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Hi Folks

I have in mind a knotty problem. I am building Lynx by Panart. The model requires the building of the gun'ls and then removing the supports in order to accommodate the false deck. This is my first build and I am at a loss as to how to bend the false deck to fit taking into account both sheer and camber. Fortunately there is no tunblehome.

Do any of you wonderful people have any tips on how to do this?

Thanking you all in anticipation

 

Wishing you all a fair wind and following seas

Don

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HI Druxey

Yes and it has no slots for the upper "top timber" bulwarks supports which the instructions say must be removed. Hence the false deck sits on the curved deck supports and runs right up to the waterway. The problem seems to me to be how to clamp the false deck to the curved supports whilst the glue cures and sets the camber and the sheer. i hope I'm making sense

Many thanks

591dd4145004a_Bulwarksupports.thumb.jpg.9237e07556fa640fd58d922e763bbfdf.jpg

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Ah, I see your issue. Probably the best solution might be as follows: Dry fit the false deck and mark across the middle of the bulkheads. Drill holes through the deck for small brass panel pins or similar. Soak the false deck for several minutes in warm water. (Don't leave it too long, or it may delaminate!) Apply a glue such as Bondfast to the tops of the bulkheads, then lay the the deck in place. Pin down starting along the midline and working progressively towards the edges. The small pins or nails will hold the deck in place and shape while the glue sets up.

 

Good luck with the job. Let us know how it works out!

Be sure to sign up for an epic Nelson/Trafalgar project if you would like to see it made into a TV series  http://trafalgar.tv

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38 minutes ago, Rat-Fink-A-Booboo said:

Hi Druxey

Many thanks for the tip

\i was hoping to plank the deck before fitting, but I guess I'll have to forego that luxury

 

Best wishes

Don

 

 

NO!!!! Do not plank the false deck first.  Wait until the false deck, whether you use one piece or several, is securely in place BEFORE you plank. 

Chuck Seiler
San Diego Ship Modelers Guild
Nautical Research Guild

 
Current Build:: Colonial Schooner SULTANA (scratch from Model Expo Plans), Hanseatic Cog Wutender Hund, John Smith Shallop
Completed:  Missouri Riverboat FAR WEST (1876) Scratch, 1776 Gunboat PHILADELPHIA (Scratch 1/4 scale-Model Shipways plans)

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If you use hitch chucks with the pins - more force on the hold down is possible

and that makes for a stronger bond.

 

A hitch chuck is a small piece of scrap wood that you drill a hole thru and

have between the head of the pin and the wood that you are clamping. 

The pin can be tapped and bend getting more force.  The chock can be

split off if necessary to grip the pin to remove it.  I mostly use a a curved

Kelly clamp ( hemostat ) to remove the pins.  Resting on a piece of planking,

the curved clamp makes a good prise

NRG member 50 years

 

Current:  

NMS

HMS Ajax 1767 - 74-gun 3rd rate - 1:192 POF exploration - works but too intense -no margin for error

HMS Centurion 1732 - 60-gun 4th rate - POF Navall Timber framing

HMS Beagle 1831 refiit  10-gun brig with a small mizzen - POF Navall (ish) Timber framing

The U.S. Ex. Ex. 1838-1842
Flying Fish 1838  pilot schooner - POF framed - ready for stern timbers
Porpose II  1836  brigantine/brig - POF framed - ready for hawse and stern timbers
Vincennes  1825  Sloop-of-War  - POF timbers assembled, need shaping
Peacock  1828  Sloop-of -War  - POF timbers ready for assembly
Sea Gull  1838  pilot schooner - POF timbers ready for assembly
Relief  1835 packet hull USN ship - POF timbers ready for assembly

Other

Portsmouth  1843  Sloop-of-War  - POF timbers ready for assembly
Le Commerce de Marseilles  1788   118 cannons - POF framed

La Renommee 1744 Frigate - POF framed - ready for hawse and stern timbers

 

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Don,

 

Have you thought of forgoing the plywood false deck altogether and just plank the deck as it is done on other models and the real vessel?  You may have to use planks that are a bit thicker to account for the thickness of the plywood.   

