Apart from the bit about recreational glider pilots avoiding mountain
wave, the late model U-2 easily goes straight to 74,000 feet. There
was an article in AW&ST about it years ago where they flew an editor
from the magazine in a two seater.
The A-12 (early single seat version)/SR71 was apparently tested to
91,000 feet or so. Kelly Johnson told them not to push their luck any
higher. Got that from Pat Halloran who used to fly U-2 and SR71.
I sure hope the Perlan guys have their meteorology right. John
MacArthur, former RAF U-2 pilot who lives in Toowoomba told be it was
always smooth as a baby's bottom at 70,000 feet. He did say they
avoided thunderstorms and known turbulence.
Mike
At 11:33 AM 3/10/2016, you wrote:
Even the aviation press doesn't always get things right.
https://www.flightglobal.com/news/articles/perlan-2-glider-starts-cabin-pressurisation-tests-422970/
Mike
Borgelt Instruments - design & manufacture of quality soaring
instrumentation since 1978
www.borgeltinstruments.com
tel: 07 4635 5784 overseas: int+61-7-4635 5784
mob: 042835 5784 : int+61-42835 5784
P O Box 4607, Toowoomba East, QLD 4350, Australia
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Borgelt Instruments - design & manufacture of quality soaring
instrumentation since 1978
www.borgeltinstruments.com
tel: 07 4635 5784 overseas: int+61-7-4635 5784
mob: 042835 5784 : int+61-42835 5784
P O Box 4607, Toowoomba East, QLD 4350, Australia
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