Something with the P-40's flaps

[frank3]

Today, I lost one flap to enemy fire. At that time, I had my flaps fully deployed.

When I retracted them because of the extreme torque coming from the other flap, I still experienced torque from the damaged flap!

I think the 'system' remembers that the flap should've been lowered, so even after it was gone, it produced drag.

Is this a bug?

[croduh]

What p40 did you use, i used b and i think i had the same problem

[Octavius]

Damaged flaps supposedly model it 'stuck' in whatever position it was prior to damage.  I'd rather have no flap effects after it has been damaged and visually disappeared than the current system.  

You must not have had them fully deployed when you lost one though.  One damaged flap when both flaps are fully deployed will not give a net torque unless the undamaged flap increases or decreases deflection.

First thing damaged on a P40 is a flap or a gun... never fails.

[frank3]

Well actually I did have them fully deployed.

I got strafed after landing, loosing my right flap, when I took off again, I experienced the torque.

You're right about the flap/gun damage, I've had both of my flaps shot in each out of 3 runs!

[Gianlupo]

Originally posted by Octavius

One damaged flap when both flaps are fully deployed will not give a net torque unless the undamaged flap increases or decreases deflection.

What do you exactly mean, Octavius? I had the same problem Frank experienced, while flying a Ki84, and I recall that I retracted the remaining flap because I was rolling (not torque, Frank ) in the direction of the missing flap. As you said, and as I discovered with great disappointment, I kept rolling, just as the flap wasn't retracted.... and I kept rolling in the same direction. But, the point is, I was rolling before and after retracting the remaining flap.

I should have it on film, I'll need a while to find it, but will do and check if I recall correctly.

[Octavius]

Ok, hypothetical situation:

While flying with undamaged flaps deployed at two notches, your right flap is damaged and becomes stuck according to AH flap damage rules.  

If you continue flying with the other (left) flap deployed two notches, you should not experience any net torque.

Retracting your working flap (in this case your left flap and decreasing flap deflection), your plane will experience a net torque causing a roll to the left.  Deploying more flap will cause a roll to the right.  

But in frank's case, since he was already at full flaps when damaged, he will only see a net torque and begin to roll (without aileron input) once he retracts the undamaged flap.  He should not have experienced a torque if he left the flaps in the position he had at the time of damage... which is why I thought he must not have been fully deployed... cos thats weird.

If you arent seeing something similar to that, then perhaps you have found a bug... film it and you know the rest.

[Gianlupo]

I've filmed it, I always film (I have something as insane as 3+ Gb of clips...), finding it will be more tough... who knows maybe it's just a matter of bad memory... I'll dig in.

Thanks for the clarification.

[frank3]

Originally posted by Octavius
Ok, hypothetical situation:

While flying with undamaged flaps deployed at two notches, your right flap is damaged and becomes stuck according to AH flap damage rules.  

If you continue flying with the other (left) flap deployed two notches, you should not experience any net torque.

Retracting your working flap (in this case your left flap and decreasing flap deflection), your plane will experience a net torque causing a roll to the left.  Deploying more flap will cause a roll to the right.  

But in frank's case, since he was already at full flaps when damaged, he will only see a net torque and begin to roll (without aileron input) once he retracts the undamaged flap.  He should not have experienced a torque if he left the flaps in the position he had at the time of damage... which is why I thought he must not have been fully deployed... cos thats weird.

You're right Octavius, when I lowered my flaps, the roll was stopped.

What is strange however, you say the flap gets stuck when damaged (if lowered)
But, the flap was completely missing! At least I didn't see it