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Old 29th Apr 2007, 10:11
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GLOC

More and more I see this expression appearing. When did it come into regular useage? Why is it not GILOC?

The older ones amongst us are familiar with black/grey outs+tunnel vision (+the feelings of 'perfect peace' during these events ), but this, to me, is a 'newbie'.
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Old 29th Apr 2007, 10:21
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BOAC: I don't know when it came into regular usage, but my first memory of seeing the expression was in connection with one of the F20 Tigershark accidents, which was early 1985 IIRC.
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Old 29th Apr 2007, 10:41
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Oh good! Only 22 years behind now
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Old 29th Apr 2007, 17:28
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It came into common usage with the F-16 and its 9 G capability. The airplane turned out to be able to take the Gs better than some of the pilots.
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Old 29th Apr 2007, 17:57
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Nothing new there, then.

Mind you, I'm greying out now if the co-pilot levels from a descent in a turn at the same time.
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Old 2nd May 2007, 14:28
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On-set rate

Concerning the F-16 and G's, wasn't it the F-16's "on-set" rate (vs. the actual g-loading) that was determined to make that jet different?
Most fighters at that time required care to not over-g the jet. The F-16, however, had the computer to protect from an over-g in most scenarios. So, there you are, at the merge, and you yank as hard as you can because you probably are not going to over-g.
There was a tell-tale indication (flight path) when the F-16 pilot was G-Loc'd...which normally lead to a knock-it-off.
Later, the training was so good that G-loc's were a rare event.
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Old 3rd May 2007, 13:54
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Why is it not GILOC?
I would think of the pronounciation. Compared to G-LOC G-I-LOC would be a bit awkward.

Last edited by hvogt; 3rd May 2007 at 18:36.
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