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Hacker E50-XL 3D Motor 39mm 700Kv View larger

Hacker E50-XL 2.5D Motor 39mm 850Kv

HAK-E50-XL 2.5D

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Hacker E50-XL 2.5D Motor 39mm 850Kv. 4-pole inrunner motor for 100-110mm fans.

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Data sheet

Length (mm): 103.8 mm
Weight (gr): 535 gr
No. of Magnet Poles: 4 poles
Turns/min/Volt (Kv): 850 Kv
Motor Type: In-Runner
Motor Diameter (mm): 39
Shaft diameter (mm): 8

More info

Hacker E50-XL 1.5D Motor 39mm 850Kv

4-pole inrunner motor for 100-110mm fans and 10-12S batteries.


  • Diameter: 39.1 mm 
  • Length: 103.8 mm
  • Shaft Dia.: 8 mm
  • Internal shaft Dia.: na
  • Weight : 535 grams
  • R(I) : 11.8 mOhm
  • I(0)@3.1V : 3.5A
  • KV: 850
  • Poles: 4
  • Recommended advance timing: 5-10°
  • Recommended frequency: 8 Khz
  • Motor Type: Inrunner

Measured values with Jetfan 110 Pro:

Voltage under load: 37V

  • Current: 120A
  • Thrust in grams: 7000

Voltage under load: 44.4V

  • Current: 160A
  • Thrust in grams: 9200

WARNING: Operating the motor outside of the specifications listed above can either damage the motor, battery or esc. It is important that these components are set up properly. Failure to do so can void the warranty. It is strongly encouraged to use a Watt Meter to test the watt and amp performance when setting up a new system. If the output is above the factory recommended specs, then it needs to be adjusted by the esc. The timing and throttle settings on the esc can help to set the appropriate levels.
Warning: Screws that are too long can short out the windings resulting in a cooked motor, this is not covered by warranty



Top kwaliteit.

Eerste motor die ik monteerde in mijn Viper XL van Black Horse was de Typhoon HET EDF 700-75 39mm 760Kv maar had te weinig vermogen doordat ik de stroom beperkten tot 90A bij 46V li-ion cellen en toch halfweg tweede vlucht motor verbrandt waarschijnlijk doordat hij geen koelsleuven heeft voor inwendige koeling.
Nu met de Hacker E50-XL 2.5D 39mm 850Kv en de Jetfan 110 Pro gans ander verhaal, deze motor word amper 45 graden door de koelsleuven en begrens ik de stroom tot 120A bij 46V dus 5520W en heb ik meer dan voldoende vermogen voor de 9kg wegende Viper.
Motor kan tot 150A aan maar de Li-ion cellen niet.

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Hacker E50-XL 2.5D Motor 39mm 850Kv

Hacker E50-XL 2.5D Motor 39mm 850Kv

Hacker E50-XL 2.5D Motor 39mm 850Kv. 4-pole inrunner motor for 100-110mm fans.


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