How would a non-aerodynamics engineer determine this for any air plane without using the old website that showed it (think it was soda's site)? Just like to know if it is easy to determine dynamically (in-flight).
Thanks.
You could use Gonzoville
http://www.gonzoville.com/charts/It is still limited by your ability to perform the tests, and your ability to turn, Badboy's bootstrap is as he states a rough guide, and only as good as the data a pilot can enter or their ability, but very interesting non the less.
Gonzoville also states the aircrafts typical loadout but not the fuel, or if they used wep while making the turns. Weight and wep makes a big big difference to a plane turning. Gonzoville's test also do not state if the fuel burn is set to 0.
Using Badboy's method on the deck with fuel burn at 0
Example FW190 D-9 Full fuel, no wep, full ammo and no flaps has a turn raduis of 949 ft. A much worse result than Gonzoville's 846 ft effort by MOSQ.
Switch on the wep with full ammo no flaps and 25 percent fuel, and that changes to 814 ft a big big difference. It is now better than the 846 ft listed on Gonzoville by MOSQ.
So in short it still comes down to pilot skill in a turn, I think only HTC could perform that kind of turn test perfectly??