Flat Spin?

[moot]

That's for real planes.. The AH Ta152 doesn't quite go by those rules.  Lowering nose past horizon is usually the hardest thing.  If you can do that, classic procedures apply again. 

I'm not sure if it's the case, sometimes or all the time or never, but at least some of the nose-up spins feel like the controls are inverted.

[Traveler]

That's for real planes.. The AH Ta152 doesn't quite go by those rules.  Lowering nose past horizon is usually the hardest thing.  If you can do that, classic procedures apply again. 

I'm not sure if it's the case, sometimes or all the time or never, but at least some of the nose-up spins feel like the controls are inverted.

If that's ture, then it's not an accurate model.  As I said, it recovered nicely from the power off stall,  but the power on stall and accelerated stalls it appears that the center of gravity is not the same in the aircraft. 

There are some aircraft designs that prohibit or restrict stalls from being performed.  because they result in a total loss of control,  perhaps the 152 falls into that categorty.     But if that were true, then tha loss of control would be there for power off stalls as well. 

[moot]

Sounds like you didn't get into the really stubborn tail first spin when you did power off testing.
You might be right, I tried it a few times and it does recover as easily as any other plane when you go off-power into a spin.  I need to do more testing.  It's been too long since I've gotten it into these stalls.

[kilo2]

This morning put it into a tail stall no power and the plane never recovered on its own. It fell straight back with a slight spin.

[moot]

I must've been remembering the old FM.  Out of maybe 50 tries or so, I must've gotten only 2 or 3 off-power spins nearly into that "bad" spin where the nose refuses to break below horizon.   And you're right, as soon as you start adding power before the plane is flying mostly forward again, you can shift into that "bad" spin if you don't apply power & controls just right.

It doesn't feel like I remember it.  I must be remembering the old FM's spins.  Now that I think about it I remember focusing on avoiding spins, and not going back to check if the departure side of the FM was any different, when we first got the revised FM.  So ironically, this new FM we've had for years now is much less forgiving in normal flight (we used to be able to turn and scissor with Spit IXs and N1Ks), but seems to be much more forgiving in power off spins.  The controls don't seem to ever invert and putting the plane back in line is pretty straight forward, not any more complicated than any other plane.

You can still recognize some of the shifts into the bad spin envelope, where the plane will have a single twitch like it breaches some kind of boundary.

This morning put it into a tail stall no power and the plane never recovered on its own. It fell straight back with a slight spin.

Can you describe how it started?  What you did to trigger it?

[kilo2]

I must've been remembering the old FM.  Out of maybe 50 tries or so, I must've gotten only 2 or 3 off-power spins nearly into that "bad" spin where the nose refuses to break below horizon.   And you're right, as soon as you start adding power before the plane is flying mostly forward again, you can shift into that "bad" spin if you don't apply power & controls just right.

It doesn't feel like I remember it.  I must be remembering the old FM's spins.  Now that I think about it I remember focusing on avoiding spins, and not going back to check if the departure side of the FM was any different, when we first got the revised FM.  So ironically, this new FM we've had for years now is much less forgiving in normal flight (we used to be able to turn and scissor with Spit IXs and N1Ks), but seems to be much more forgiving in power off spins.  The controls don't seem to ever invert and putting the plane back in line is pretty straight forward, not any more complicated than any other plane.

You can still recognize some of the shifts into the bad spin envelope, where the plane will have a single twitch like it breaches some kind of boundary.
Can you describe how it started?  What you did to trigger it?

Pull stick into the back left corner of the stick while at the same time full right rudder.

[moot]

How fast were you going just before spinning it?  Altitude and attitude?  I can't find any off power maneuvering that gives that unrecoverable spin.  Tried it everywhere from 50 to 300 IAS, groundwards and skywards and level.

[kilo2]

http://www.mediafire.com/?g4vm8qn5nxj5181

Here is a film.

[moot]

Were you trying to bring it out of the spin, or did you stay hands off?

[kilo2]

Hands off from the moment of the control inputs that put it into the stall..