 

Allan

PLEASE take 30 SECONDS and sign up for the epic Nelson/Trafalgar project if you would like to see it made into a TV series.   Click on http://trafalgar.tv   There is no cost other than the 30 seconds of your time.  THANK YOU

 

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Hi Druxey, Jaager, Allan, Jaxboat

 

Woah!

Thanks everybody - slammed on the anchors just in time by the sound of things :)

 

I'd love to plank directly onto the deck supports, but I don't trust them to be accurate. I figured that the false deck would find its own 'true' curves if fixed amidships.

The pinning and nailing sounds like the best option - the planking will have to wait and the scarfing and nibbing will just be a bit more fiddly around the waterways.

 

As always wishing you all fair winds and a following sea.

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Don,

 

I think the bigger problem is what you had in your first post - how to bend plywood in two directions.  Plywood only likes to bend in one direction.   I think one-piece decks only work for short decks, not where the deck runs the entire length. I see two options:

  1. Rip the false deck in to narrow strips, perhaps about 10 mm wide. You'll lose some material, ending up with gaps and there will be a bit of a kink at the joints, but that can be sanded down and covered by the final planking.  You could also add filler strips. This has the added benefit that you don't have to fit the whole deck at once, and you can get some clamps under the deck beams.   With a little bit of planning, you can make the first strip near the rail fit between the "ribs".
  2. Make some kerf-cuts on the underside of the false deck.  This may give it enough flexibility to bend in two directions. However, I don't have much hope for this idea.

Option 1, seems best to me:  it will allow you to fair the height of the deck beams as you go, if needed.  

Bruce

Stay Sharp - Stay Safe

Judgement comes from experience:  experience comes from poor judgement.

  • USS Constitution: Scratch build solid hull 1:96 scale
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With all due respect to lehmann, many years ago I used the method I described on a model for my daughter. It worked fine. Of course, if the ply is too thick, it's another matter, but I don't think kit maker supply wood any thicker than they need to!

Be sure to sign up for an epic Nelson/Trafalgar project if you would like to see it made into a TV series  http://trafalgar.tv

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Another armchair experiment ( denken experimenten ) :

The area to be covered by a plywood sub-deck is not accurately represented by a 2D Waterline plan. There is a depth dimension that increases the area to be covered.

Thought: using thick paper, the precise area could be had by using it to cover the area.  Then,  why not thin hard poster board.  It is flexible, yet stiff.

THEN:  Why not try using the poster board as the actual sub-deck?  Once in place, give it a coat of thinned PVA and let it dry.  This will compensate for the too far apart

mold supports and the PVA should stiffen up the poster board.  Then a veneer of Hard Maple in planks can be laid.  The veneer can be cut using a steel edge and sharp

edged tool.  No saw would be needed.

NRG member 50 years

 

Current:  

NMS

HMS Ajax 1767 - 74-gun 3rd rate - 1:192 POF exploration - works but too intense -no margin for error

HMS Centurion 1732 - 60-gun 4th rate - POF Navall Timber framing

HMS Beagle 1831 refiit  10-gun brig with a small mizzen - POF Navall (ish) Timber framing

The U.S. Ex. Ex. 1838-1842
Flying Fish 1838  pilot schooner - POF framed - ready for stern timbers
Porpose II  1836  brigantine/brig - POF framed - ready for hawse and stern timbers
Vincennes  1825  Sloop-of-War  - POF timbers assembled, need shaping
Peacock  1828  Sloop-of -War  - POF timbers ready for assembly
Sea Gull  1838  pilot schooner - POF timbers ready for assembly
Relief  1835 packet hull USN ship - POF timbers ready for assembly

Other

Portsmouth  1843  Sloop-of-War  - POF timbers ready for assembly
Le Commerce de Marseilles  1788   118 cannons - POF framed

La Renommee 1744 Frigate - POF framed - ready for hawse and stern timbers

 

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Hi USS frolick

Its the title of a 1966 film that is so unbelievably bad that it's  quite good/funny.

It should have been called Rat Pfink AND Boo Boo but a typo got onto the posters and the film maker couldn't afford to put it right - the idea still makes me giggle. Oh, just bye the bye, Rat Pfink is a superhero - I'm sure you get the picture :-)

 

wishing everyone fair winds and a following sea

Don

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