Description of the issue:
When flying above 80knts and rasing the flaps to the -1 position speed will rapidly increase and even with almost 0 throttle speed will be higher than 140knts. Seems like negative flap angle cases negative drag = forward thrust.
If applicable, which aircraft is experiencing this issue:
Pipistrel Virus SW121
[PC Only] Did you remove all your community mods/add-ons? If yes, are you still experiencing the issue?
yes
FREQUENCY OF ISSUE
How often does this occur for you (Example: Just once, every time on sim load, intermittently)?
every time
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue:
1.Fly Pipistrel Virus SW121 at any altitude
2. Reach 80+ knots
2. Set flaps fully up to -1 position (-5° (up))
3. Aircraft rapidly accelerates
WARNING! Virus SW is sensitive to correct flap settings. To maintain excellent and safe flight
performance it is important to set flaps according to airspeed. As the pilot you must know that
the higher the speed the greater the force on the flaperons. To prevent overstressing the flaper
ons it is of vital importance to always fly at the correct flap setting as you may otherwise damage
the flaperons controls’ inner structure.
At speeds in excess of VNE, even at negative flap setting this may lead to flutter, loss of control
over aircraft, serious injury and even loss of life
This has nothing to do with my issue… According to the official Pipistrel Virus SW pilot manual the VNE is 163 knots. Also, you should be able to use the -5° flaps between 50 and 163 knots without damage. Above 80 konts you should set flaps to -5°, and if you do this the plane will start accelerating even if you decrease the throttle to 25%. You should try it in sim.