Amazing video! Your taxes & US ingenuity at work! F22 Raptor Dempo.
#1
01-31-2008, 11:23 PM
Amazing video! Your taxes & US ingenuity at work! F22 Raptor Dempo.
F/A-22 WOW!!!
The F/A-22 is now operational, with two wings already flying in the Air Force. The JSF-35 'Lightening' is fast approaching operational, and can do much more than the F/A-22 - including literally stopping in mid-air from near super-sonic flight. The Su-27 / Su-31 'Cobra' maneuver was essentially a 'one-trick pony' maneuver. The F/A-22, and especially the JSF-35, can stop and eat a Sukoyhan for lunch doing the 'Cobra' maneuver, plus do so much more.[/align] [/align][/align] And, as pointed out by some ex-F-4 Phantom drivers, any of these maneuvers in an F-4 Phantom would have resulted in stall/fall/spin. H. Ownby (USAFA '69)[/align][/align] [/align][/align] Fast (super-cruise*) and stealthy, and integrated avionics are cool, but what's really impressive is the F/A-22s low speed stability and maneuverability. In the late 40s and to early 60s aeronautical engineers were going nuts on how to shape intakes to handle both subsonic and super-sonic air flows, without stagnation or compressor stalls. Supersonic in itself was a big challenge because you had to use shock waves to slow the intake air mass to sub-sonic before it hit the compressor blades, or they would stall. The engineers figured it out, but the solution was keeping a lot of air going in the front end to make sure all the hot air kept going out the back end. As you watch this Mach 2 airplane suspend motionless in air and do tail slides, be aware of the truly amazing performance of the engines and intakes.[/align][/align] [/align][/align] Some used to think the Su-27 / Su-31 "Cobra" maneuver was the epitome of 3rd to 4th generation fighter maneuverability. That snap maneuver doesn't hold a candle to what this two-dimensional vectored-thrust fighter with fat independent horizontal stabs can do at low speed. There must be far more tricks up its sleeve in the high subsonic dogfight speed range.[/align][/align] [/align][/align] The video is about 5 minutes long, but the last 30-40 seconds are priceless.[/align][/align] [/align][/align] Link[/align][/align][/align][/align]
The F/A-22 is now operational, with two wings already flying in the Air Force. The JSF-35 'Lightening' is fast approaching operational, and can do much more than the F/A-22 - including literally stopping in mid-air from near super-sonic flight. The Su-27 / Su-31 'Cobra' maneuver was essentially a 'one-trick pony' maneuver. The F/A-22, and especially the JSF-35, can stop and eat a Sukoyhan for lunch doing the 'Cobra' maneuver, plus do so much more.[/align] [/align][/align] And, as pointed out by some ex-F-4 Phantom drivers, any of these maneuvers in an F-4 Phantom would have resulted in stall/fall/spin. H. Ownby (USAFA '69)[/align][/align] [/align][/align] Fast (super-cruise*) and stealthy, and integrated avionics are cool, but what's really impressive is the F/A-22s low speed stability and maneuverability. In the late 40s and to early 60s aeronautical engineers were going nuts on how to shape intakes to handle both subsonic and super-sonic air flows, without stagnation or compressor stalls. Supersonic in itself was a big challenge because you had to use shock waves to slow the intake air mass to sub-sonic before it hit the compressor blades, or they would stall. The engineers figured it out, but the solution was keeping a lot of air going in the front end to make sure all the hot air kept going out the back end. As you watch this Mach 2 airplane suspend motionless in air and do tail slides, be aware of the truly amazing performance of the engines and intakes.[/align][/align] [/align][/align] Some used to think the Su-27 / Su-31 "Cobra" maneuver was the epitome of 3rd to 4th generation fighter maneuverability. That snap maneuver doesn't hold a candle to what this two-dimensional vectored-thrust fighter with fat independent horizontal stabs can do at low speed. There must be far more tricks up its sleeve in the high subsonic dogfight speed range.[/align][/align] [/align][/align] The video is about 5 minutes long, but the last 30-40 seconds are priceless.[/align][/align] [/align][/align] Link[/align][/align][/align][/align]
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