snurre
Heliman
Location: Sweden, Stockholm
| Noobs,
On the MJ2 the 122 mm carbon tailblades are default, so in order to rule out the possibility of 105mm being the problem now, I would try to get a new pair of original blades.
The tail linkage should be really low friction in all movement range. Ball links, tail blade bearing packs, slider, crank bearing, all!
You could do the following test (on ground, no rpm). Instead of controlling the tail from left stick, temporarily connect it to a switch channel, so you can create a sudden step command between the extremes of movement range. When you flip the switch back and forth the linkage and slider should move so rapidly so it is impossible to follow the movement with the eye.
I had a strange problem some time ago with a high performance Futaba tail servo that became slow. I still have not figured out why, but I replaced it and then tail control is perfect again.
A friend of mine had tail wagging on his MJ2, we tracked it down to exessive locktite in one tail blade bearing pack, obstructing the free movement of the inner trust bearing ring, resulting in friction enough to slow down control speed of blade pitch. Cleaned it and tail control was normal!
There are so many sources of malfunctions. I think stubborness (patience?) is a big asset when into RC-flying, choppers in particular... |
. As this is the major root cause of poor tail holding performance I just have to ask, if you snap off the tail linkage from the tail servo and just move the pushrod by hand, does it move very easily and smoothly? If not, this is most likely the source of your problem.
