777 rejected takeoff test

Date:         06 Oct 97 02:14:26 
From:         wb8foz@netcom.com (David Lesher)
Organization: NRK Clinic for habitual NetNews Abusers - Beltway Annex
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I watched the PBS series on the 777. Of special interest was the
full-load rejected takeoff test. I missed the figures for the
weight [and ISTM they were for load, vice emptyweight+load]
but they said it was 9.7 million ft-lbs of hot brakes.

Err... I was always an SI type, but is that a viable unit for the
test? I was looking for energy, not torque. After all it's a
straight kinetic energy->heat conversion; anyone know the m and
v^2?

BTW, it is an impressive test. They stopped the bird, then released
and confirmed all wheels were still rolling. You could SEE the
rotors through the wheels, glowing BRIGHT orange. Then the smoke
started as the tires started charring. Then the visible flames.

BTW, new tires rims etc. cost $750,000 afterwards. Not sure if that
counts repacking the wheel bearings....

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