Fun, Learning, Friendship and Mutual Respect START  HERE

Go Back   HeliFreak > R/C Helicopter Support > Blade Helicopters (eFlite) > mCP X

mCP X Blade Micro CPx Helicopters Information and Help

Thread Tools Display Modes
Old 06-14-2012, 11:23 PM   #1
Registered Users

Join Date: Jun 2012
Location: Colorado
Default Microheli advanced x frame smoke generator

So after I broke the canopy mounts on my stock frame I thought I'd replace it with microhelis advanced x frame. I like the idea of replaceable canopy mounts plus I think it looks cool. After I put everything back together and was ready for a test flight, the tail rotor came on first as usual but as soon as the main rotor started spinning I saw smoke. After that the main motor seemed to work fine but the tail rotor did not work at all. When I tried a new tail rotor it would come on immediately at a slow speed with no throttle applied but the speed would stay constant no matter what level of throttle.

What I think I did was that I damaged the tail rotor wires inserting the boom into the frame which has an aluminum mount unlike the stock frame. Im guessing tthis shorted the wires which fried something on the control board. So I'm kinda new to all this so from searching this forum I saw the damaged part might be the tail motor fet. Looking at the fet it looks ok with no obvious melting, burns, etc.

My question if you think it is the fet, what is the replacement part for the tail motor fet. Other threads I searched I could not determine exactly what the right part number was for this application. Thanks for the help.
Funder is offline        Reply With Quote
Old 06-15-2012, 01:10 AM   #2
Registered Users
Posts: 2,149
My HF Map location
Join Date: Jan 2012
Location: Kansas City, MO

Yep, you fried the tail FET by shorting the wires. The lacquer coating is ridiculously easy to remove by pushing wrong. PM Megastumbler, he does repairs and can probably give you a part number for the FET. Will also need to replace those tail wires.

Actually, he sells them directly for a dollar, or does the repair for $25 per his site at
Blade: mCX2, mSR, mSRX, Nano-CPX, 2x mCPX (v1), mCPX-BL, 120SR, 450 X
Spektrum DX8, DX6i

Last edited by Talesin; 06-15-2012 at 09:27 PM.. Reason: Adding MS's site link
Talesin is offline        Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Copyright © 2004-2016 by, LLC except where otherwise indicated. The logo is a trademark of, LLC.