Paul,

The processor we use to control the throttles is a Motorola MC68HC16Z1
running at 16.77 MHZ.  The control software is written in Assembly.

Dr. Moller

Thank you for answering that. That is about what I would do as 
the 68HCxxx processor has a definitive time for executing instructions unlike
the more powerful Intell PC processors. Assembly language gives the 
programer precise control over execution times unlike most higher 
level languages.

I hope you don't mind but I have another question.
Have you run into a ground induced vortex or re-circulation in your
ducted fans? I read where that seems to be a problem with the
Osprey.

Paul Lamar
 
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