Deck Camber

General Discussion and Questions regarding TF72 and Ship Modelling
User avatar
thunderchild
Guest
Guest
Posts: 157
Joined: 04 Apr 2010 21:13
Fleet Base: None
My Ship Yard: U/C J246 - HMAS Fremantle (I) Bathurst Class Corvette
U/C I30 - HMAS Arunta (I) Tribal Class Destroyer
U/C AGS73 - HMAS Moresby (II) Australian Survey Vessel
U/C R68 - HMS Ocean (V) Colossus Class Aircraft Carrier
U/C 61 - HMAS Swan (I) Australian River Class Torpedo Boat Destroyer
U/C D31 - HMAS Voyager (I) V & W Class Destroyer
Location: Leith, Tasmania

Deck Camber

Postby thunderchild » 06 Apr 2010 22:21

Good Day All

I'm currently building a Bathurst Class Corvette (HMAS Fremantle (I) J246), this is the first time that I've built a semi kit with fibreglass hull. I'm having problems putting in the camber into the upper deck structures (bridge wings and rear deck house). Can anyone help me in this area.

Richard
Richard
Task Force 72, The Tasmanian Station
webadmin
Club Member
Club Member
Posts: 132
Joined: 18 Jan 2010 15:05
Fleet Base: Non Club Member
Location: Sydney

Re: Deck Camber

Postby webadmin » 10 Apr 2010 09:54

Can I ask what material you are using for the superstructure.

Cheers

Craig
:D
"Military Tactics are like unto water....just as water retains no constant shape, so in warfare there are no constant conditions".... Sun Tzu
User avatar
thunderchild
Guest
Guest
Posts: 157
Joined: 04 Apr 2010 21:13
Fleet Base: None
My Ship Yard: U/C J246 - HMAS Fremantle (I) Bathurst Class Corvette
U/C I30 - HMAS Arunta (I) Tribal Class Destroyer
U/C AGS73 - HMAS Moresby (II) Australian Survey Vessel
U/C R68 - HMS Ocean (V) Colossus Class Aircraft Carrier
U/C 61 - HMAS Swan (I) Australian River Class Torpedo Boat Destroyer
U/C D31 - HMAS Voyager (I) V & W Class Destroyer
Location: Leith, Tasmania

Re: Deck Camber

Postby thunderchild » 11 Apr 2010 20:08

Good Day Craig

I was going to use thin ply, but have now gone with a thin sheet of aluminium, it holds the curve beautifully.

Thanks
Richard
Richard
Task Force 72, The Tasmanian Station
webadmin
Club Member
Club Member
Posts: 132
Joined: 18 Jan 2010 15:05
Fleet Base: Non Club Member
Location: Sydney

Re: Deck Camber

Postby webadmin » 12 Apr 2010 01:11

Well richard whatever works is the way to go. Most of the club members use plastic for the superstructure, but I wanted to see what you were doing.

Aluminium should be fine, if it was plastic I would have suggested building curved framework to support the deck and the chamber.

Cheers

Craig :D
"Military Tactics are like unto water....just as water retains no constant shape, so in warfare there are no constant conditions".... Sun Tzu
User avatar
MikeJames
Club Member
Club Member
Posts: 3935
Joined: 20 Jan 2010 09:43
Fleet Base: Sydney
My Ship Yard: RAN DDL HMAS Kokoda
Australian Coast Guard cutter Nemesis
RAN FCPB HMAS Wollongong
German SAR Launch DGzRS Berln
SS Geest Atlas (Building)
Location: Sydney
Contact:

Re: Deck Camber

Postby MikeJames » 12 Apr 2010 21:02

You could try contacting Mark, who has built one, HMAS Toowoomba.

His known as markbsyd on the forums.

You can find him via the members tab. http://www.taskforce72.org/phpbb/memberlist.php?mode=viewprofile&u=75

Image

Image

Image

Mike
User avatar
SlatsSSN
Club Member
Club Member
Posts: 1285
Joined: 21 Jan 2010 10:25
Fleet Base: Gulf Waters
My Ship Yard: Fleet - in service and under construction

Submarines:
HMS Talent S92 - Trafalgar Class SSN.
HMS Conqueror S48 -Churchill Class SSN (Falklands 1982).

Merchants:
MS Bremen -Expedition Cruise Ship Hapag-Lloyd Cruises.
MS Christina O.
MV Titan Uranus -Mixed Cargo.
SMIT Japan Harbour Tug - (James Slater).
Vivienne Venezia - Harbour Tug.

Warships: (Under construction) -
HMS Exeter D89 -Type 42 Batch 2 (Falklands 1982).
HMS Brilliant F90 - Type 22 Batch 1 (Falklands 1982).
HMS Apollo F70 (Batch 3 Gun - Leander class Frigate).
HMS Clyde P257 - Offshore Patrol Vessel (James Slater).
HMAS Melbourne -05 FFG (2018).
HMAS Anzac -150 FFH (2020).
Location: Adelaide

Re: Deck Camber

Postby SlatsSSN » 13 Apr 2010 17:00

thunderchild wrote:Good Day Craig

I was going to use thin ply, but have now gone with a thin sheet of aluminium, it holds the curve beautifully.

Thanks
Richard


The key with decks that are (fixed) - adjoined to the hull, rather than free (part of a lift of superstructure), is the rate of expansion of the two materials.

Styrene decks fitted to GRP hulls are known to have a much higher rate of expansion than GRP. The result is cracking will occur at the point of the join.
This is more of a problem with large spaning decks, and less of a problem on smaller vessels.

Aluminum will have a much much higher rate of expansion again, over and above styrene. Depending on the surface area - you could get lucky, but I think you will find in hot conditions you might have a problem.

For deck cambers I use thin ply (2mm or less). I brace the underside with timbers in the shape of the camber using a template and coat the whole deck (both sides) in wax free polyester resin.

J
He who dies with the most toys, just dies...you can't take it with you.
User avatar
thunderchild
Guest
Guest
Posts: 157
Joined: 04 Apr 2010 21:13
Fleet Base: None
My Ship Yard: U/C J246 - HMAS Fremantle (I) Bathurst Class Corvette
U/C I30 - HMAS Arunta (I) Tribal Class Destroyer
U/C AGS73 - HMAS Moresby (II) Australian Survey Vessel
U/C R68 - HMS Ocean (V) Colossus Class Aircraft Carrier
U/C 61 - HMAS Swan (I) Australian River Class Torpedo Boat Destroyer
U/C D31 - HMAS Voyager (I) V & W Class Destroyer
Location: Leith, Tasmania

Re: Deck Camber

Postby thunderchild » 14 Apr 2010 22:28

Good Day All

The aluminium is going to be used on the outer bridge deck and wings only, which is pretty much an attached, but a free standing structure. The rest of the decks and rear deck house are going to be made from thin ply over shaped ribs (tradition style).

I haven't started building the upper deck structures yet, still working on and waiting for the lower deck fittings. I have been playing with and trying bits and pieces to see if there will work, before I actually get to the serious building side of the upper deck. I'm always open to any suggestions, and any information that will help in a successful build will be greatly appreciated.

Thank you
Richard
Richard
Task Force 72, The Tasmanian Station

Return to “General Discussion”

Who is online

Users browsing this forum: No registered users