ORIGINAL: hugger-4641
let's try again with the pic rotated!
Bingo! Especially for TLAR. Better yet, no need to even do Rx2 (R=the control surface average chord), just do chord times pi and divide by 180. Works out the same and saves a step! No need for a protractor, calculator, or trig tables (old school). Been doing it for years and like Minn says, it always "TLAR"!
hook