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MK3638 V2



http://gallery3.mikrokopter.de/var/thumbs/intern/MK-Baugruppen/MK3638_V2/MK36385V2.jpg?m=1420559771

Shoplink: MK3638 V2




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.

http://gallery3.mikrokopter.de/var/albums/tech/MK3538e.jpg?m=1409673360

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
http://gallery3.mikrokopter.de/var/albums/tech/MK3538.jpg?m=1409674288

Mounting 3-hole of propeller
http://gallery3.mikrokopter.de/var/albums/intern/MK-Baugruppen/MK3638_V2/3holemount.jpg?m=1420641749 http://gallery3.mikrokopter.de/var/albums/intern/MK-Baugruppen/MK3638_V2/3holemount_1.jpg?m=1420641750 http://gallery3.mikrokopter.de/var/albums/intern/MK-Baugruppen/MK3638_V2/3holemount_2.jpg?m=1420641751

Mounting 1-hole of propeller
http://gallery3.mikrokopter.de/var/albums/intern/MK-Baugruppen/MK3638_V2/MK36385V2.jpg?m=1420641752 http://gallery3.mikrokopter.de/var/albums/intern/sonstiges/Propellermontage.jpg?m=1409706561

Thrust over current

http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve.gif?m=1409673363

MK3638 16V (4S) 12" Carbon

http://gallery3.mikrokopter.de/var/albums/tech/MK3638_4S_12Zoll_TvsI.gif?m=1418913043

http://gallery3.mikrokopter.de/var/albums/tech/MK3638_4S_12Zoll_TvsS.gif?m=1418913053

http://gallery3.mikrokopter.de/var/albums/tech/MK3638_4S_12Zoll_Efficiency.gif?m=1418913060

MK3638 4S 14" Carbon

http://gallery3.mikrokopter.de/var/albums/tech/MK3638_4S_14x45_TvsS.gif?m=1436461393

http://gallery3.mikrokopter.de/var/albums/tech/MK3638_4S_14x45_TvsI.gif?m=1436461385

MK3638 4S 15" Carbon

http://gallery3.mikrokopter.de/var/albums/tech/MK3638_4S_14x45_TvsS.gif?m=1436461393

http://gallery3.mikrokopter.de/var/albums/tech/MK3638_4S_14x45_TvsI.gif?m=1436461385

Different props

http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve.gif?m=1409673363

Same curve in higher resolution:

http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve_0-8A.gif?m=1409673365

APC Propellers

http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve_APC.gif?m=1409673368

13x6,5 APC

http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve_APC13x6_5.gif?m=1409673366

EPP-CF (chopped fiber)

http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve_EPP_CF.gif?m=1409676725

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)

http://gallery3.mikrokopter.de/var/albums/tech/MK3538_characteristic_curve_0-8A_howto.GIF?m=1409673369

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




KategorieMotoren