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Comments on Design (Any Catia USers?)

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berridos

Well-Known Member
Joined
Oct 10, 2009
Messages
1,164
Location
madrid
Hi Everybody

Would appreciate any critics on my initial design.

As you can notice I am a CATIA beginner. Below the wing the fuselage surface shows wrinkles I am not able to correct.
Any solutions?
I am drawing the skin with Multi surface sections, lots of bulkheads (three under the wing with straight vertical lines below the wing) and three guides (top guide, lower guide and a side guide that is a straight line under the wing)

Anybody thinks the tail is nonsense?

I thought that calculating the tail boundary layer thickness and investigating at which angle the horizontal and vertical boundary layer start reducing their mutual interference I can aim at fairly drag competitive tail design if I use a ample curvature at the intersection.
Does such a tail only make sense for twin engine planes?.
I thought I could build the whole tail in a single mold bending graphlite rod around the intersection corners and get a reasonable weight for the whole tail.
The tail incidence will be variable in flight.

I love the idea of attaching the landing gear to the engine mount making the mechanics of a suspension system fairly easy. Do you think the gear legs are bend backwards too strongly? The bend is imposed by the location of the firewall.
 

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