ORIGINAL: mblue2050
CAP have a aiplane friendly switch layout and a notched throttle for more control of the rudder with effecting throttle so easy , trainer switch on the left, defaults to acro model type.
CHP have a heli friendly switch layout, idle up and throttle hold on the left. Ratchet-less (unsprung) throttle, defautls to HELI(SW1) Model type.
Not what he asked, but yes, the diff from the A and the H models are just the throttle ratchet is different, smoother on the heli version (H) and there are a few switches on top in different places. The programming in both models is the same. You can program airplanes, helis and gliders in both models.