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D58‐T2 Page 1 of 6

Welding Schedule D58‐T2 HIN Number

Date Construction Started

Pre‐Assembly Location Drawing

Number Weld Type Weld

Leg Length (mm)

Weld Throat Distance (mm)

Min Weld Length (mm)

Max Spacing (mm)

Distortion Control Comments Welders Signature Checkers Signature Surveyor Signature

Pod Transom (Chanel to Panel)

D58‐T2‐13 Fillet (stitch) 6.5 3.5 65 225 Clamp Panel & Chanel’s to flat surface

‐ Ensure no under‐cut. ‐ Keep Engine well Panel scribe line free from weld

Pod Transom (Chanel to Chanel)

D58‐T2‐13 Fillet (continuous)

6.5 3.5 Con Clamp Panel & Chanel’s to flat surface

Ensure no under‐cut.

Pod Walls (SHS to Panel‐ Top & Bot)

D58‐T2‐14 Fillet (stitch) 3 2 40 200 Clamp Panel & SHS to flat surface

‐ Ensure no under‐cut. ‐ Keep weld a couple of mm clear of transom Wall end

Transom Wall (SHS to Panel‐ Top & Bot)


‐ Ensure no under‐cut. ‐Keep weld a couple of mm clear of transom Wall end

Frame 2 (SHS to Panel‐ Top & Bot)


‐ Ensure no under‐cut. ‐Keep weld a couple of mm clear of cut out













Tank Bay Sides (SHS blocks to Panel‐ Top & Bot)


3 2 Con

Clamp Panel & SHS to flat surface

‐ Ensure no under‐cut.

Gunwale Support (SHS to Panel)

D58‐T2‐58 Fillet (stitch staggered)

3 2 40 200

Clamp Panel & SHS to flat surface (pack panel into right spot)

‐ Ensure no under‐cut. ‐Keep weld a couple of mm clear of edge

AFT Locker ( Seat vertical Stffeners)


3 2 20 4 equal spaces




Pre‐Assembly Location Drawing


Leg Length (mm)



Max Spacing (mm)

Distortion Control Comments Welders Signature Checkers Signature Surveyor Signature

Gunwale Support ( Cable Tube to Panel)


3 2 20 4 equal spaces



Stringer Assembly Joints

D58‐T2‐37, & 38

Butt (continuous)

6.5 3.5 Con Both sides

Clamp Stringer to flat surface ‐ Ensure no under‐cut.

Anchor Box D58‐T2‐51, 52 & 54

Fillet (continuous)

3 2 200 ‐ Tacked prior to welding ‐ allow to cool between welds

‐ Ensure no under‐cut. ‐ Ensure all edges are straight with no distortion. ‐ Flatten with hammer after welding

Note. The hull without Cabin structure & Flooring of the vessel is to be assembled with good quality tacks @ 100mm spaces prior to final welding components

Hull Assembly Location Drawing


Leg Length (mm)



Max Spacing (mm)

Distortion Control Comments Welders Signature Checkers Signature

Surveyors Signature

Pod Transom (Panel to keel)

D58‐T2‐13 to 24

Fillet (continuous)

6.5 3.5 Con Both Sides

‐ Let one side cool before welding other ‐ weld after bot sheet fitted


Transom Wall (Panel to keel)

D58‐T2‐16 & 23

Fillet (continuous)

3 2 Con Both Sides


‐ Ensure no under‐cut. ‐ Both sides of Keel ‐ Both sides of frame

Frames 2, 3, 5, 7 & 9 (Frames to keel)

D58‐T2‐17 ‐21

Fillet (continuous)

3 2 Con Both Sides

‐ Let one side “fully cool” before welding other ‐ weld after bot sheet fitted


Frames 2, 3, 5, 7 & 9 (Frames to bot sheet)

D58‐T2‐17‐21

Fillet (stitch intermittent)

3 2 40 225

‐ Tacked prior to welding ‐ allow to cool between welds


Frames 4, 6 & 8 (Frames to keel)


3 2 Con Both Sides

‐ Let one side “fully cool” before welding other ‐ weld after bot sheet fitted


Frames 4, 6 & 8 (Frames to Bot Sheet)

D58‐T2‐22 Fillet (stitch intermittent)

3 2 40 225



Stringers to frames Fillet (continuous)

3 2 Con Both Sides


‐ Ensure no under‐cut. ‐ Both sides of frame

Stringers to Bot sheet Fillet (stitch intermittent)

3 2 40 225



Transom Wall to bot Sheet


3 2 40 225






Leg Length (mm)



Max Spacing (mm)


Surveyors Signature

Transom Wall to side Sheet (aft side)


3 2 40 225

‐ Tacked prior to welding ‐ allow to cool between welds ‐Wet cool with rag as welding


Transom Wall to side Sheet (forward side)

Fillet (continuous)

3 2 Con For side ‐ weld after bot sheet and side sheets are fitted ‐Wet cool with rag as welding


Bottom Sheet to Keel & 20mm Dia Bar

Fillet (continuous)

3 2 Con Both sides

‐ Tacked before welding ‐ weld after bot sheet and Rod fitted ‐ Done while hull upside down

