RE: HK-450GT CCPM Alloy T-Rex compatible - Part III
I don't know the stock esc number, but in the manuel it calls for a 22v 6s but I've been flying it for a year with 5s 18v getting 8 min flights,, so I"m thinking the esc could be the reason it's surging,, reving up and down after 4 minutes with all the batteries, it does not seem to be heating up. I thought of changing the throttle curve but that may fix the head speed but not the surgs... crazy man, crazy stuff.