fishing vessel safety proposed stability regulations (fvsr) … · 2014. 6. 3. · ¾gz curve area:...

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Fishing Vessel Safety Regulations (FVSR) Project

Proposed Stability Standards & Regulations

January 2005

Transport Canada Marine Safety

All new existing and modified fishing vessels up to 24 metres in length.

Stability Standards & RegulationsGeneral Application

The authorized representative of a fishing vessel shall ensure that the required criteria as stipulated in these Regulations and TP XXX are satisfied in all respects.


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Vessels 12-24 metres must conduct an inclining experiment, submit a stability booklet and comply with the intact stability criteria set out in TP XXX, Part A, in the following situations:

a) >15 metres in length

Stability Standards & RegulationsSpecific Application;

) gb) Engaged in trawling, dredging and purse seiningc) Bulk carriage of herring or capelind) Carriage of liquid cargoe) Beyond Group 3 voyagesf) Operating between 01 December and 31 March inclusive, in area

where ice accretion is likely to occur;g) Multiple decksh) R ll i d t t d t l ith th i i it i


h) Roll period tests do not comply with the minimum criteriai) Cockpits or wells are fitted in the freeboard deck orj) Anti-rolling tanks.

In all other situations, the fishing vessel must satisfy the simplified stability test & criteria set out in TP XXX, Part B.

Vessels < 12 metres must conduct an inclining experiment submit a stability booklet and comply with the intact stability criteria set out in TP XXX, Part A, in the following situations

Stability Standards & RegulationsSpecific Application

a) Engaged in trawling, dredging and purse seining or where heavy gear is towed

b) Beyond Group 3 voyagesc) Operating between 01 December and 31 March inclusive, in area

where ice accretion is likely to occur;d) Multiple deckse) Roll period tests do not comply with the minimum criteriaf) Anti-rolling tanks


In all other situations, the fishing vessel must satisfy the simplified stability test & criteria set out in TP XXX, Part B.

f) Anti rolling tanks

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Stability Regulations

The authorized representative of a new, existing or a modified fishing vessel shall ensure that:

1 The simplified stability test is conducted by a marine inspector or

Stability Test Assessment

1. The simplified stability test is conducted by a marine inspector or

2. The inclining experiment is witnessed by a marine inspector and conducted and endorsed by;

a) A Professional Engineer


) g

b) A Naval Architect or

c) Any other person approved by the Minister and


The stability booklet shall be endorsed and stamped compliant by:


Stability Documentation


c) Any other person approved by the Minister.

A certified copy of Stability booklet shall be provided to the M f h l d TCMS f di i


Master of the vessel and to TCMS for auditing purposes.

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All fishing vessels shall be marked in accordance with the requirements of the Stability Standards and Regulations.

Th l ki di t th i ll bl

Markings

The vessel markings corresponding to the maximum allowable displacement of the vessel shall be:

a) As specified in the Stability booklet and the Certificate of Safety for the vessel

b) Located amidships port and starboard sides of the hull and


b) Located amidships, port and starboard sides of the hull and

c) 300mm in length and 30mm in height of a colour contrasting that of the hull and permanently fixed.


All new construction on the date of issuing the Stability Standards and Regulations

Compliance

All existing fishing vessels three years after the date of issuing the Stability Standards and Regulations


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Exemptions

Where existing fishing vessels can not meet the new stability requirements, the authorized representative shall demonstrate that the proposed modifications necessary to meet the requirementsthe proposed modifications necessary to meet the requirements will adversely affect the stability of the vessel.

Notwithstanding any new fishing vessels shall comply with the new stability requirements.



At periodic intervals not exceeding five years, the periodic displacement survey shall be witnessed by a marine inspector and conducted and endorsed by:

Periodic Displacement Survey



c) Any other person approved by the Minister.


Where the lightship displacement deviates more than 2% or where the longitudinal centre of gravity deviates more than 1% of L, the vessel shall be subject to a new stability analysis.

