Ally Bonnet

[Tilly819]

Hi all, quick couple of questions before i order some metal.

What thickness and grade ally have people been using for the bonnet?
what are you using to form it around for the correct rads?
And what are you using to rest it on so it lies flush with the nose and scuttle, seems to need lifting alot at the scuttle end to make it flush?

Chears
quick reply would be great so i can order some metal today so i can get it this week since im planning on putting it on the booth for etch and primer this weekend.

Thanks again
Tilly

[TSM Locost]

Hi Tilly. For my locost bonnet i used 1.2mm grade 1050 from asc metals in Peterborough. As a former i used a length of plastic soil pipe 150 dia. 25mm sponge rubbery foam from RS comp.

[dogwood]

I did the sams as Mike.

Just take your time, bend fit bend fit bend ..etc etc

I used some draught excluder on the nosecone and scuttle.
Then some u trim on the bonnet edges to get the correct height.

David

[Tilly819]

great stuff, have ordered a sheet of 1.2mm 1050 from smiths this morning and some edge trim and self adhisive rubber D from CBS

thanks guys

Tilly

[Tilly819]

ooh also, have people turned the bottem edge back on itself by 90 deg on ither side or does it just come down and get cut off

Tilly

[dogwood]

I bent mine back.
makes a nice flat edge for the bonet to sit on the rails

The joggle bit on both the nosecone and scuttle was made to suit neoprene foamy stuff that came from Trident racing supplies at Silverstone circuit..off the top of my head it's half inch thick

[slimtater]

Bending the bonnet? Can't remember if that was the lamp-post or gas cylinder!
Mine is folded 90 deg and it makes it a nice tight fit.