Why still no dive acceleration difference?

[BlackBerry]

Originally Posted by Crumpp

That is a nice chart, Blackberry. Couple of things to keep in mind.

NACA 16 is a whole series of airfoils each with their own characteristics. You can make some very general statements about them but for the most part, the only characteristic that really sets them apart is the method they were derived. A method with extremely mixed results and sometimes not so very good agreement between calculator and the wind.

Gottingen is also a series of airfoils each with its own characteristics. These were derived from practical work in the wind tunnel.

http://www.aerospaceweb.org/question...ls/q0197.shtml

Once more, just as the NACA was aware and used Gottingen airfoils, so did the German designers use NACA airfoils. The Focke Wulf FW-190A uses the NACA 23015.3 at the root and NACA 23009 at the tip.

So I suggest Daidalos Team make detailed prop efficiency model.