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Stability Standard, Part A – Intact Stability Criteria

Maximum permissible operating draft; Equal to the maximum load condition but never less than 0 4m

Design Stability Criteria

load condition but never less than 0.4m

Flooding points: > 40 degrees for hatch covers, watertight doors & engine room vents

Bow height: > 0.107 x k x L, where k =1



Design Stability Criteria (continued)

Deck cargo: The shipowner must report the value of the maximum mass resulting from storage on the deck or of the maximum catches likely to be taken in one operation.

Effect of Trim: The righting lever arms are to be calculated for all loading conditions on a free to trim basis.

Free Surface Effects: The free surface effect of all tanks, fish wells and roll stabilization tanks must be calculated for each loadingand roll stabilization tanks must be calculated for each loading condition.


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GZ curve area: The area under the righting lever curve (GZ curve) is to be not less than 0.1 m-rad up to q = 40 angle of heel.

General Intact Stability Criteria


Minimum righting lever: The righting lever GZ is to be at least 0.25 m at an angle of heel equal to or greater than 30 .

Angle of maximum righting lever: The maximum righting lever arm is to occur at an angle of heel preferably exceeding 30 but not l h 25


less than 25 .


General Intact Stability Criteria; (continued)

Initial metacentric height; GM >= 0 45 m for all loading conditionsGM0 >= 0.45 m for all loading conditions.GM0 is to be positive for the lightship condition.

Range of positive stability; A minimum range of stability of 60 degrees is to be provided for each loading condition.


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The owner of any existing fishing vessel that does not comply with the design and general intact stability criteria set in Section 5 must

l ith th lt t i t t t bilit it i

Alternate Design and Intact Stability Criteria


comply with the alternate intact stability criteria.

Stability criteria

Icing considerations

Severe wind and rolling criteria

Water on deck criteria

Treatment of lifting weights and heeling moments due to fishing gear.


Stability Standard, Part B – Simplified Stability Criteria

Provides a minimum level of safety for Group 3 voyages in coastal waters, where conditions up to wind force 6 and significant wave

Scope

waters, where conditions up to wind force 6 and significant wave heights up to 2 m may be experienced.

Application

< 24 meters that are not required to conduct an inclining experiment.


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Stability Standard, Part B – Simplified Stability CriteriaTerms and Definitions (summary)

Type ParticularityClosed vessel • Freeboard 1/10 B.

• Freeing ports 7%.Open vessel type 1 • Buoyancy materials

• Deck, cockpit, wells; not watertight.• Mechanical drainage.

Open vessel type 2 • Quick draining by gravity


Ope vesse type Quick draining by gravity.• Cockpit or well bottom at 1/20 B.• Deck, cockpit, wells; watertight.•Watertight opening with sill.

Vessel of closed construction means a vessel having a fixed watertight deck structure covering the entire length of the hull

Terms and Definitions


above the deepest operating waterline. When open wells or cockpits are fitted in the deck of the ship, it is considered to be of closed construction if flooding of the open wells or cockpits does not endanger the vessel. (See Figure 1).


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Stability Standard, Part B – Simplified Stability CriteriaTerms and Definitions (continued)

The following conditions define a Closed vessel for the purposes of simplified stability: p y

1. The height of the watertight deck structure above the deepest operating waterline must be a minimum of 1/10 of the breadth of the vessel.

2. If the deck is bounded by bulwarks, the bulwarks must be fitted i h f i h i f h f i h ll b fwith freeing ports. The size of the freeing ports shall be 7% of

bulwark area, each side.

