UPDATE.......
While my machine shop is still un-able to make me T-Motor adapter for Solo prop ( they broke the prototype
), my ESC arrived and I managed to do some test with KDE and Solo OEM motor & prop.
I just realized that DJI Phantom 3 prop even though has the same thread with Solo's prop, Solo OEM motor has fatter lower shaft below the male thread for the prop, so Phantom 3 can use Solo's prop, but Solo can't use DJI prop, if the motor is Solo OEM.
Why I am interested to test Phantom 3 prop is, because KDE datasheet tested 2315XF 885KV with DJI prop which I am sure KDE made typo , 9" x 4.5" KDE written. I check with DJI store, it is 9.4" x 5" for the P2 or P3 prop. I need to verify KDE data based on their test and my test. My last reading on a guy who tested KDE vs T Motor, showed KDE over rated its efficiency, it seems true.
NOTE : KDE advertised this motor is a replacement for DJI P2/P3. So their DJI prop size must be typo.
https://cdn.shopify.com/s/files/1/0...allation_Instructions.pdf?7793233193574431098
KDE vs SOLO OEM MOTOR
See below test, this KDE 2315XF 885KV aside from being smooth and no whining like Solo OEM motor ( poor quality bearing I guess )..
.is NOT a more efficient motor. Son a bitch, the Solo motor whine scared the shiet out of me .... LOL. Its high pitch bad bearing sound. I will record this with my high quality instrument mic to let you guys hear a single Solo stock motor at speed. I did record the the Solo and KDE motor test with my Sony RX100mk3 but its audio auto gain cut off lots of the super whining.
The whining is reduced at higher RPM though.
How I do the test is as follows :
01. First test KDE motor with Solo OEM/stock prop, Phantom 3 stock white prop, Phantom 3 carbon prop from DJI at 14.8volt for the time being.
02. Test Solo OEM motor and unfortunately I can only use Solo OEM prop and cant try phantom 3 prop for database sake. Too fat the lower shaft is, as explained. 14.8Volt and 16Volt test.
03. The ESC I use is not from Solo. So the ESC signal value won't be the same as what we read
from Solo's log. Hence I copy and paste Roland test value to let you guys see what I mean.
04. When I got KDE data at 14.8V using Solo's stock prop,I then test again Solo stock motor with stock prop and try to get as close as possible to the propeller RPM as KDE ( its not easy to get to within 10 RPM ). The only reference point I can use is propeller RPM as known work load value for comparison, as the thrust per watt is what we look at for efficiency. Look at the first picture/screen capture above.
The actual CSV file from RC Benchmark dynometer has plenty of parameters, very comprehensive, I don't show all, but if you guys are interested, attached the original CSV file of the above screen shot tests. The Solo motor file is called v3 for 1st screen capture. Its 3rd test I did.
06. I also test what if 14.8V and 16V on Solo OEM motor being compared.
This time I try to get as close as possible the prop RPM on the 14.8Volt test to the 16Volt test, again looking
for a reference point which is propeller RPM. I call the file v2. I will need to do this test again, coz it seems 14.8V is more efficient*.., but me is curious and need to double check.
*which is good , as our battery will drain slowly within minutes of flying.
I will test more, but for now my conclusion is, KDE is not worth it to replace Solo OEM motor.
Better to buy good bearings for Solo OEM motor.
Below I tried to use my KDE data matching as close as possible to KDE test sheet. For today me lazy to do further test which I will match my test RPM to KDE test data....
https://cdn.shopify.com/s/files/1/0...ting_-_KDE2315XF-885.pdf?13250022135093590036
End of Report
