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MK3638 V2 |
Shoplink: MK3638 V2
Inhaltsverzeichnis
Shoplink: MK3638 V2
Features
This motor has long wires (52cm), a short shaft and a small clipring. So it can be mounted directly on the aluminium arm.
Technical data
Voltage Lithium: |
3-6 |
Current: |
max 20A |
Current max. (60 Sek.): |
25 A |
RPM/V: |
770 Rpm/V |
Propellers: |
10" - 14" |
Efficiency: |
must still be measured |
Electrical power: |
max 350 W |
Thrust max.: |
max 2200 g |
Weight (only motor) |
100g |
Weight incl. cable and adapter |
125g |
Dimensions: |
h=38 d=35 mm |
Shaft diameter: |
4 mm |
Mounting plan
Mounting holes for rigger
Mounting 3-hole of propeller
Mounting 1-hole of propeller
Thrust over current
Different props
Same curve in higher resolution:
APC Propellers
13x6,5 APC
EPP-CF (chopped fiber)
How to read the curves
With this curves it is easy to estimate the needed current and even estimate the flight-time.
You can read 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
Rotation direction
Clockwise (seen from above)
Connection:
- A = gray
- B = blue
- C = black
Counter-clockwise (seen from above)
Connection:
- A = blue
- B = gray
- C = black