RE: FIRST FLIGHTS OF MODIFIED D.D.
Congratulations, undoubtedly a pretty awesome combo! The distance over time deal gets pretty tough the faster you go, you're doing roughly 300 feet per second at 200 mph [quick math in head] The observers need to be stationed directly in the flight path at the set distance to eliminate perspective error, plus a pole set at 90 degrees to serve as a reference for the observer is needed too. I think to increase accuracy, the distance needs to be moved up to 1/8th mile, [660 ft] which is still a manageable distance.