Looking for Motor Compliance Technical Team

[DPeterson]

Now that we searched out and got the ball rolling on some other motor choices for Spec Racing, I believe it is time to establish a Motor Compliance Technical Team (MCTT).

I would propose this Team be comprised of 3-5 persons and be from various geographical areas. This Team would be charged with the responsibility to do bench top performance testing on the motors identified that may qualify for Spec Racing. This Team would provide the motor performance data to any governing body needing this information for which to create racing classes or other rules.

As of right now it looks like the benchmark for Spec Racing is the 36mm x 60mm can limit with an actual KV range of 1800 to 2000. The AQ 2030 fits this as does the TP3630-1950. I know the Highendrc 1970 is out there and maybe a TFL motor is being considered. Looks like 4 good possible choices.

A testing protocol would need to be developed so the Team has some uniform evaluations. It would be hoped that the Team would be close in their results.

As a current promoter of the TP motor I will provide this motor to each Team member for their testing. This motor then is their reimbursement for their efforts. Any Manufacturer that wants to provide their motors to our Spec Racing should do the same.

I know Darin expressed his willingness to do some testing as well as did rayzerdesigns. Are there others?

What can we accomplish?

Doug

[properchopper]

Doug,

Tyler has a high precision gaussian flux density measuring device used to measure rotor magnetic strength. This is an important parameter that I'm fairly sure affects motor power output. I'd imagine He'd allow me to measure a rotor on a test motor when we meet up.

[DPeterson]

Hey Tony

I hear you will do anything for a P-Limited motor. Hopefully I will have some 2030's to send to you soon.

Maybe we should start by discussing what motor parameters are important to test for, what equipment is necessary to perform the tests and then what the testing protocol should be. Maybe then we will have some guy's stepping up to the plate.

Doug

[RaceMechaniX]

While I have the majority tools to partake in benchmarking motors I don't want to jump into this subject just yet. While I would love to see a more robust spec motor, I know a lot went into getting to where we are today.

There are at least a dozen motor specs one could look at to compare motors: kv, kt, idle current, Current at Max Eff, Power output, # of poles, Type of magnet, Magnet strength, Stator construction, type and thickness of stator laminations, Impedance, Resistance, inductance, etc.

TG

[DPeterson]

Thanks for weighing in Tyler.

If you wouldn't mind sharing - what would you consider to be the most important, simple and most reasonable tests to perform?

Looking for technical information only - not rule making.

Doug

[RaceMechaniX]

It's almost impossible to pick a single performance factor, but it would be power at a similar speed and current to the benchmark motor.

TG

[TheShaughnessy]

I have eagle tree with lots of sensors and GPS. A good collection of props. Close proximity to Tony. We could be a testing team if tony doesn't mind. I think speed, watts and temps would be pretty important. Loaded RPM might be nice to compare.

[DPeterson]

Seems like the team of Properchopper and Shaughnessy would be a good start. Would be nice to hear from that gentleman in the Pacific Northwest, someone from the East Coast and even the Midwest.

I will admitt that this is an area above my skill level and time allotment. I know there are guy's out there totaly competent to evaluate these motors on an unbiased manner.

Seems to me that an unloaded KV/RPM comparision along with a known loaded KV/RPM between motors would be a good place to begin.

Doug