PCA Forums

After the plane crashes, jump ahead to about the half way point. The pilot must have left the starboard engine idling, because after they evacuate the plane the engine's throttle comes up. VIOLA! Jet engine outboard motor.

http://www.videosift.com/story.php?id=9928

wow that engine was ompleatly off. then it went through a full startup... i but water got in and shorted something out telling the engine to start.

I dunno. I know a little about jet turbines from working with model plane jet turbines, and I can't see an electrical short starting an engine like that. Not if he did a proper shutdown. Fuel needs to be turned on, the turbine spun up.

Then again I'm also amazed it lasted that long ingesting some serious quantities of water.

the water would be been turned into a vapor as it went thru the compressor blades so i honestly cant see it dousing the the ignition phase flame and the engines were pointing upward

I wasn't thinking of that. I was thinking that having a huge amount of water coming into the engine would probably damage the blades, throwing them out of balance. I kept waiting for the engine to tear itself apart.

This pilot sounds like a real winner. For one, the airport was closed to jet traffic. Second, an airport diagram was found on the pilots yoke-- on that diagram stated "closed to jet traffic." Third, the NTSB report (link below) states that this plane requires a landing distance of 3000 ft in a no-wind situation and the runway was only 2950 ft. In this case there was a tailwind which would have further extended the required landing distance.


http://www.ntsb.gov/ntsb/brief2.asp?ev_ ... 085&akey=1

Supposedly, from what I've read on another aviation board, the pilot attempted to "taxi" the plane out of the water. Whether that is true or not is beyond me, but after numerous other stupid actions I can almost believe it.

Then again I'm also amazed it lasted that long ingesting some serious quantities of water.

turbines don't care. they're not like piston engines, they can't hydrolock. water will put the fire out if it's running, but they can restart.

I was thinking that having a huge amount of water coming into the engine would probably damage the blades, throwing them out of balance.

well, the Citation uses high-bypass turbofans, so any water making its way into the engines would have probably been whipped up into a mist by the time it got to the HP section.