Airfoil choice

[mravell]

I'm currently modelling an F23 in CAD (Rhino) for slope soaring duties.

In order to maintain the fuselage shape I would need to thin the wing at the root quite considerably.

Does anyone on this list have experience that they would like to share about airfoil choice on jets?

I'd tentatively identified MH32 as the airfoil that I will use.

Should I modify the model to take the full 8.7% thickness or thin the airfoil by almost half in order to fit it to the plane?

This is the first time I've tried something scale for the slope. The fuse that I have trialled (in CAD) with a full thickness airfoil doesn't look bad but given the subject it is obviously not scale.

I'm guessing that this is a constant problem for PSSA'ers.

Any comments?

BTW, attached are a coupl eof screenshots to give you an idea where I am at. Scratch that. How do you attach images on this forum?

[Matt Jones]

I've got a Haoye F-18 that I fly off the slope. To keep it reasonably scale they used a flat bottom, very thin section and it works fine so I'd do that.

[stevew]

Personally I'd run the MH32 section at 8%, I use it on my Bearcat my Fouga 90 and my Hurricane all are big models and the foil has been perfect.