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Old 15th October 2011 | 09:03
  #63 (permalink)  
mad_jock
 
Joined: May 2001
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The reduction in AoA can be less than 1 deg its just enough to unstall.

And you are right an inadvertent stall is multiple cockups. Which is why I tend to bang on about attitudes and knowing what's going to get you into trouble. You should be able to see that your approaching the stall by looking out the window and the control feel without any reference to instruments.

Windsheer is a special case as we all know.

My types procedure is to purposely pitch to just before the stall, full power you play with the pitch to just keep the stick shaker occasionally going off and leave everything as it is. Which is significantly different to the stall recovery which calls you getting rid of any drag falp and gear ASAP. This for us would entail a pitch up of about 8 degrees from the approach attitude.

And the other stall which we are worrying about when the freezing level is low is the tail stall and the recovery for that is pull back and deselect what ever you have just selected. But to be able to spot you have a tail stall instead of a wing stall you have to know that your wing isn't stalled.

Pace I don't see any problems at all with the procedure you have been given. The nose on the horizon will mean there is a reduction in AoA but its just a limited max pitch down which is no bad thing. The amount of wellie is neither here nor there and is type dependent. What might be a ball hair on your type might be a fist full on others.

And your statement that this procedure is only for the older models leads me to suspect that the boffins at cessna have redesigned the wing to get rid of this feature of ball hair or huge other issues.

There has been quite large differences in certain procedures across the atlantic for quite a few years, the tail falling the airbus just after 9/11 started the process for the flight upset recovery but it still not there. There are still some FAA pilots that hold that you use boots full of rudder to lift the wing. Again in stalling we are taught as has been discussed but the FAA have taught to power out with less than 100ft.

With my Engineers hat on the FAA power out is crazy it relys on the fact that the pilot can't but help reduce AoA because of the forces involved and the aircraft wanting to unstall itself despite what the pilot does.

I can sort of see the point of minimal height lose when your landing configured from a fully developed, which to me gets into windshear training. But clean 200-300 ft is fine.

Last edited by mad_jock; 15th October 2011 at 09:22.
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