
Originally Posted by
Flateric
Here are some of my findings regarding props and battery in relation to flight times.
All tests are performed in the same conditions and at a stationary hover for precisely 10 minutes. Also all test are well above any ground effect, performed at a height of 8 meters.
Amount of mAh consumed is measured by amounts charger needed to recharge pack to full again after run. (Sorry my inflight static consumption was not available yet as my OSD had not arrived yet)
The test setup configuration;
Controller-
Naza M V2 (flashed from a Naza Lite to a V2 *easy quick and well worth the effort IMO)
Frame-
Aimdroix Frame in Y6 configuration.
Arms are the Aimdroix extended Aluminium Arms V2
Motors-
Tmotor MN4014-11 KV-330 (matched set motors)
ESC-
Tmotor S45A Preflashed with SimonK firmware
Battery (except where noted different)-
4S-Lipo Single pack, 8000mAh
Environment related data-
1045m (3428 ft) Humidity 37% Barometric Press 101 kPa Wind 2kph Temp 13c (55.4f)
Test1-
Tmotor props 16x5.4 (top and bottom)
mAh consumed = 4006 mAh
Test2-
Gemfan props 16x5.5 (top and bottom)
mAh consumed = 4654 mAh
Test3-
Gemfan props 14x5.5 (top)
Gemfan props 16x5.5 (bottom)
mAh consumed = 4589 mAh
*experienced undesirable YAW slowly to the right. Could not correct.....?
Test5- (Note: battery and configuration changes!)
Quadcopter
Tmotor Props 16x5.4
4s mAh consumed = 3231
6s mAh consumed = 3335 (much heavier battery 6s - 12500 mAh)
New tests will follow in the next week or so of the frame in an X8 setup, same motors etc.
Also of note I did try installing my Arielmob arms from my TBS discovery frame just for interest. This allowed me to install up to 20" props on the frame (in an odd config of over under arrangement that overlapped the front and back blades in a quad configuration)
I also used a single Arielmob arm for some other flight testing. This allowed me to use 18" props both top and bottom in the Y6 config because of the longer arm out back.
I have since switched back to the Aimdroix arms all around for the Aimdroix frame. A few reasons for this. When using the AM arms I found that the very large carbon props picked a notable resonating sound and vibration from my low KV motors. This did not occur with the aluminium arms at all. When using a single AM arm out back on the Y6 setup it still occured but didnt seem to be as bad or feed the resonations off each other from the other arms since they were not there. A bigger problem for me was the fact that they are easier to install of level and tilted which caused many stability problems. So they are wonderful arms on a smaller quad with smaller motors but didnt perform for me with large motors and a large frame.
Hope this info is of some use to you guys, let me know what you think.