P-39 Flaps

[[CPT]Crunch]

I'll let the various manuals and publications draw the picture on what needs correction.

And to top it off here's a track 350 MPH IAS full flap drop at over 7 Gfreeflight.2024-02-20_13-38-56_00.rar

As one can see the speed limit is 150 IAS max with gear down and G limit 2.01, a 110 inch Ilb torque shaft limit on a half horse power motor.  Currently they put rated combat flaps to shame using full flap.  Please fix at your convenience.  Thank you.

Edited February 20, 2024 by [CPT]Crunch

[Mtnbiker1998]

Honestly it bugs me that the American planes are the only ones in game with flap limitations, because they're the only ones who bothered to put limits in the manual. I somehow doubt every other countries flaps were indestructable as depicted in game, and frankly I'd rather have the consistency.

 

Besides, the last thing the P-39 as represented in game needs is MORE handicaps 

[357th_KW]

Actually requiring players to comply with published flap speed limits across the board would resolve most of the complaints of "magical" flaps.

[[CPT]Crunch]

If you do a deep study the P-39 was not to pitch it's nose up with flaps down, it was recommended only high time seasoned pilots use them for short fields take offs only during combat emergencies, and than it was half flap maximum allowed.  Otherwise use of flaps for takeoff was prohibited.  The nose became unstable pointed up at lower speeds, it was considered a bad gunnery platform due to poor tracking in a nose up shots. 

 

Some of the characteristics discovered post war in wind tunnel tests of P-39N-1 scale model were wing dihedral reversal in inverted flight, and the tail dropped below the prop stream, it was an unstable combo with power on making it prone to flat spins in inverted flight, power off it had no issues.  Directly attributed as a characteristic of it's unusually low placed flat wing and tail design placement.

 

Jan 1947 NACA Research Memorandum # A6L27  Too big to post here.