Ok so i recently bought a Super Fly x from hobby people during the black friday sale. After some bench testing i decided to get rid of the 1050 kv motor it comes with and replace it with a hobbypeople motor i had as a spare laying around. the reason was because the super fly comes with a 4 bladed prop, which puts out a decent amount of thrust with the stock motor, about 10-11 amps at full throttle so right around 120 watts ( i know those aren't thrust measurements) However the hub on the 4 blade prop is crooked to the point that i didn't really want to fly with it.


so i tried the stock motor with an APC 5.5x 4.5 and got a measly reading of 3 amps at WOT and it didn't have near the thrust.

Back to how i replaced it with the hobby people (HP) motor, I don't recall the exact specs of it but its either a 2208/09 or 2208/12 and i'm thinking its the 9 turn. Well i hooked it up in my vice and spun it up on the watt meter with the APC 5.5x 4.5 and with a fresh 3 s hobbypeople 2200 mah 20 c bat i got 17-18 amps and about 200 watts, now we're cookin i think.

So i weigh the stock motor with the 4 blade prop and it is around 95grams the HP motor with the prop and adapter was only 50 grams, even better i'm thinking.

So after i carefully remove the stock motor housing and motor i am able to utilize the stock mount with the "new" HP motor and i get it all put back together, this is where the problem is.

I go to test the motor in the plane and now anywhere past half stick the motor starts to shutter and cut out. On the bench i was using a different esc, a 60 amp hobbywing i got from hobbypartz.com. I ran 2 batts thru the motor to make sure it was going to be fine, both test were about 6 min, the first one was just at half stick the hole time and the second one was mosly half stick but i did some full stick burst for 30 seconds.

So I'm thinking there is a couple explanations for this. One the timing on the stock superfly esc is too low and that is what is causing the stuttering or when i removed the stock motor there were extensions soldered onto the motor leads so that it could reach the esc, instead of soldering the new motor wires to the extension wires i just soldered up some female 3.5 mm bullets to the extensions since the HP motor already had some 3.5mm males on it and now there is some kind of extra resistance that wont allow the motor to spool all the way up. Could having two sets of bullets vs one cause this to happen?

I tried to enter a programming mode on the esc by leaving the throttle stick all the way up, but all i could get it to do is re calibrate, i never heard a beeping sequence like with most other esc's i have.


Sorry for the lengthy post I'm just trying to give all details available.