by erik » Sun Apr 17, 2016 9:10 am
Necolatis wrote in Sun Apr 17, 2016 2:08 am:Noticed some problems with the JSBSIM F-16:
Max Roll-rateI think its limited now to around 181 degs/sec. From the open sources I could gather 240 Deg/s seems to be more in line with its capabilities, especially also considering the F-18 can do 225 degs/s.
This might have something to do with some control law I'm not aware of. I've noticed that pulling up before rolling increases the roll rate considerably.
Pitch oscillations
When flying around mach 1.2 at 5000 ft it starts heavy pitch oscillations.
I don't think I've seen that one before.
Trouble reaching 9G at corner speed
It seems to more be around 5-7 G at around 400 KT around 6000-7000 ft.
Note that the F-16 is not able to pull 9G always at any time, or continuous. It heavily depends on it's velocity.
It might be a good idea to recalibrate the pid controllers though. They are from quite some versions of JSBSim ago.
Erik
Erik
Current: Parachutist, Paraglider, Pterosaur, Pilatus PC-9M and variants, ERCO Ercoupe, Fokker Dr.1, Fokker 50, Fokker 100
Less active: Cessna T-37, T-38, Santa Claus. Previous: General Dynamics F-16. Worked on: Wright Flyer