Pete: "Actually, the A319 is a fly by wire jet, similar to the F-16...and 777! Hydraulics-yes, but no cables/pulleys "
You're right, Pete. No hydraulics, no fly. The A320 series has three hydraulic systems (Green, Yellow, Blue) and there are backups....In typical design fashion, it is considered the likelyhood of all three systems failing to be very low.
The flight control system can best be desrcibed as making the pilot a "voting member". A sidestick control input results in the flight control computers evaluating the "request" and saying either "yes you can do that" or "no you may not"
The only known malfunction with this system to date was a Lufthansa A320 that lifted off and the captains contol inputs being reversed in the roll due to a bent pin in a caniplug. The quick thinking F/O took control and it was quickly learned what the problem was. It worked out favorably....and fotunately.
But no, there is no direct link to the flight control from the sidesticks. Additionally, the flight control computers are redundant, powered by different busses, and are very simple in their operation (1980's technology).
The A320 series of aircraft, with all FCC's operating, cannot be intentionally placed in a flight envelope not appropriate for transport A/C. This doens't mean that it cannot go out of control.....it is still susceptible to wake turbulence, mountain waves, microbursts, etc.
I suspect there was some other malfunction that kept the 319 from taking off. It may not even have been the temperature.
I recall in the late 80's in Phoenix, all air ops stopped at all airfields military and civilain because the temp was 122 deg F. Not that the planes couldn't fly in that environment....but the published performance data only went to 120 deg F. No published data makes it an unknown and therefore unsafe.
I can't find my POH for the A320, but I was wondering if the perf data wasn't available or didn't go down to that temp.
I could find out by talking to the guys I used to work with.....I'm sure one of them knows. Give me a week.
air
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