L = 13.7mOA B = 5.18mL = 12.7mWL

Figure 1: Vessel of closed construction


2. Minimum freeboard FB = 1/10 x B = 51.8 cm1. Maximum authorized loadSimplified Stability Criteria & Test ;

3. Roll period test ; T < 1.25 X B

Test & Criteria results;4. Heeling test

FB = 51.8cmMIN

FB = 138cmO

MIN

FB = 116cmLOAD

Loaded WL

Operational WL

FREEMAN

OPEN

OPEN

FREEMAN

Test & Criteria results;

Maximum authorized load = 10091 kg

Measured operational lightship freeboard FB = 138 cmd = 460 kg per centimetre immersiond = 7 x L x B (d in kg, L and B in meters)Displacement (d) per centimetre immersion = 7 x L x B WL

WL WL

O

Weights to be added to find the fully loaded condition;200 Crabs Pots & Ice= 10091 kg

Freeboard in the fully loaded condition FB = FB - 22 cmLOAD

10091 kg / d = 10091 kg divide by 460 kg/cm = 22 cmO

FB = 116 cmLOAD


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Vessel of open construction means a vessel other than a vessel of closed construction;

O 1 l f i h h

Terms and Definitions;


Open vessel type 1 means a vessel of open construction where the following conditions exist: (See Figures 2, 3,4.)

1. The vessel is fitted with buoyancy material which meets the requirement of the reserve of buoyancy and flotation test.

2 The deck cockpit or well bottom are open to the bilge2. The deck, cockpit or well bottom are open to the bilge.

3. The deck, cockpit or well can not drain overboard in all loading conditions.


L = 6.1m

B = 1.83m

°

Flotation material

OA

Figure 2; Open vessel type 1


6 54

4 3 012

D = 0.78m

25°

3. Minimum downflooding angle = 25°2. Minimum downflooding height = 0.2 x B

FB = 0.4m

Floodable tunnel

1. Maximum authorized load = 100 x L x B x D (Kg)Simplified Stability Criteria & Test ;

4. Reserve of buoyancy5. Roll period test ; T < 1.25 X B6. Heeling test ; Residual freeboard > 1/2 x Load freeboard

LOAD

OA

Loaded WL


Floodable tunnel

3. Minimum downflooding angle = 25°2. Minimum downflooding height = 0.36 m1. Maximum authorized load = 871 kgCriteria & Test results;

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L = 7.3mB = 2.6m

OA



Cockpit Bottomangle 35°

D = 1.2m

Downflooding

Flotation material

Floodable compartmentBuoyancy compartment

Floodable compartment*

* * * *

3. Minimum downflooding angle = 25°2. Minimum downflooding height = 0.2 x B1. Maximum authorized load = 100 x L x B x D (Kg)Simplified Stability Criteria & Test;

4 Reserve of buoyancy

Floor drainFloor drain

H = 0.1 m*Buoyancy compartment

0.8m

OA

LOAD

Loaded WL


* ** * * * * *

**

4. Reserve of buoyancy5. Roll period test ; T < 1.25 X B6. Heeling test ; Residual freeboard > 1/2 x Load freeboard

*

* 3. Minimum downflooding angle = 25°2. Minimum downflooding height = 0.52 m1. Maximum authorized load = 2277 kgCriteria & Test results;

C k it B tt

B = 4.4mL = 10.5mOA

Pen boards

Herring in Bulk

Flotation material



Cockpit Bottom

Loaded WL

Operational WL

Cockpit Bottom

Pen

D =1.7m

angle Downflooding

Flotation material

3. Minimum downflooding angle = 25°2. Minimum downflooding height = 0.2 x B1. Maximum authorized load = 100 x L x B x D (Kg)Simplified Stability Criteria & Test;

4. Reserve of buoyancy5 Roll period test ; T < 1 25 X B

OA

FB = 0.96mLOAD

Herring in Bulk

29°

Non WatertightFlotation material


Scuppers

Pen boards8.4m³

5. Roll period test ; T < 1.25 X B6. Heeling test ; Residual freeboard > 1/2 x Load freeboard

Floor drain 3. Minimum downflooding angle = 25°2. Minimum downflooding height = 0.880 m1. Maximum authorized load = 7864 kgCriteria & Test results;

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Open vessel type 2 means a vessel of open construction where the following conditions exist: (See Figures 5, 6, 7.)

1 The vessel is fitted with a quick draining cockpit or well

Terms and Definitions;


1. The vessel is fitted with a quick draining cockpit or well.

2. The cockpit or well bottom height above the deepest operating water line must be at a minimum of 1/20 of the breadth of the vessel.

