A bad mCPX brushed tail motor prevented the test flight of a brushless mCPX. So I had to get creative with the stuff I had on hand. No store to run to at 12AM. Here’s the result. A Hobby King AP-03 brushless motor and a Blade 120SR tail boom.
Worked really well too with a XP 3A ESC flashed with BLHeli tail code.
7/9/2012 Update:
I saw that there are some people who do view my post…and so perhaps some more thoughts on using the HobbyKing AP-03 motor is needed.
It works good…but obviously you gotta mod a mount for it.
I like that it’s relatively cheap from Hobby King ($15). The negative thing is, the shaft size is 1.5mm. Which means you gotta bore out that size on the prop you wanna use. I like the RRC 65mm Tail rotor blade because it has a larger center hub so you can enlarge the default 1mm hole to fit the 1.5mm shaft. Also, with the AP-03 as it comes from HobbyKing, you have to reverse the shaft. It’s easy to do with a drill press and a small socket. I’ll try and do a post on it if there’s demand. I also recommend you get a 1.5mm to 1mm replacement shaft and replace the shaft that comes on the AP-03 motor. That way, you don’t need to bore out holds on the tail prop. Fabricating a tail mount may be too much work, so if you don’t have the motor laying around to use…I’d just grab a Oversky HP03T motor and be done with it. :D
1/16/2013 Update:
I have flown the mCPX with this tail more, as well as crashed it more. And everything is still great. Had to replace one broken Plantronics tail rotor. Other than that, solid so far. I replaced the 1.5mm shaft with a 1mm shaft from Astroid-Designs so now changing props is not a hassle.
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