ORIGINAL: Woketman
My complaint about that unit on my old Hotspot was that when it detected that I hit 200 mph, it did not gently reduce the power a bit to keep from exceeding 200, it just chopped the throttle! The first few times I hit the limit at airshow center and I heard ''PHHHEEEEEWWWWWWWWW'', I about crapped my underwear!!! I finally figured out what was happening and ripped that unit out immediately and used the eyeball method of speed control thereafter. Worked great.
During the testing we determined that it had a 10 mph band. At 190 it started to throttle back and continued a linear ramp down till you hit 200, so you could punch through the band pretty fast in a dive. It is concevable that if a model could hit 200 straight and level that the unit would take control and keep control untill the pilot did something to slow the model down below 190. Another interesting feature is that if you do the setup backwards the unit works backwards; hit 200 and it would hold the throttle wide open.