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= Test setup = [[ http://gallery3.mikrokopter.de/var/albums/tech/U8_28_135kV_6S.jpg?m=1413802451 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U8_28_135kV_6S.jpg?m=1413802451 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014XF-380_18_6S_Ozkan.gif?m=1413802069 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_18_6S_Ozkan.gif?m=1413802069 }} ]] = 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) [[http://gallery.mikrokopter.de/main.php/v/tech/MK3538_characteristic_curve_0-8A_howto.GIF.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=67421}}]] 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 |
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= Thrust courves of different motors = * How to read the courves is described here: [[en/FlightTime#how_to_read_the_curves|How]] * please note that the unit of the current s in 10mA - that means: 100 is 1A and 1000 is 10A * If there are courves Thrust vs. Setpoint -> 2550 = 100% -> 1270 = 50% |
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Successfuly Tested on BL V3 (Firmware 1.10) | |
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= MK3638 4S = [[ http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve.gif?m=1409673363 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/MK3538_characteristic_curve.gif?m=1410812398 }} ]] = Altigator A5050 = Successfuly Tested on BL V3 (Firmware 1.10) == Altigator A5050 16x5 XOAR 4S == [[ http://gallery3.mikrokopter.de/var/albums/tech/Altigator_A5050_4S_16x5_TvsI.gif?m=1413802701 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/Altigator_A5050_4S_16x5_TvsI.gif?m=1413802701 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/Altigator_A5050_4S_16x5_TvsS.gif?m=1413802706 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/Altigator_A5050_4S_16x5_TvsS.gif?m=1413802706 }} ]] == Altigator A5050 16x6 XOAR 4S == [[ http://gallery3.mikrokopter.de/var/albums/tech/Altigator_A5050_4S_16x6_TvsI.gif?m=1413802709 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/Altigator_A5050_4S_16x6_TvsI.gif?m=1413802710 }} ]] |
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Tested on BL V3 (Firmware 1.10) | Successfuly Tested on BL V3 (Firmware 1.10) |
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Tested on BL V3 (Firmware 1.10) | Successfuly Tested on BL V3 (Firmware 1.10) |
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[[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4012XF_400_16_6S_Graf_TvsS_csv.gif?m=1413800902 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4012XF_400_16_6S_Graf_TvsS_csv.gif?m=1413800902 }} ]] == KDE4012XF_400 17" 6S == [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4012XF_400_17_6S_Graf_TvsI.gif?m=1413801158 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4012XF_400_17_6S_Graf_TvsI.gif?m=1413801158 }} ]] == KDE4012XF_400 18" 6S == [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4012XF_400_18_6S_Graf_TvsI.gif?m=1413801161 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4012XF_400_18_6S_Graf_TvsI.gif?m=1413801162 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4012XF_400_18_6S_Graf_TvsS.gif?m=1413801167 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4012XF_400_18_6S_Graf_TvsS.gif?m=1413801167 }} ]] = KDE4012XF/400 = Successfuly Tested on BL V3 (Firmware 1.10) [[ http://gallery3.mikrokopter.de/var/resizes/tech/KDE4014XF-380_18_6S_1.JPG?m=1413801490 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_18_6S_1.JPG?m=1413801490 }} ]] == Compare to MK3644 == [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014_vs_MK3644.gif?m=1413801391 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014_vs_MK3644.gif?m=1413801392 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014XF-380_16_6S_graph_TvsI.gif?m=1413801396 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_16_6S_graph_TvsI.gif?m=1413801397 }} ]] == KDE4012XF/400 16" 6S == [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014XF-380_16_6S_graph_TvsI.gif?m=1413801396 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_16_6S_graph_TvsI.gif?m=1413801397 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014XF-380_16_6S_graph_TvsS.gif?m=1413801399 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_16_6S_graph_TvsS.gif?m=1413801400 }} ]] == KDE4012XF/400 17" vs. 18" 6S == [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014XF-380_17And18_6S_graph_TvsI_Compare.gif?m=1413801486 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_17And18_6S_graph_TvsI_Compare.gif?m=1413801486 }} ]] == KDE4012XF/400 18" 6S == [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014XF-380_18_6S_graph.gif?m=1413801494 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_18_6S_graph.gif?m=1413801494 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/KDE4014XF-380_18_6S_graph2.gif?m=1413801981 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/KDE4014XF-380_18_6S_graph2.gif?m=1413801981 }} ]] = T-Motor U5/400 = Successfuly Tested on BL V3 (Firmware 1.10) == T-Motor U5/400 16" == [[ http://gallery3.mikrokopter.de/var/albums/tech/U5_16x55_6S-01.gif?m=1413802197 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U5_16x55_6S-01.gif?m=1413802197 }} ]] == T-Motor U5/400 16" == [[ http://gallery3.mikrokopter.de/var/albums/tech/U5_400_18_Critical2-01.gif?m=1413802206 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U5_400_18_Critical2-01.gif?m=1413802206 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/U5_400_18_Critical-01.gif?m=1413802201 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U5_400_18_Critical-01.gif?m=1413802201 }} ]] 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) == T-Motor U7/490 18" == [[ http://gallery3.mikrokopter.de/var/albums/tech/U7_490kV_4S_18_TvsI.gif?m=1413802446 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U7_490kV_4S_18_TvsI.gif?m=1413802447 }} ]] = T-Motor U8/135 = Successfuly Tested on BL V3 (Firmware 1.10)) == T-Motor U8/135 28" 6S == [[ http://gallery3.mikrokopter.de/var/albums/tech/U8_28_135kV_6S_Test4_up_down.gif?m=1413802455 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U8_28_135kV_6S_Test4_up_down.gif?m=1413802456 }} ]] [[ http://gallery3.mikrokopter.de/var/albums/tech/U8_28_135kV_6S.jpg?m=1413802451 | {{ http://gallery3.mikrokopter.de/var/thumbs/tech/U8_28_135kV_6S.jpg?m=1413802451 }} ]] |
see also:
Test setup
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
Inhaltsverzeichnis
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
KDE4012XF/400
Successfuly Tested on BL V3 (Firmware 1.10)
Compare to MK3644
KDE4012XF/400 16" 6S
KDE4012XF/400 17" vs. 18" 6S
KDE4012XF/400 18" 6S
T-Motor U5/400
Successfuly Tested on BL V3 (Firmware 1.10)
T-Motor U5/400 16"
T-Motor U5/400 16"
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)
T-Motor U7/490 18"
T-Motor U8/135
Successfuly Tested on BL V3 (Firmware 1.10))