‐ Ensure no under‐cut. ‐ Ensure inside well tacked at max 100 ctrs Prior to welding ‐ Ensure Bar ends 600mm short of transom

Bottom Sheet to Chine section (underside)

Fillet (continuous)

3 2 Con Outside ‐ Tacked before welding ‐ weld after bot sheet and chine section fitted ‐ Done while hull upside down

‐ Ensure no under‐cut. ‐ Ensure inside well tacked at max 100 ctrs Prior to welding

Side Sheet & Gunwale section (underside)

Fillet (continuous)

3 2 Con Outside Side

‐ Tacked before welding ‐ weld after side sheet and gunwale section fitted ‐ Done while hull upside down


Frames 4, 6 & 8 (Panel to side)

D58‐T2‐22 Fillet (stitch) 3 2 40 225 ‐ Tack prior to welding ‐Wet cool with rag as welding ‐ allow to cool between welds


Tank Bay sides to Bot sheet

Fillet (stitch staggered)

3 2 40 225



Tank Bay sides to frames


3 2 40 225



Tank Bay sides to Frames, (ends)


3 2 40 225



Tank Bay sides to Tank Bay bottom,.

D58‐T2‐ 24 & 25

Fillet (continuous)

3 2 Con Inside corners

‐ weld after tank bay bottom sheets fitted

‐ Ensure no under‐cut. ‐ Seal weld

Tank Bay bottom to ends (frames)

Fillet (continuous)

3 2 Con Inside corners

‐ Tacked prior to welding ‐ weld after tank bay bottom sheets fitted

‐ Ensure no under‐cut. ‐ Ensure compartment seal welded

Longitudinal Floor Stringers to Frames


3 2 Con Both Sides

‐ Let one side cool before welding other

‐ Ensure no under‐cut. ‐ Both sides of frame ‐ No weld on top or bot of Floor Stringer

Transverse Floor Stringers


3 2 Con Both Sides


‐ Ensure no under‐cut. ‐ Both sides of longitudinal floor stringers ‐ Both sides of transverse floor stringers ‐ No weld on top or bot of Floor Stringer

Pod Floor Stiffeners D58‐T2‐26 Fillet (continuous)

3 2 Con Both Sides


‐ Ensure no under‐cut. ‐ Both sides of longitudinal floor stringers against pod & transom wall ‐ Both sides of transverse floor stringers




Leg Length (mm)



Max Spacing (mm)


Surveyors Signature

‐ No weld on top or bot of Floor Stringer Pod Floor sheet D58‐T2‐26

Fillet

(continuous) 3 2 Con Both

Sides (ends)

‐ Tack prior to welding


Pod Floor sheet D58‐T2‐26

Slot Welds 3 2 100 300 ‐ Tack prior to welding ‐ Used to Hold floor down in place

25mm Floor Support Tubes


3 2 Con Both Sides


‐ Ensure no under‐cut. ‐Tube welded to side of RHS ‐Tube welded to side of ½ Frame

Cockpit floor (Floor to RHS Stringers)

D58‐T2‐43& 44

Slot Welds 3 2 100 300 ‐ Tack prior to welding

‐ Used to Hold floor down in place

Cockpit floor (Floor to sides)

D58‐T2‐43 & 44

Fillet (continuous)

3 2 Con Top side to seal

‐ Tack prior to welding ‐Wet cool with rag as welding ‐Sequence weld at max 350mm length per sequence


Cockpit floor (Floor to floor & RHS) (Tank bay)

D58‐T2‐43 & 44

Fillet (continuous)

3 2 Con Top side to seal

‐ Tack prior to welding ‐ Allow to cool between welds ‐ Clamp with weight on edges edges


Gunwale Support Bot D58‐T2‐58

Fillet (continuous)

3 2 Con Both Sides


‐ Ensure no under‐cut. ‐ Leave back of SHS un welded for drainage

Gunwale Support to Side sheet & top

D58‐T2‐58


3 2 40 225

‐ Tack prior to welding ‐Wet cool with rag as welding


Transom shelves to side panels & internal shelf all round

D58‐T2‐32,& 33

Fillet (stitch) 3 2 40 225 ‐ Tack prior to welding ‐Wet cool with rag as welding ‐ allow to cool between welds


Transom side shelves to transom wall

Fillet (stitch) 3 2 40 225 ‐ Tack prior to welding ‐ Allow to cool between welds


Aft Locker to Transom wall

D58‐T2‐16,& 36

Fillet (continuous)

3 2 Con Outside

‐ Tacked before welding ‐ Seal weld ‐ Leave bottom notched corner un welded

‐ Ensure no under‐cut. ‐ Ensure well tacked inside at max 100 ctrs Prior to welding

Aft Locker top (Gunwale)

D58‐T2‐36

Fillet (continuous)

3 2 Con Outside

‐ Tacked before welding ‐ Seal weld

‐ Ensure no under‐cut. ‐ Ensure well tacked inside at max 100 ctrs Prior to welding ‐TIG Welded (would be better)

Aft Locker to Cockpit floor

D58‐T2‐36, 43 & 44

Fillet (continuous)

3 2 Con Outside


‐ Ensure no under‐cut. ‐ Ensure well tacked inside at max 100 ctrs Prior to welding

Side Shelf to side D58‐T2‐32 & 33


3 2 40 225



Side Shelf to Gunwale D58‐T2‐32, Fillet (stitch 3 2 40 225 ‐ Tack prior to welding ‐ Ensure no under‐cut.




