Page 2 - Flight Envelope News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Wouldn't worry about altitude he would worry about attitude how stable is his airplane in terms of his horizon. >> what do you make jeff? >> well airbuses are built with something called envelope protection. when you're flying them around normally the plane will not let you put it into a situation beyond its flight envelope or to stall, for instance. you can get into situations -- this happened with air france 447 where if the sensors get clogged for instance and the computer isn't able to make sense of what it's doing it will turn itself off and hand itself over to the pilot. in a normal situ...

Kind of pitiful three weeks in to be at this stage of the investigation. the investigation finally getting organized, the international rules applying. but, boy, what a loss of potential time, let alone the anguish of the families waiting and turning on every aspect of this. >> plenty of criticism to go around. can i ask you, though, this report of 40-some-odd,000 feet in the air, is the 777 definitely able to fly at that altitude? i've heard conflicting reports. >> i think when they said 45, that breaks the flight envelope of the 777. that's really pushing it higher than it was meant to fly i...

They got iced up. what happened, the air speed indicator acted like an altimeter. so when the aircraft climbed, showed it was increasing in speed. that obviously wasn't happening. the pilots reacted to pulling the power back. that's the way you control the speed. what happened is that they didn't realize they were climbing, pulling the power back, enter the catastrophic stall, huge loss of lift on the wing and descended from 35,000 feet into the ocean. the pilots had no idea that the flight envelope was exactly that. and so there was no distress call put out. there was no 7700 put out on the t...

Or mechanical failure. let's look at the air france 447 board of inquiry. no distress call on that. it was found two years later. the reason was is because the aircraft got into a flight envelope that the pilots weren't aware of and it crashed without them being aware of what was going on. >> i want to ask about these 12 minutes when we learned that someone reprogrammed the flight computer in the last point of contact with air krafk control. is that ir a benign explanation for why they would change the route in the computer and say, all right, good night, 12 minutes later without telling anyon...

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