ORIGINAL: duaneh1
I'm indoors, no wind, I take off, head and motor speed high, everything working smoothly, suddenly motor speed drops, like changing gears, pitch apparently increased since the heli maintains its altitude, head speed slow, cyclic is suddenly sluggish. Very weird-like the throttle/pitch curve suddenly changed.
Check the TX battery charge, Also if you have the stock battery on your bird, you might want to cycle the battery (run it all the way to nothing then recharge, don't do this with lipos). It's fully possible there's something wrong with the 4-in-1 or TX. Another thing to check would be the antenna wire. How is it wrapped, rewrap it and see if that helps. I put it inside an antenna tube so it can't contact any CF. Next step would be a call to Horizon.
You guys are really making me pick my brain today and there ain't much there to pick.
By the way Avalanche, I hope you meant 100% level, not 100'. I concur (like that word?) with the other guys. You don't have near enough movement.
May be a problem with the RX.