Leg Length (mm)



Max Spacing (mm)


Surveyors Signature

stiffeners & other Side Shelves

33 & 58

staggered) ‐Wet cool with rag as welding

Side Sheet to Chine section (Top side)

Fillet (continuous)

3 2 Con Outside ‐ Tacked before welding ‐ weld after bot sheet and chine section fitted ‐ Done while hull right way up


Side Sheet & Gunwale section (Top side)

Fillet (continuous)

3 2 Con Outside Side

‐ Tacked before welding ‐ weld after side sheet and gunwale section fitted ‐ Done while hull right way up


Transom Infill & Slopping Panels

D58‐T2‐27

Fillet (continuous)

3 2 Con Outside Top & Side

‐ Tacked before welding ‐ weld after side sheet and gunwale section fitted

‐ Ensure no under‐cut. ‐ Ensure well tacked at max 100 ctrs Prior to welding ‐ TIG Welded

Engine Well D58‐T2‐29

Fillet (continuous)

3 2 Con Outside


‐ Ensure no under‐cut. ‐ Ensure well tacked at max 100 ctrs Prior to welding ‐ TIG Welded

Bow Spite D58‐T2‐39 & 40

Fillet (continuous)

3 2 Con Outside


‐ Ensure no under‐cut. ‐ Ensure well tacked at max 100 ctrs Prior to welding ‐TIG Welded (would be better)

Instrument Panel Dash bulkhead

D58‐T2‐49 & 57

Fillet (continuous)

3 2 Con Outside



Anchor Well to Gunwale

Fillet (continuous)

3 2 Con inside


‐ Ensure no under‐cut. ‐ Ensure well tacked at max 100 ctrs Prior to welding

Anchor Well to Cabin sides

Fillet (continuous)

3 2 Con inside


‐ Ensure no under‐cut. ‐ Ensure well tacked at max 100 ctrs Prior to welding

Anchor Well to Cabin Bonet

Fillet (stitched)

3 2 40 225



Cabin Stiffeners to outside sheeting

D58‐T2‐57


3 2 40 225



Anchor Well Bulkhead to side sheet

D58‐T2‐ 54


3 2 40 225

‐ Tack prior to welding ‐ Ensure no under‐cut.

Cabin nose plate Stiffeners to Stiffeners


3 2 Con Both Sides


‐ Ensure no under‐cut. ‐ Weld sides only

Cabin Sides to Bonet D58‐T2‐47 & 48

Fillet (continuous)

3 2 Con Outside


‐ Ensure no under‐cut. ‐ Ensure well tacked inside at max 100 ctrs ‐Prior to welding




Leg Length (mm)



Max Spacing (mm)


Surveyors Signature

‐TIG Welded (would be better) Cabin Sides to Gunwale

D58‐T2‐47 & 48

Fillet (continuous)

3 2 Con Outside


‐ Ensure no under‐cut. ‐ Ensure well tacked inside at max 100 ctrs ‐Prior to welding ‐MIG Weld

Dash Panel to Bonet & Cabin Side (including cabin window sills)

D58‐T2‐48, 49 & 50

Fillet (continuous)

3 2 Con Outside



Dash Panel to Dash Bulkhead Panel

D58‐T2‐49 & 56

Fillet (continuous)

3 2 Con Outside


‐ Ensure no under‐cut. ‐ Ensure well tacked inside at max 100 ctrs Prior to welding ‐TIG Welded (would be better)

Dash Bulkhead Panel to Side Sheet

D58‐T2‐11 & 56

Fillet (stitched)

3 2 40 225

‐ Tack prior to welding (max 100mm, inside cabin) ‐Wet cool with rag as welding


Cabin Targa bar infill & top

D58‐T2‐50

Fillet (continuous)

3 2 Con Both Sides


‐ Ensure no under‐cut. ‐ Weld sides only ‐TIG Welded (would be better)

Bow Rails & Hand Railing

Fillet (continuous)

3 2 Con Outside


‐ Ensure no under‐cut. ‐ Ensure well tacked Prior to welding ‐TIG Welded ‐Drill 3mm hole to prevent vapor pressure

Notes 1) All welding procedure are to be IAW AS/NZS 1665 2) All alloys are to be:

a. Structural Components Sheet 5083‐H321 b. Extrusions 6061‐T6 c. Non structural floor sheets 5251 d. Filler wire 5356

3) Shielding Gases to be Welding Grade Argon, (Pure). 4) Filler materials to be stored in their original containers and kept dry and out of the weather. 5) Filler materials are to be free of corrosion and impurities. 6) All materials to be store in suitable covered storage. 7) All materials of different alloy are to be segregated and identified. 8) All welders are to be qualified before commencing work

d58-t2-01 - designer boats · distortion control comments welders signature checkers signature ......

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