prop-er
Forum veteraan
had this emailed to me several months ago by a pilot friend back east. The video was posted on youtube. He included the following commentary from a Boeing test engineer who was on the flights. The second of the four landings is from a prior Boeing test of the 747. No details on that one. Here's the commentary from the on-board enginneer....
Cool to watch. It was a bit more freightening on board, particularly
the last one in the video. The tests were a part of the 777
certification program. I flew in the back as a test engineer on those
flights. We did 10 landings that day, it was gusting over 50 knts on
the crosswind, if I remember the conditions correctly. On the third
one in the video, John Cashman, the 777 Chief Test Pilot blew the
approach (IFR approach per the certification requirements.) He was
too high and had to side slip--the use of spoilers or other drag
devices would have invalidated the test. While the landing looks
horrendous, the 777 gear can swivel slightly. The design was not for
cross winds, but to allow a tighter turn on the ramp. Such gear was
first used in commercial aviation on the 747-100. It wasn't intended
as a landing aid, but pilots have used it ever since.
[media=youtube]Rb0mh9lCuQk[/media]
Alternatief:
http://video.google.com/videoplay?docid=-2498234148335857479
Cool to watch. It was a bit more freightening on board, particularly
the last one in the video. The tests were a part of the 777
certification program. I flew in the back as a test engineer on those
flights. We did 10 landings that day, it was gusting over 50 knts on
the crosswind, if I remember the conditions correctly. On the third
one in the video, John Cashman, the 777 Chief Test Pilot blew the
approach (IFR approach per the certification requirements.) He was
too high and had to side slip--the use of spoilers or other drag
devices would have invalidated the test. While the landing looks
horrendous, the 777 gear can swivel slightly. The design was not for
cross winds, but to allow a tighter turn on the ramp. Such gear was
first used in commercial aviation on the 747-100. It wasn't intended
as a landing aid, but pilots have used it ever since.
[media=youtube]Rb0mh9lCuQk[/media]
Alternatief:
http://video.google.com/videoplay?docid=-2498234148335857479
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