Bubblehead wrote:For any of you current or ex pilots especially those who have flown the B777. What does it take for a B777 at cruising altitude of 32K feet ascend to 43K feet. How long will it take to reach that altitude and what is likely to happen once the aircraft reaches that altitude.
expat wrote:Bubblehead wrote:Over a week now all I've heard from aviation and security experts are speculations. But the latest new info regarding the roller coaster ride of the aircraft going from 32K to 43K feet and back down to 23K, something just doesn't add up. I am not a pilot but I'm an avid aviation enthusiast. For you pilots, how long do you think will it take a B777 to go from 32K feet to 43K feet, if it did just that. If the plane was in autopilot can it do that? If there was a struggle in the cockpit, one of the attackers must have been in full control undisturbed for it to go into that type of maneuver. But then how reliable was the radar information that this maneuver actually took place. I'm almost sure that this tragic incident was not the cause of a mechanical failure or sudden explosion. Assuming that it was a hi-jack or terrorist attack, the perpetrators must have been extremely savvy in the inner workings of the aircraft, and there must have been several attackers, perhaps 3 or 4. It's also odd that there were no outgoing communications at all either from the crew, the passengers nor the aircraft itself other than the one from the engines that was thought to be running for five hours since last report. Also if terrorism is a suspect, were there any efforts by authorities to contact relatives and/or friends of the passengers and crew for possible association with the terrorists. Mine is also speculation but I strongly suspect that the plane was flown intact to a specific designation in an orderly deliberate manner for political reason. I hope I am right.
It would not take long at all and is well within the capabilities of the autopilot. Standard rate of climb/descent is not less than 500fpm except the last 1000ft at 500fpm. Around 1000 to 1800 feet per minute up or down.
As for a terrorist access to the cockpit, if it was locked, how did they get in? It could be argued, they got the access code from the crew, but there is a delay before the door is opened and it can be overridden by the crew electrically and with manual dead bolts on the door. Once those are shot, you will not gain access. Add to that the cockpit door surveillance cameras that are running to check who wants access and something does not add up here at all.
Matt
I already answered this......
Matt