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Old Jan 30, 2013, 02:29 PM
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PcChip's Avatar
Joined Sep 2012
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New Turnigy HeliDrive SK3 530kv (3900W) Motor

Just noticed that HobbyKing released the new HeliDrive SK3 700 530kv 3900W motor for only $75.

Has anyone tried the other versions they already had out?

(they already had the 480kv 3800W and the 560kv 4100W, this is just a different kv rating for easier gearing for some people)

According to the 450 forums on a different website this brand of motor is supposed to be very strong!
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Old Jan 30, 2013, 06:33 PM
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The Valkman's Avatar
Joined Nov 2011
413 Posts
I have the 450 version and the 480kv in a stretched 600. Both are good motors. Just be carefull when thighening the screws and make sure they go in straight a few have damaged the threads. Here is a video I did of the 480 before I used it. It runs very cool on my 12s Ap rig.
Turnigy SK3 Motor review and disassembly (4 min 28 sec)
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Old Jan 30, 2013, 11:49 PM
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Atomic Skull's Avatar
Joined Dec 2011
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Quote:
Originally Posted by PcChip View Post
Just noticed that HobbyKing released the new HeliDrive SK3 700 530kv 3900W motor for only $75.

Has anyone tried the other versions they already had out?

(they already had the 480kv 3800W and the 560kv 4100W, this is just a different kv rating for easier gearing for some people)

According to the 450 forums on a different website this brand of motor is supposed to be very strong!
I have the 500 version. Motor screw holes are easily stripped. I'm not sure if this is due to soft metal or tapping with slightly oversized holes. You can prevent this by installing threaded posts into the screw holes with red locktite and securing it to the mount with nylock nuts on these posts. What I did was use headless screws (cut the heads off and ground the cut ends smooth) and put temporary nuts on them to tighten the threads and keep the screws straight while the locktite set.

If you ever need to remove them heat with a soldering iron and unscrew with channel locks.

Other than the one problem with the screw holes it's a good motor.
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Old Jan 31, 2013, 03:43 PM
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United States, TX, Austin
Joined Sep 2011
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I have the 560kv version on my E640 running 12s on a CC120HV. I think it's a winner. Runs cool, but I don't fly smack 3d.
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