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ORIGINAL: can773

My comments on the motor!

For those that dont know what a 30-10 Evo is, its Plettenberg's latest offering into the F3A electric motor market, based on the 30-10 motor that we used last season. It was first discussed at the World Champs in France to take the existing motor and improve both power output and cooling. First impressions of the new motor is that it did just that!

First thing is to give some reference numbers for the 30-10. As I was only able to test the APC 21x14 prop today thats all I will use for comparison. With the Thunder Power 5300 packs at about 25C the 30-10 would give about 5600 rpm at 64A and 2300W.

The new 30-10 Evo gives the following at various pack temperatures tested today....all with the 21x14 and TP 5300 packs, all static results.

12 celcius pack temp, 5900 rpm, 72A, 2500W

25 celcius pack temp, 6200 rpm, 85A, 3000W

45 celcius pack temp (can be seen at the start of the graph attached, hope you can read it), 6500 rpm, 92A, almost 3500W!

For reference, on the graph the blue line is pack temperature, black is pack volts, green is watts, and brown behind the green is amps.

I flew three flights today, motor temperatures were about 10-15 celcius lower than what I would have normally got with the early 30-10 motor in these conditions. Increased cooling inlet and outlet area, as well as a new stator design that allows airflow in the core of the motor contribute to the lower operating tempertures. Very windy and cold so a lot of throttle was usually required with the old 30-10. With the Evo motor I flew the sequence at less than full throttle for nearly every manuver. From the graph it shows that I used for most of the flight similar power levels to the old motor, however on a few occasions when I needed more power it was able to deliver. There is no lack of power at all during the sequence now, in fact careful use of the throttle is required or it accelerates too fast.

The most impressive part of the test, was the same rpm test I did. I ran the Evo up to the 5500-5600 rpm that I normally see with the 30-10. The draw from the Evo motor was only 50-52A, which is better than 10A lower than the 30-10 motor. So the motor is much more efficient at the partial loads, which helps to lower the temperature of the motor.

At any rate I am very excited by the new motor, its way more than what I ever expected.

Tomorrow I plan to test both the 21x13W and the 22x12. I think the Pletti's hit the nail on the head with this one!