I also love the 250 CFX, in fact I have 2 of them, but this ESC that it uses is not durable and very unforgiving in any crash involving the tail motor. I’ve replaced 3 of these ESC’s just because I wasn’t fast enough on the throttle cut switch following a crash. What I believe happens is, if the tail motor freezes following a ground strike, the tail motor current will spike and instantly blow the tail motor control circuit on the ESC. About half the time on any crash involving the tail motor, I will lose the ESC. I’ve never blown the main motor circuit of the ESC probably because the main gear hub blows instantly and so the main motor never stalls.

I very much like the the concept for Blade 250 cfx heli. I have a Blade 230 rebuilt on microheli carbon fiber frame with aluminum cross members it is great. I was hoping that the 250cfx which I purchased would perform like this since the designs are very similar. However, I have had 6 ESCs fail on my new 250 cfx, one caused a fairly substantial crash and one caused fire which also burned up the main brushless electric motor.! My Blade 250 cfx is now shelfware. I am looking for a replacement ESC to make this heli operational. The last replacement I put in will initialize but when throttle is added the main motor turns 1/2 revolution and stops. Putting in stock replacement ESCs over and over is insanity. I am a heli pilot not crazy. In my opinion Horizon should offer an upgraded ESC, something by Castle would be nice! I would be happy to pay $80 for an ESC that works.