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grumman needs a polish

Old 9th Aug 2015, 08:34
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grumman needs a polish

Man escapes serious injury after light plane crashes south of Canberra
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Old 9th Aug 2015, 12:30
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Good news on the Pilot.

But what exactly is a "'sink hole' of air pressure"?

I must have skimmed over that bit in my books.
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Old 9th Aug 2015, 12:57
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One less AgCat around the traps. That one was a pretty good example.
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Old 10th Aug 2015, 10:36
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grumman needs a polish

Air pressure "sink holes" are described in detail in the Manual of Meteorology. They are the reportedly the prime cause of "plummeting" - aka "death dive" and "tail-spin"

Last edited by roundsounds; 10th Aug 2015 at 13:04.
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Old 10th Aug 2015, 11:45
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Huh.....Thanks Rounds, I really did skim, and it was a long time ago! No excuse.

I will have to go back have a better look.

And while I don't wish to thread hijack, makes me wonder how many ppl have forgotten a lot of the theory over the years.
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Old 10th Aug 2015, 12:19
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These sink holes you describe are probably more like mountain rotors.
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