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Project-Ex

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DaveD

Well-Known Member
Joined
May 28, 2010
Messages
375
Location
Perth, Western Australia
OK, I’ve finally managed to wean myself off constantly reading this forum, and managed to do some actual design work!!!

Time to unveil “Project-Ex”, (reflecting the likely effect on my marriage)!!
ProjEx Back.jpegProjEx Top Right.jpgProjEx Bottom Right.jpgProjEx Back Top Left.jpgProjEx Top.jpegProjEx Left.jpegProjEx Front.jpeg

It’s still early days so don’t be mislead by the shiny pictures, I’ve only really done some initial sizing. Next job is to do some more thorough weight estimations so I can get a better idea of the C of G.

I’m looking at foam cored composite construction, strip plank “1-off” construction method for the fuselage. 2 spar wings (probably pultruded carbon fibre rod spar caps). Weight considerations will probably decide whether I go for a strut braced wing or not. I’m having a big internal debate about how to break down the parts, my current idea being a 3 piece wing, tail booms & rudders combined and a separate horizontal stabilizer...

Seat: 2 (tandem)
Span: 9.8m
Length: 6.6m
Main Aerofoil: GA37A315 (I’m undecided whether to stick with the rectangular wing for simplicity, or put in tapered outer panels)
Tail: NACA0015 (the latest incarnation actually has some rudder area below the tail booms but it’s not in the 3D model yet, so not in the pictures)
Engine: Mazda Renesis Rotary Conversion ~160Hp
MAUW: 600kg (or less!!!)
Stall: < 45Kt Cruise: Hopefully Around 120-130 Kt (lots of calcs still to do)

Cheers
Dave
 
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