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== BL-Settings == If not other noticed, these curves were recorded with: * 24° Timing * 20kHz |
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[[ http://gallery3.mikrokopter.de/var/resizes/tech/KDE3520XF_400kV_Eprop-01.jpg?m=1413884213 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE3520XF_400kV_Eprop-01.jpg?m=1413884213 }} ]] |
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Successfuly Tested on BL V3 (Firmware 1.10) == T-Motor U7/490 18" == |
Successfuly tested on BL V3 (Firmware 1.10) The U7/490 runs perfectly on the BL V3, but we would recommend to select a lower rpm/V and run them on 6S. == T-Motor U7/490 13" 6S == [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_16x55_TvsS.gif?m=1413883146 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_16x55_TvsS.gif?m=1413883146 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_6S_13_TvsS.gif?m=1413883153 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_6S_13_TvsS.gif?m=1413883154 }} ]] == T-Motor U7/490 15x5,5" 4S == [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_15x55_TvsI.gif?m=1413882881 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_15x55_TvsI.gif?m=1413882881 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_15x55_TvsS.gif?m=1413882885 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_15x55_TvsS.gif?m=1413882885 }} ]] == T-Motor U7/490 16x5,5" 4S == [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_16x55_TvsI.gif?m=1413882890 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_16x55_TvsI.gif?m=1413882891 }} ]] == T-Motor U7/490 17x5,8" 4S == [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_17x58_TcsI.gif?m=1413883265 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_17x58_TcsI.gif?m=1413883266 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_18_%2842ALimit%29_TvsS_csv.gif?m=1413883557 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_18_%2842ALimit%29_TvsS_csv.gif?m=1413883557 }} ]] == T-Motor U7/490 18" 4S == /!\ Note: the 490rpm/V in combination with 18" Prop results in overcurrent (higher that 45A) '''BL-Firmware 1.06''' |
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'''BL-Firmware 1.10:''' [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_18_TvsI_V1_10.gif?m=1413883274 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_18_TvsI_V1_10.gif?m=1413883274 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_18_%2842ALimit%29_TvsS_csv.gif?m=1413883557 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_18_%2842ALimit%29_TvsS_csv.gif?m=1413883557 }} ]] |
see also: FlugZeit FlightTime
Inhaltsverzeichnis
Test setup
BL-Settings
If not other noticed, these curves were recorded with:
- 24° Timing
- 20kHz
How to read the curves
With this curves it is easy to estimate the needed current and even estimate the flight-time.
- please note that the unit of the currents are in the most graohs in 10mA - that means: 100 is 1A and 1000 is 10A
If there are courves Thrust vs. Setpoint -> 2550 = 100% -> 1270 = 50%
You can get the needed current for each needed thrust
Example
The total weight of a MikroKopter (4 Rotors) is 1400g -> so each motor needs a thrust of 350g for hovering (1400g / 4 = 350g)
Current needed for 350g with the 13x6,5 APC - Propeller? -> 1,8A
Current needed for 350g with the 12x8 APC - Propeller? -> 2,4A
The total current for all four motors would be 7,2A (4 * 1,8A) or 9,6A (4 * 2,4A)
Flight time
You can estimate the flight time with this formular:
Time = 54 * Lipo / Current
(54 because we estimate 10% losses -> 60 * 0,9)
In case we would have a 3300 Lipo (3,3Ah), the Flight time for the 13x6,5 would be:
Time = 54 * 3,3 / 7,2 = 24,7 min
The same for the 12x8 Prop:
Time = 54 * 3,3 / 9,6 = 18,5 min
That is a different of 33% in flight time!
See also: FlugZeit
MK3644/24
Successfuly Tested on BL V3 (Firmware 1.10)
MK3644/24 12" Prop 25V
MK3644/24 13" Prop 25V
MK3644/24 14" Prop 25V
MK3644/24 15" Prop 25V
MK3644/24 Propeller comparison
(full range and 0-10A range)
MK3644/24 Thrust vs Setpoint
MK3638 4S
Altigator A5050
Successfuly Tested on BL V3 (Firmware 1.10)
Altigator A5050 16x5 XOAR 4S
Altigator A5050 16x6 XOAR 4S
KDE3520XF/400kV
Successfuly Tested on BL V3 (Firmware 1.10)
KDE3520XF/400kV 14x8" Eprop 6S
KDE3520XF/400kV 15x5" 6S
KDE3520XF/400kV 16x5,5" 6S
KDE4012XF/400
Successfuly Tested on BL V3 (Firmware 1.10)
KDE4012XF_400 16" 6S
KDE4012XF_400 17" 6S
KDE4012XF_400 18" 6S
KDE4014XF/380
Successfuly Tested on BL V3 (Firmware 1.10)
Compare to MK3644
KDE4014XF/380 16" 6S
KDE4014XF/380 17" vs. 18" 6S
KDE4014XF/380 18" 6S
T-Motor U5/400
Successfuly Tested on BL V3 (Firmware 1.10)
T-Motor U5/400 16"
T-Motor U5/400 18"
Note: In combination of 18" and 6S Lipo, the motor starts to generate commutation problems at higher currents. We recommend to operate this motor max. with 17" or better with 16" Propellers
T-Motor U7/490
Successfuly tested on BL V3 (Firmware 1.10)
The U7/490 runs perfectly on the BL V3, but we would recommend to select a lower rpm/V and run them on 6S.
T-Motor U7/490 13" 6S
T-Motor U7/490 15x5,5" 4S
T-Motor U7/490 16x5,5" 4S
T-Motor U7/490 17x5,8" 4S
T-Motor U7/490 18" 4S
Note: the 490rpm/V in combination with 18" Prop results in overcurrent (higher that 45A)
BL-Firmware 1.06
BL-Firmware 1.10:
T-Motor U8/135
Successfuly Tested on BL V3 (Firmware 1.10))