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Knight26

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  1. Well, the redesign of the YF/VF-19 and YF-21/VF-22 have real-world examples.  The YF-22, YF-23, X-32, and X-35 were technology demonstrators and were never meant to be representative of the final production aircraft.  The YF-22 is actually a good example since we did lose one during testing due to Pilot Induced Oscillation (PIO), which is a major concern in any fly-by-wire aircraft. I even worked on the Flight Test Program where the goal was to limit PIO as much as possible.  

    Now, we do not know why the YF-19 prototypes crashed; it could have been for any number of reasons.  But consider this: the YF-19 had one the most complicated transformations to date at the time (In the real world, yes, the SV-51, VF-9, and other advanced Valkyrie designs had some pretty origami transformations).  So, the crashes could very well have been a result of that locking up or the pilots initiating them at too low an altitude or other PIO-like issues.  The fact two pilots were killed leads me to believe that they were both aboard the first prototype when it was destroyed; perhaps one was acting as the onboard Flight Test Engineer (FTE) in the back seat.  The other two point to an issue with the flight control computer not being properly attuned, which tracks with what we know about the Chief Engineer wanting to do anything and everything to prove his design was the absolute best.

    Once selected, the -19 would have undergone an extensive redesign for the production version, eventually leading to the VF-19F/S/P/Kai.  However, like RQ-4A Globalhawk, there was an immediate need for the VF-19A to go into Low Rate Initial Production (LRIP) to fill a gap in the UN Spacy Space Forces.  These would likely have been derated in comparison to the YF-19 to make it more manageable for the average pilot, likely by adjusting the engine output, limiters, transformation mechanism, cockpit, and Tactical Operational Profile.  

    Maybe the Master File has a better explanation for the redesign and why the YF-19 flight test program faced so many issues, but that has always been how I looked at it.

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