Quote:
Originally Posted by Kevin J
Dumb question, but does the transponder need to be squawking in order for radar to pick up a plane? Or is that just military radar? Obviously they can pick up missiles and hostile aircraft that aren't squawking their location.
Air Traffic Control radar only picks up planes with transponders, so MH370 disappeared from their screens as soon as the transponder was disabled. The flight path data we have subsequent to that is from Malaysian military radar and didn't come out until a little while after the incident, after they went back through their logs. Side note, I'm not a military guy, but it seems embarrassing to me that it was possible to fly a large plane with no identification over Malaysian airspace without someone raising the alarm.
Quote:
Originally Posted by Kevin J
Thanks. That's why I wouldn't make a good detective. I'll never forget when Payne Stewart's plane lost cabin pressure and flew for miles after everyone on board was likely dead. It was tailed by military jets ready to shoot it down. Fortunately, it ran out of fuel over an unpopulated area and that was never necessary. But I was listening to it on the radio in real time and it was surreal.
Helios 522 is interesting as well. Poor flight attendant, what a fate.
Quote:
Originally Posted by Kevin J
As I responded above, I didn't even think he might be trying to protect family members from having to suffer the questions of why he committed suicide and killed all those people, so hiding it seems realistic to me now. But one thing I don't get...
He must have had to subdue the co-pilot and possibly other crew on board who surely recognized something was up. Even as a passenger I have a general sense of which direction my plane should be traveling and if it adjusted its course at cruising altitude to that degree without pilot explanation I'd be pretty alarmed.
It's speculation, but likely he decompressed the cabin. From the cockpit, the captain has full control over cabin pressure and can equalize with the external pressure. Passenger oxygen masks would drop - the captain cannot control this, preventing it would have involved removing the circuit breaker before the flight. The cabin crew also have portable oxygen masks available. However, MH370's altitude was 35,000 feet when it disappeared. At 37,000+ feet, standard oxygen masks are insufficient to stay conscious, and even at 35,000 feet, people trying to breathe with standard masks will quickly become hypoxic. The pressurized oxygen masks needed to function at this altitude are only available in the cockpit. Normal procedure in a decompression is a very rapid descent for this reason.