3. The cockpit or well bottom must be watertight and the bulwarks fi d i h f i i l h i


fitted with scuppers or freeing ports equivalent to the requirements of section 14.

4. Any opening within the cockpit area leading to an interior space of the hull must be fitted with a watertight closing appliance and sill.

B = 2.6mL = 6.39mWL

L = 7.3mOA



Cockpit BottomLoaded WL

2. Minimum cockpit bottom height H = 1/20 x B = 13cm1. Maximum authorized loadSimplified Stability Criteria & Test ;


H = 27.1cm

Test & Criteria results;Di l t (d) ti t i i 7 L B

Operational WL

O

4. Heeling test ; Residual freeboard > 1/2 x Load freeboard

H = 14.7cmLOAD

5. Quick draining cockpit

MIN

H =13 cmMIN


d = 116 kg per centimetre immersiond = 7 x L x B (d in kg, L and B in meters)Displacement (d) per centimetre immersion = 7 x L x B WL

WL WLScuppers


Measured cockpit bottom height in operational lightship condition H = 27.1 cmO

Weights to be added to find the fully loaded condition;32 Mackerel Pots & Ice= 1440 kg

Cockpit bottom height in the fully loaded condition H = H - 12.4 cmLOAD

1440 kg / d = 1440 kg divide by 116 kg/cm = 12.4 cmO

H = 14.7cmLOAD

O

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B = 2.9mL = 9.6mWL

L = 10.15mOA



-5 0 5 10 15 20 25 30

Cargo hold 5.5m³

2. Minimum cockpit bottom height H = 1/20 x B = 14.5cm1. Maximum authorized loadSimplified Stability Criteria & Test ;



4. Heeling test ; Residual freeboard > 1/2 x Load freeboard5. Quick draining cockpit

MIN

Cockpit BottomLoaded WL H = 43.9cmOperational WL O

H = 18.3cmLOAD

H =14.5 cmMIN

Scuppers



WL WL


Measured cockpit bottom height in operational lightship condition H = 43.9 cmWeights to be added to find the fully loaded condition;Herring in Bulk & Ice= 5000 kg

Cockpit bottom height in the fully loaded condition H = H - 25.6cmLOAD

5000 kg / d = 5000 kg divide by 195 kg/cm = 25.6 cmO

H = 18.3cmLOAD

O

Scuppers

B = 4.4m

L = 10.2mWL

L = 10.5mOA



2. Minimum cockpit bottom height H = 1/20 x B = 22cm1. Maximum authorized loadSimplified Stability Criteria & Test ;

3. Roll period test ; T < 1.25 X B4. Heeling test ; Residual freeboard > 1/2 x Load freeboard

MIN

Cockpit Bottom

Loaded WL H = 33.1cmOperational WL

O

H = 22.1cmLOAD

H =22 cmMIN

Scupper

Cockpit Bottom

Pen boards

D =1.7m




WL WL

g ;5. Quick draining cockpit


Measured cockpit bottom height in operational lightship condition H = 33.1 cmWeights to be added to find the fully loaded condition;Herring in Bulk= 3448 kg

Cockpit bottom height in the fully loaded condition H = H - 11cmLOAD

3448 kg / d = 3448 kg divide by 314 kg/cm = 11 cmO

H = 22.1cmLOAD

O

ScuppersPen boards3.7m³

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For closed vessels, the minimum freeboard (FBMIN) measured amidships shall be equal to or greater than 1/10 of the breadth (B)

Freeboard and Load Limit;


p q g ( )of the vessel in the fully loaded condition.

For open vessels type 2, the minimum height (HB,min)of the bottom cockpit or well measured amidships, shall be equal to or greater than 1/20 of the breadth (B) in the fully loaded condition.



Freeboard and Load Limit (continued)

Should hydrostatic data for the vessel be unavailable, the following approximate formula may be used to obtain the di l t (d) ti t i i i th ti ldisplacement (d) per centimeter immersion in the operational lightship condition.

d = 7 x LWL x B (d in kg, LWL and B in metres)

In order to check the compliance with the freeboard rule the above calculation will give the approximate submersion of the vesselcalculation will give the approximate submersion of the vessel after all weights corresponding to the fully loaded condition have been added to the operational lightship condition.


