I unfortunately, will not be able host the ducted fans or the turbines, as most of them would require a very smooth runway. I will strive to include them as soon as possible. I have some minor field limitations that will have to be dealt with first. I don't wan't to get bogged down in a multitude of classes either. I think that it will be a challenge to fairly place/categorize all of the serious speed-machines without including trainers. I think possibly prop-jets, deltas, pattern, sport and pylon would be the main class groupings. Each category could then be broken down according to displacement. I agree about both directions on the speed runs with the radar.