contrails
Posts: 1312
Joined: Fri Oct 13, 2000 11:53 pm

What Is An "Alpha Gadget"

Thu Oct 25, 2001 1:38 am

When I was a kid I monitored what I presumed to be a USAF excercise on my shortwave radio (I've forgotten how I came to that conclusion, but there must have been some evidence to support it). The pilots kept referring to their "alpha gadgets", each asking the other if it was on, one repeating "turn on your alpha gadget".

Anyone have an idea what they could have been referring to? This has intrigued me ever since that cold winter night long ago.

Thanks!
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Lucifer
Posts: 105
Joined: Thu Mar 08, 2001 7:22 pm

RE: What Is An "Alpha Gadget"

Thu Oct 25, 2001 4:32 am

Alpha refers to angle of attack. Aircraft can either fly by reference to a speed and the vertical descent rate, or as is more useful on delta-winged aircraft refer to and angle of attack gauge or alpha gauge. This is the angle at which the mean chord of the wing is offset from the airflow, and maintaining a fixed alpha assists in maintaining a set descent path eg on final approach.

Otherwise it is a code for something you shouldn't know about.

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