|
credence -> RE: Getting the Smartech Aerohawk off the ground (6/15/2005 6:07 AM)
|
Wobble can be caused by imbalanced blades, misaligned blades, flybars with screwed up pitch, or a combination of all three.
It's been my experience that if theres an imbalance anywhere in the rotor head, it will cause the appearance of a warped shaft, when in reality, the imbalanced weight is causing the shaft to flex while spinning.
Try tightening the blades as tight as they will go (without stripping anything). Now, align each blade so that the leading edge is at an EXACT 90 degree angle with the flybar. If everything is aligned properly before each flight, the blades should stay put while spinning giving you a steady head. Keep in mind that this will require proper alignment before each flight, as the blades will not auto-adjust under centrifugal force. I find this method works better than the "tight but not too tight" method, for small fixed pitch helis, due to their lower head speeds. If you still get wobble, you could have imbalanced blades. Also make sure your flybar paddles are perfectly flat, and that the flybar has the exact same distance between both paddles on either side.
In terms of your lift problem. I suppose it could be a number of many reasons, bad batteries, faulty motor, faulty speed controller, dirty pots on your transmitter, etc. Wobble won't prevent you from lifting off, atleast, it's not likely. It'll only make the heli difficult to control in the air :)
I'd try giving the blades a real good twist to really increase their pitch. If that doesn't work, try some new batteries, or better yet, some more powerful batteries like an 8 cell, or even some lipo's.
|
|
|
|