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For Open Vessel type 1;

th i th i d l d i t b d t i d b th

Load Limit, Downflooding Angle & Height


the maximum authorized load is to be determined by the following formula:

M Load (kg) = 100 x LOA x B x D

the minimum downflooding height shall not be lower than 0.2 of B in the fully loaded condition


of B in the fully loaded condition.

the minimum downflooding angle shall not be less than 25 degree in the fully loaded condition.

For Open Vessel type 2:

Quick Draining Cockpit or Well;


• A cockpit, well or deck bounded with bulwark shall only be drained by gravity, and does not consider draining by pumping or any other method.

• A quick-draining cockpit shall have at least two drains, one port and one starboard.

• The draining time shall be determined either by measurement of the actual draining time, or by direct calculation including head losses.


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General

Vessels shall be fitted with sufficient buoyancy materials to keep

Reserve Buoyancy, Open Vessel type 1Stability Standard, Part B – Simplified Stability Criteria

the vessel from sinking when it is swamped and pass the flotation and stability test

This reserve buoyancy shall be judiciously distributed to keep the vessel afloat.

The center of volume of all buoyancy materials should be higher


y y gthan the vertical center of gravity of the vessel.

For wooden vessels, this calculation may take into account the inherent buoyancy of this material to half of its value.

General;

On wooden or GRP-hulled vessels, the buoyancy volumes shall be

Reserve Buoyancy, Open Vessel type 1


filled with marine closed-cell foam material.

Buoyancy materials shall be installed in watertight compartments.

Metal-hulled double-bottom vessels that are divided longitudinally into three compartments are not required to install foam material.


Buoyancy materials shall be securely fastened to the vessel to withstand any motion they may develop; they shall be protected against impacts or chafing and shall be resistant to hydrocarbons.

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Calculation for Floatation Requirements;

Amount of buoyancy material needed to support the swamped

Reserve Buoyancy, Open Vessel type 1


y y pp pvessel and fittings other than engine and related equipment (Fb)

Amount of buoyancy material needed to support the propulsion machinery (Fp)

Amount of buoyancy material needed to support the maximum


authorized load (Fl)

Buoyancy and stability testA buoyancy test shall be performed in the presence of a marine inspector.

Reserve Buoyancy, Open Vessel type 1Stability Standard, Part B – Simplified Stability Criteria

A quarter of the maximum authorized load shall be simulated by bags of sand.

A swamping test shall be conducted to find a hydrostatic level between the outside and the inside.

Th id l bili h ll b ffi i f i h f 15 k


The residual stability shall be sufficient for a weight of 15 kg affixed to the gunwale amidships not to capsize the vessel.

This test dispenses with the requirement to supply the supporting calculations and distribution plans.

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Stability Assessment

The initial stability shall be determined by the roll period method.

Roll period test


To consider the estimated initial stability satisfactory in any operational lightship condition, the calculated value of T, in seconds, should not be more than 1.25 B.

If the calculated value of T, in seconds, is more than 1.25 B, an inclining experiment shall be conducted and the GM shall be => than 0 45 meters;than 0.45 meters;

If the GM is < than 0.45 meter, a stability analysis shall be performed according to Part A of the Stability Standard.


Stability Assessment

Where pot haulers or other lifting appliances are installed, a heeling test shall be conducted.

Heeling test :


During the load lifting and maximum outreach test, the vertical traction shall not cause submersion of the deck line amidships on a closed vessel or a reduction of more than 50 per cent of the freeboard measured prior to the operation on an open vessel.


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Thank youGuy Anderson

Marine InspectorTransport Canada / Marine Safety

180, de la Cathédrale, Rimouski, G5L 5H9418-722-3040 or 1-800-427-4417

fishing vessel safety proposed stability regulations (fvsr) … · 2014. 6. 3. · ¾gz curve area:...

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