12-07-2019, 04:31 PM
Hi Howard
18 mm of plywood, + padding + fabric, even with large dia holes in it will be
quite a lot heavier than an alloy construction.
I have an angle iron bulkhead like yours but the rest
of my GE Cup has 16mm ply bulkheads, 1” ash stringers
And 8 mm ply on the box section sills. Outer skin all
16 or 18 swg aluminium. Full length Wings are also aluminium .
The 4 wings weighed 1kg!!!
What type of special are you making ,
? Like a Cambridge or similar? Flat tail or pointed tail?
I’d go for a new thread of your own.
I’ve had 45,000 views in one year!!!!!
By 50,000 I hope to report on going places in it....
Regards
Bill G
Aka AllAlloyCup
18 mm of plywood, + padding + fabric, even with large dia holes in it will be
quite a lot heavier than an alloy construction.
I have an angle iron bulkhead like yours but the rest
of my GE Cup has 16mm ply bulkheads, 1” ash stringers
And 8 mm ply on the box section sills. Outer skin all
16 or 18 swg aluminium. Full length Wings are also aluminium .
The 4 wings weighed 1kg!!!
What type of special are you making ,
? Like a Cambridge or similar? Flat tail or pointed tail?
I’d go for a new thread of your own.
I’ve had 45,000 views in one year!!!!!
By 50,000 I hope to report on going places in it....
Regards
Bill G
Aka AllAlloyCup
Based near the Scottish Border,