Thank you Be strong America good country! Pilot that person is well that is good F-22 is America new airplane America AirForce test now that hapen new airplane new technologia Thank you.
Posted on 12/20/2004 4:51:48 PM PST by BurbankKarl
MilAir scanner sources indicate a new F22 Raptor has crashed at Nellis. Pilot was seen ejecting.
You wrote;
Eye witness reports that aircraft was on fire on takeoff.
Did someone forget to tighten down the gas cap?
They should have about 20 in service by now and were scheduled to be producing at 3/month.
Especially when (in engineering terms) it's a control loop instability problem, not a pilot problem. Allow me to explain.
The control loop related to the so-called PIO condition, consists of multiple elements all of which are equally part of the problem. The components of that control loop, and the "signal", travels from the pilot's butt to his brain to his hand to a fly-by-wire computer to the elevator actuators to the aerodynamic response of the F22 itself, and then back again to the pilot's butt.
Every element in that loop has its own gain and phase shift (delay, if you prefer). If the loop is unstable (i.e., "pilot induced oscillation"), every element in that loop contributed to it. But such an instability says plainly that the design did not account for each of those gains and phase shifts. All control loops must be compensated so that the net sum of all gains and phase shifts must never allow for an unstable condition. This is elementary control loop (servo loop) theory. There is no element in that control loop, including the human component, that can not be modeled to ensure loop stability.
In other words, PIO is not a pilot problem, it has always been a design engineering problem, 100%.
--Boot Hill
And here I thought the 1/72 Italeri model was the ugliest F-22 ever made.
Thank you Be strong America good country! Pilot that person is well that is good F-22 is America new airplane America AirForce test now that hapen new airplane new technologia Thank you.
Good morning Thank you :}}}}}
no problem ;)
"Merry Christmas to you and yours!"Thank you!! Be strong America good country! Strong is good!
The Navy version of the F-35 Joint Strike Fighter is the intended replacement for the F-14. The Navy has a long habit of mismanaging their fighter aircraft programs and then opting for an Air Force model. The F-18, for example, began as the losing competitor to the F-16 in the aircraft competition that John Boyd managed decades ago.
Hope so . . .hate to think those booms were from impacts.
;-)
Long maybe, but not consistant enough to be a "habit". The only time it happened was in the early '20s when the Boeing PW-1, the Curtiss P-1, the Curtiss OC-1 became the FB-1, F6C, F8C respectively.
By the late '20s tge Boeing F4B began as a naval plane before becoming the P-12.
And from the 30s on. did Grumman ever build an Air Force aircraft?
"Pilot that person is well that is good F-22 is America new airplane America AirForce test now that hapen new airplane new technologia"
Great photos.
Thank you :}}}}}
That was perhaps the squared plan - However, I have heard from varying sources that the F-35 will never see the deck of USN Carrier (and instead it very well may be the F-23) - Which would leave the USAF very jealous down the road -
That would be expensive, given the falling dollar.
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