Mike, thanks for posting the information .... it was great to see the videos, and I am pleased Mike was able to extract some decent Doppler info.

This has been a fun project.... shows what can be done if someone "builds" an airplane for the extreme speed purpose

Also, provides a great illustration of why using the right prop is important.

A refreshing change from the postings of "how do I get my fat ARF cow to 150 mph" [&:]
But then again, that is a challenge all itself.