a single seater with 300 crusing - interesting, if it will be a piston wooden DB-5 - it is for meHi, I can probably answer than one as I live in the same town as the designer. As we walked to the hangar when I bought my plans, he said something along these lines "Everybody keep pestering me with a 4 places aircraft but they all fly alone, this is b***s***. They should build a single seater, we could do a little screamer, it would do 300 km/h in cruise, easy"
I kind of remember him saying he had some drawing for a single seat fuselage...
Birch is stronger than 30% to okoume. 1,2mm birch shouldn't have problems with warping. I don't think birch surface is problem.... As for the birch plywood, it's 30% heavier/stronger than okoume, so if you go down in thickness to compensate (like 1mm instead of 1.2mm), you will have problem with surface warping, especially on the wings. There is other places where it's not a concern though so you can swap, like in the fuselage...
what‘’s the sheet size?Hi VIJo
I am 60% through building a Gazaile.
Plywood is Okoume.
5 sheets 1.2mm
4 sheets 1.6mm
3 sheets 2mm
1 sheet 2.5mm
1 sheet 18mm
When you buy your plans you can join a constructors group and buy all metal parts ,carbon spar caps ,blown canopy
and belt reduction unit for motor.
Molds for making parts are available for hire in France.
There are two wing choices, one for the Euro ULM catagory and and one for the "avion". The latter is smaller all around and uses flaperons. I don't think Serge defines (names) either of the sections.