Stability and Control characteristics of the Early Mark Spitfires

[MiG-3U]

Originally Posted by Crumpp

Slow down and tell me where you get the 78.54 MAC on that sheet.

Report RM2535

http://aerade.cranfield.ac.uk/ara/dl...rc/rm/2535.pdf

and (wing and datum point are the same on the Spitfire IX)

http://www.spitfireperformance.com/ab197datum.gif

Originally Posted by Crumpp

The reason the NACA used percentage MAC is because they did their own weight and balance analysis.

The ONLY number that is comparible...is the percentage MAC!!!

They gave exact reference point, wing leading edge at the root and they (NACA) admited that their measurements for MAC maybe somewhat in error.

Originally Posted by Crumpp

WTF, are we going down the rabbit hole like your "superchargers see pressure altitude"???

Well, just like in the other discussion, you ignore the data (USAF handbook) which does not support you and post some irrelevant stuff or accusations.

I don't play that game, let the people see the data and decide themselves.