Originally Posted by Pilot Positive
Good report PBL, where did you find it?
An aerodynamicist with whom I work put me on to it. I understand the report is quite well-known amongst British aerodynamicists, because of the light it sheds on how appropriate certification requirements were/are.
There is another set of older data from the U.S. about what happens *inside* thunderstorms at
http://naca.central.cranfield.ac.uk/...eport-1285.pdf
This one is over half a century old!
PBL