F22 crashing on runway video.

Thought some of u guys might find this interesting, pretty sure its a 22.


Just click on the 'bumpy ride' video/ number 105.


www.ahajokes.com...




[edit on 15-9-2004 by ufo3]

seen it.

It had a malfuction and that pilot did a great job on saving the jet.

damm right. some nice flying or well glideing by the looks of it.

If I remember correctly, that was a YF-22. A computer glitch caused an ocsillation, just like on that shuttle landing in 78, I think.

The reason why it happend was because of IPO (Induced Pilot Oscilation), and the F-22, was repaired btw.

[edit on 15-9-2004 by Hockeyguy567]

Nice flying by the pilot it takes experience and skill to pull that off. Any one know when this video was shot? ( the year)

Originally posted by WestPoint23
Nice flying by the pilot it takes experience and skill to pull that off. Any one know when this video was shot? ( the year)

It's from 1992.

I have that video on a CD-ROM I got in 1995. It clearly says 92 as part of the date.

[edit on 15-9-2004 by sweatmonicaIdo]

The YF-22/F-22 is an unstable design in order to achieve maximum agility, it is stabilized via computer, (this is the case with many "fly by wire" aircraft). The plane in question apparently had unanticipated aerodynamic characteristics in the low altitude, low speed regime.

In this particular case the resulting characteristic which brought the plane down hard was obviously "PIO", (Pilot Induced Oscilation) as already suggested in some of the posts above. This PIO was most likely brought on by non-synchronous input from pilot and computer clashing with the airframe's difficult aerodynamic form.

A software fix was probably needed to correct this problem.
I believe a company called Barron Associates in Charlottesville, VA is addressing such software issues with both manned and unmanned aerospace vehicles under a DARPA\USAF program called "Tactile Cueing for PIO Avoidance".

Problems are expected with most prototype aircraft - that's why test pilots get paid well.

Intelgurl

[edit on 22-9-2004 by intelgurl]

This is remembered from a long gone issue of Air International, but the issue was flight low control gains dramatically and with no blend in point of action made the pitch rate of the aircraft in degrees per second 3 or more times quicker in gear up position compared to gear down, he was in the process of lighting the afterburners, raising the gear and pitching up. The laws when gear down said just a few degrees per second as the gear might be damaged or the aircraft stall. But as soon as that switch was turned it went to full pitch for the same stick pressure as what was needed subjectively for that moderate climb it leaped nose up forcing the pilot to automatically try to correct for that. Because of the was an equally high pitch down control at gear up the thing naturally went down quick, forching the control system to mix max sorface movement per second, but he still managed to get it down so he could belly land it safely. A good pilot can do that, and Tom Morgenfeld had been around a lot of years, including a harrowing no nosewheel landing in a prototype F-117 at Groom Lake.

It was a software glitch, he was exonerated from causing the accident.

That video is old as hell, as people commented.

I can't imagine being a test pilot. I get nervous on the freaking Ferris wheel. Then again look who's setting up and running the Ferris wheel, it's not a Boeing engineer.

I've had the opportunity to speak with Tom and he definitely has alot on his plate. It takes alot of nerve to do some of the things he's accomplished. He and other test pilots I've spoken with usually have a well thought out plan as to what they're going to do in the air, but as most admit.."Things seem to change from one second to the next and all that planning goes right out the exhaust". I can recall an aircraft executing an uncommanded roll.......now that is enough to make a mess in anyones pants.

I was wondering if I could get some help. For English 210 i am writing about how the Congressional interference has signnificantly cut back the F-22 program and how it is endangering US Military by compromising air operations over future threats, anybody want to cotribute anything to help? (even some info on rival planes, but not too much)