Thread: AOA indicator
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Old May 2nd 16, 01:36 AM posted to rec.aviation.soaring
2G
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Default AOA indicator

On Saturday, April 30, 2016 at 7:07:40 AM UTC-7, kirk.stant wrote:
On Friday, April 29, 2016 at 6:18:00 PM UTC-5, 2G wrote:

The MOST important thing to do is to maintain coordinated flight. Maybe you could put an audible warning on the yaw string!

Tom


I don't agree. The MOST important thing is to not exceed stalling AOA. Below that, yaw (within limits) adds drag (or may help a bit - see discussions about slipping turns while thermalling) and may be less efficient; but you can still control your glider - exceed the critical AOA, and you are a passenger until you reduce it.

Airspeed indicators are required (which are indirect AOA indicators). Yaw strings or slip balls are not.

Kirk
66


Well, I definitely take issue with "ASI are indirect AOA indicators". This falls into the category of "it either is or it isn't" category.

I am not dismissing AOA indicators since I have never flown with one. I think I will put one on for my next flight (a yaw string taped to the side of the canopy).

You are very dismissive of the roll of gusts: a former FAA administrator was killed by one (and his inability to deal with it). You also did not comment on my comment about not being able to stall a glider above a 30 degree bank angle. Recovering from a straight-ahead stall is a ho-hum event at best; dealing with stall-spins is a totally different animal.

Tom