Relaxed static stability F-16 v SU-27 CP aft CG gyro design
I’ve heard that the F-16 utilizes fly by wire in a far aft CG position and this planes stability is referred to as having “relaxed static stability”
CG is center of gravity
CP is center of pressure
CG is still forward of CP on the F-16. CG is way back there, granted that.
now I was watching the 2 plus hour documentary on the su-27 titled something like the greatest fighter in the world and they discuss that their designers moved the CG aft of the CP!
is this true?
it makes sense too, that CP moves and CG does not, that supersonic flight transitions CP further aft and becomes more inherently stable.
see 1h 08min 30sec Here:
U tube extension /watch?v=KFkVDZWwK1w
(I’m too new to post links according to forum rules)
Looks like the su-27 has negatively static stability. They claim that CP is forward of CG which is akin to controlling a dart thrown at a dartboard backwards! (Tail first).
is it unreasonable to design and fly an rc plane like the full scale F-16 or su-27 using a gyro?
Andy