Wonderful, just wonderful! I remember three years ago almost nobody believed there would be a flying D.21 again, but now we're getting two! We're spoiled!

It's a very neat job, Orla! I've seen some of Frank and Theo's work regarding the wing and indeed, the D.21 does not have a Clark airfoil but some custom one, undefined.

Thanks Mathieu for sharing!

All good luck with building, Orla!

Daan Kaasjager