 OT: Plane crash at Toronto (Pearson) airport, Air France A-340 |
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| JWest |
 Aug 2 2005, 05:52 PM
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#21
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Senior Member  Group: Members Posts: 1,663 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None 
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This is kind of a fuel injection vs. carbs type debate, but I'll get in anyway (I'd be pretty surprised if anyone here knows more than me about digital flight control systems).
We (the areospace industry) have been flying with "electric jets" since the 914 was still in production. Basically, a fly by wire system allows aerodynamic designs that are impossible for a mechanical system to control. Beyond that, the system can be extremely pilot friendly with angle of attack limiters, different control laws for various parts of the flight envelope, control surface mixing, etc., etc., etc.... BUT, it also allows the designer to really screw up if the design philosophy or testing is misguided (the airbus "I won't let you do a low level pass" is an example of something that should have never made it into the control laws, and definitely should not have made it past the first test software release. |
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| J P Stein |
Aug 2 2005, 06:07 PM
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#22
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
According to a news report, a passengers said the lights in the aircraft went out about a minute before touchdown.
I can see it now. The thing gets hit by lightning. The pilot lands & hits the thrust reversers. The puter says. "I'm sorry, you cannot use thrust reversers at 30,000 ft" The pilot says "Eh?" Pilot error, of course. |
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| Howard |
Aug 2 2005, 06:14 PM
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#23
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Incontin(g)ent Member Group: Benefactors Posts: 5,785 Joined: 24-July 03 From: Westlake Village, CA Member No.: 943 Region Association: None 
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The real story...
Attached image(s) 
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| SpecialK |
Aug 2 2005, 06:25 PM
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#24
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aircraft surgeon Group: Benefactors Posts: 3,211 Joined: 15-March 04 From: Pacific, MO Member No.: 1,797 |
(IMG:http://www.914world.com/bbs2/html/emoticons/lol2.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/clap.gif) |
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