Richard Hayward 6

The seller (Steve Webb) have posted a Quantum 55 to replace the faulty motor at no extra cost.. Good service!

Thanks Peter. The spit has much the same span as an Acro, but about 2lbs heavier. Wing section not too dissimilar. Waiting to hear back from the supplier re alternative motors, but the Quantum defo a contender. Colin - the first two motors were included with the Macgregor Boost 50 pack. The latest one is an Overlander Thumper. But, they have identical specs and look identical, so I suspect they are badged versions of the same motor .

Now getting really interesting. I took a Quantum 55 motor off the Acrowot and plugged it in to the 'new' ESC with same size prop. That runs up to full power pulling 45 Amps without any problems. So, it is beginning to look as though 3 motors all have the same weakness - doesn't it?!!

I think that's a great idea (give up, that is)! No one really local I could use. I think there must just be an incompatibility with futaba! Looks like the seller will refund and provide a different make to try.

Thanks Pete. As far as I can see in the manual, there is no option to change frame rate. I’m finding this really frustrating as all my other motor/ESC combos have worked ‘out of the box’

Sorry. Amps peak at 25 so well under ....,

The wires are stock. As mentioned, all joints have been resoldered. The combo should cope with an 8s pack. I am using a 5s and have tried a 4s with same result! Amos peak at 25, so we’ll under what should be the limit

Dennis. I'm relatively new to electric flight, but I thought the whole point of calibrating the throttle movement with the ESC was to take account of all the differencies in different transmitters?

Thanks Dennis. No servo monitor on Tx. SubTrim 0. Expo 0. Tried trims at 95%. Still the same problem. The problem only shows with the prop on. Trevor. Ii don't have a servo tester (yet!). I can't see excess current being a problem as it only gets to around 25 Amps when the motor cuts

Thanks Dennis - I don't know any other way to set the range other than: Turn Tx on, Throttle to max, turn Rx on, wait for beeps, throttle to min. ????

P.S. Just going to remove motor from Acrowot and try that on the new model's settings.

Right. Have redone all connectors with new items and leaded solder. Have tried a known good receiver from Acrowot. Still the same. Think it must be something in the Tx settings, but really have no idea what as I set the throttle range in the ESC in the usual way.

Good idea Colin. I’ll swap motors from my Acrowot and vice versus tomorrow.

Thanks Extra Slim. I'm very tempted to solder new connectors on motor and ESC - just want to check that it won't bu@@er the warranty if it doesn't work.

Thanks Colin. Will go and have a play.........