"Noddy" <me@home.com> wrote:
>"the_dawggie" <the_dawggie@hotmail.com> wrote in message
>> Yep, and is exactly why there was an airline crash because changing
>> over to SI units saw an aircraft being filled in pounds, not kg as it
>> ran out of fuel ... Air Canada Flight 143
>What, the pilotds doing the pre flight check didn't notice the tanks were
>lower than usual, or the engineer couldn't read the guages?
>Where do you get this ****ing bullshit from? 
Crash investigators. "Gimli Glider"
Commercial aircraft don't "fill" on many routes.
They take on board enough fuel for the planned flight and diversions
to alternates/delays.
The aircrew specified fuel load in kg. Refuellers filled lb.
Aircrew told the flight computer the amount loaded as kg ... which
is the units in which it operated. The fuel level indicators were
not functioning and a replacement was not available before the
flight was to leave.
There were other, compounding issues but the use of the wrong fuel
units was critical.
The plane would fly slightly further than half-way; because the
weight of fuel would be less from the time of take-off.
A closed-loop flight control system _could_ use the actual dynamics
during early flight in the lift-drag-thrust-weight balance to check
that such gross mistakes (IIRC something like 10,000kg short)
wouldn't occur. But then, who expects that sort of thing?
--
/"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia
\ / ASCII ribbon campaign | Science is the belief in
X against HTML mail | the ignorance of the experts.
/ \ and postings | -- Richard Feynman
5*pm, John_H <john4...@inbox.com> wrote:
Linear Mode
