eagle tree readings

[dasboata]

Ran my MM this weekend with a leapard 4074/1774 Kv running 5S 9000ma run time was over 10 min with a x442 amp draw was 120-140 and ESC temps measured at the caps and 80-100 temps measured in the middle of the ESC were 120-130F my motor temp sensor was not working I was doing 40 MPH with 30-35,000 RPM I then change props to a 437/3 Amps went down to 100-120 and temps also went down to 100-120 but I lost 3 MPH at about the same RPM which I find odd any input appricated

[TheShaughnessy]

x442 has a final pitch of 2.310 while the x437/3 is 2.072. Nothing odd about it really, What happened is to be expected.

[LuckyDuc]

Ran my MM this weekend with a leapard 4074/1774 Kv running 5S 9000ma run time was over 10 min with a x442 amp draw was 120-140 and ESC temps measured at the caps and 80-100 temps measured in the middle of the ESC were 120-130F my motor temp sensor was not working I was doing 40 MPH with 30-35,000 RPM I then change props to a 437/3 Amps went down to 100-120 and temps also went down to 100-120 but I lost 3 MPH at about the same RPM which I find odd any input appricated

I don't bother using the RPM sensor anymore. I was never able to discern much from the readings... They tend to be all over the place. These days I only chart average continuous amps, GPS speed, temps, and the number of satellites locked when I'm testing props. I like to chart the number of satellites because the more you have locked, the more accurate the speed reading is.

Here is an example of one of my charts from prop testing with a P-limited setup. I try to keep the charts as simple as possible so I can determine which prop I like the best.

Green line is amps
Blue line is GPS speed
Red line is number of satellites.

[jcald2000]

How did you get that nice wide chart, I usually have about 6 pages with 225 per page.

[LuckyDuc]

How did you get that nice wide chart, I usually have about 6 pages with 225 per page.

I set logging triggers. Mine only records after 5 amps has been reached and stops recording after the current falls below 5 amps. This helps to avoid wasted space and makes the graph look cleaner(wider). The charting tool also allows you to zoom in on specific areas. When you zoom in on an area the averages also adjust to the zoomed area which is very helpful.