192 0.000


35

5. Sewage Holding Tank – Aft Heads Fluid Type = Sewage Specific gravity = 1 Permeability = 95 % Trim = 0 m (+ve by stern)

0

20

40

60

80

100

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6

0 5 10 15 20 25 30 35 40 45 50 55 60

-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3

SoundingUllage

CapacityLCG

TCGVCG

FSM


Aft

Sew

age

Tank

% F

ull

Capacity kg

Centre of Gravity m


Sounding

m Ullage

m % Full Capacity

m^3 Capacity

kg LCG

m TCG

m VCG

m FSM kg.m

0.389 0.000 100.000 0.056 56.2 -8.901 1.102 2.175 0.000 0.380 0.009 97.686 0.055 54.9 -8.901 1.102 2.171 1.919 0.360 0.029 92.545 0.052 52.0 -8.901 1.102 2.161 1.919 0.340 0.049 87.404 0.049 49.1 -8.901 1.102 2.151 1.919 0.320 0.069 82.262 0.046 46.2 -8.901 1.102 2.141 1.919 0.300 0.089 77.121 0.043 43.3 -8.901 1.102 2.131 1.919 0.280 0.109 71.979 0.040 40.4 -8.901 1.102 2.121 1.919 0.260 0.129 66.838 0.038 37.5 -8.901 1.102 2.111 1.919 0.240 0.149 61.697 0.035 34.7 -8.901 1.102 2.101 1.919 0.220 0.169 56.555 0.032 31.8 -8.901 1.102 2.091 1.919 0.200 0.189 51.414 0.029 28.9 -8.901 1.102 2.081 1.919 0.180 0.209 46.272 0.026 26.0 -8.901 1.102 2.071 1.919 0.160 0.229 41.131 0.023 23.1 -8.901 1.102 2.061 1.919 0.140 0.249 35.990 0.020 20.2 -8.901 1.102 2.051 1.919 0.120 0.269 30.848 0.017 17.3 -8.901 1.102 2.041 1.919 0.100 0.289 25.707 0.014 14.4 -8.901 1.102 2.031 1.919 0.080 0.309 20.566 0.012 11.6 -8.901 1.102 2.021 1.919 0.060 0.329 15.424 0.009 8.7 -8.901 1.102 2.011 1.919 0.040 0.349 10.283 0.006 5.8 -8.901 1.102 2.001 1.919 0.020 0.369 5.141 0.003 2.9 -8.901 1.102 1.991 1.919 0.004 0.385 1.000 0.001 0.6 -8.901 1.102 1.983 1.919 0.000 0.389 0.000 0.000 0.0 -8.901 1.102 1.981 0.000


36

Notes on the Use of Free Surface Moments Provided a tank is completely filled with liquid no movement of the liquid is possible and the effect on the ship’s stability is precisely the same as if the tank contained solid material. Immediately a quantity of liquid is withdrawn from the tank the situation changes completely and the stability of the ship is adversely affected by what is known as a “free surface effect”. This adverse effect on the stability is referred to as a “loss in GM” or as a “virtual rise in VCG” and is calculated as follows: Loss in GM due to = Free Surface Inertia (m4) x Density of Liquid in Tank (Tonnes/m3) Free Surface Effect Displacement of Vessel (Tonnes) = Free Surface Moment (Tonne.m) Displacement of Vessel (Tonnes) The free surface moments listed in the Tank Capacities Table refer to isolated tanks. If tanks are cross-coupled the free surface moments will be considerably greater. Cross connection valves should therefore remain closed when the vessel is at sea.


37

APPENDICES


38

Appendix 1 Beaufort Scale of Wind Speeds and Corresponding Pressures Beaufort General Limits of Pressure Number Description Speed in Knots kg. per sq. metre 1 Light Air 1 to 3 0.02 - 0.2 2 Light Breeze 4 to 6 0.3 - 0.6 3 Gentle Breeze 7 to 10 0.8 - 1.7 4 Moderate Breeze 11 to 16 2.0 - 4.2 5 Fresh Breeze 17 to 21 4.8 - 7.3 6 Strong Breeze 22 to 27 8 - 12 7 Near Gale 28 to 33 13 - 18 8 Gale 34 to 40 19 - 26 9 Strong Gale 41 to 47 27 - 37 10 Storm 48 to 55 38 - 50 11 Violent Storm 56 to 63 52 - 66 12 Hurricane 64 and over 68 and over


39

Appendix 2 Metric/Imperial Conversion Unit Conversion Tables MULTIPLY BY TO CONVERT FROM TO OBTAIN 0.039370 mm inches 0.39370 cm inches 3.2808 m feet 2.2046 kg lbs 0.00098421 kg Tons (2240 lbs) 0.98421 Tonnes (1000 KG) Tons (2240 lbs) 2.4999 Tonnes per cm Tons per inch 8.2017 Tonnes metres units (MCTC) Ton feet units (MCTI) 187.98 Metre Radians Foot Deg MULTIPLY BY TO CONVERT FROM TO OBTAIN 25.4 inches mm 2.54 inches cm 0.3048 feet m 0.45359 lbs kg 1016.0 Tons (2240 lbs) kg 1.016 Tons (2240 lbs) Tonnes (1000 KG) 0.40002 Tons per inch Tonnes per cm 0.12193 Ton feet units (MCTI) Tonnes metres units (MCTC) 0.0053198 Foot Deg Metre Radians 10 mm cubed = 1 cubic centimetre 1 cubic centimetre F.W. S.G. 1.0 = 1 gramme 1000 cubic centimetres F.W. S.G. 1.0 = 1 kilogramme 1 cubic metre F.W. S.G. 1.0 = 1 tonne (1000 kilos) 1 cubic metre S.W. S.G. 1.025 = 1.025 tonnes 1 tonne S.W. S.G. 1.025 = 0.975 cubic metres 1 cubic metre = 35.315 cubic feet 1 cubic foot = 0.0283 cubic metres


40

Appendix 3 Software Version and Settings The data and plots for this vessel were calculated using the following software: Maxsurf Stability Advanced 18.02, build: 22 Model file: C:\Documents and Settings\Owner\My Documents\Leon Schulz HR46\Maxsurf and Stability\HR46 - Regina Laska Stability Model Highest precision: 509 sections Trimming: on Skin thickness: applied. Longitudinal datum: User defined at FP, 1.594m aft Stem Vertical datum: Baseline, at USK projected. Analysis tolerance - ideal (worst case): Disp.%: 0.01000 (0.100) Trim% (LCG-TCG): 0.01000 (0.100) Heel% (LCG-TCG): 0.01000 (0.100) 3D Stability Model: