ORIGINAL: davidank
I will have keep adjusting from positive to negative pitch (keep going up and down on the throttle) to keep the relatively same altitude?
If I keep the pitch positive to keep it from crashing back down to the ground the heli will keep rising so I will have to then give some negative pitch to keep the heli going too high, then positive, etc, to keep it generally the same altitude?
Thanks for the info-I am just anticipating what to expect.
-Dave
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Dave I think you have the wrong idea about "negative pitch". As i said earlier, at zero pitch the blades don't produce any lift. As the pitch goes positive, the blades start pushing air down, more and more as the pitch increases positively. Until at some combination of positive pitch and throttle rpm, the lift equals the weight of the helicopter and it lifts off. A bit more throttle/positive pitch and it climbs, a bit less throttle/positive pitch, and it descends.
Negative pitch, on the other hand, actually makes the blades blow air _UP_. So if you add negative pitch while you are in the air (rightside up) you will _slam_ into the ground even faster than if you were simply falling.
Negative pitch is used for flying upside down, mostly.
So yes, you will constantly be adjusting the left stick (throttle/collective pitch) to keep the heli at one altitude during a hover, because the air is turbulent, the heli's power changes as the battery charge decreases, and various other factors.
But you will never need negative pitch while hovering normally. You will be adjusting the left stick around some positive pitch value. But you don't really have to think about this to fly, you just learn to move the left stick according to what you want the heli to do.