View Full Version : grumman needs a polish
catseye
9th Aug 2015, 07:34
Man escapes serious injury after light plane crashes south of Canberra (http://www.canberratimes.com.au/act-news/man-escapes-serious-injury-after-light-plane-crashes-south-of-canberra-20150806-gitkhw)
Walking Ballast
9th Aug 2015, 11:30
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.
FoolCorsePich
9th Aug 2015, 11:57
One less AgCat around the traps. That one was a pretty good example. :(
roundsounds
10th Aug 2015, 09:36
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"
Walking Ballast
10th Aug 2015, 10:45
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.
FoolCorsePich
10th Aug 2015, 11:19
These sink holes you describe are probably more like mountain rotors.