Align DFC Rotor Upgrade Set H50101
The upgrade set is relatively easy to install and seems to work well, but beware, it does not include all items in the illustration. The swash plate is not included, you must re-use your old one. You must disassemble your original Align rotor head, and re-use the feathering shaft and all its bearings, and also your blade grips. Then you must remove your main shaft and replace with the new shaft that comes in the kit. The hard part is setting up the new head. The new DFC pitch control arms don't have enough adjustment range, and on my 'copter they were too long. So I had to make up 3 new control arms for the servos. The end result is that the swash plate is too low on the main shaft and my pitch control is limited. (not a problem for me, because I don't do 3D) Your experience may be different.
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