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Xmotor 400B 950 kV Outrunner 177 Watts under $60!

Old 08-25-2005, 10:44 PM
2Dogrc's RC Warehouse
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Default Xmotor 400B 950 kV Outrunner 177 Watts under $60!

I am introducing a POWERFUL outrunner, the Xmotor 400B. This smooth running outrunner has a Kv rating of 950 and a max efficiency of 79%. The 12 poles help create MASSIVE TORQUE on a 3.27 mm shaft and weighing only 55 grams. The shaft can be replaced by removing a simple lock nut!

I flight tested this motor to determine actual thrust on different propellers. On 2 cells a GWS 1260 will yield 20 oz, and 3 cells yields 26 oz of thrust! This motor will handle planes from 10-20 oz! This motor is similar to a Hacker A20-20L that retails for $70!

This powerful motor also include:
  • Firewall Mount
  • 3D Wobble Prop Saver
  • 2 O Rings
  • Hardend Steel Prop Adapter
  • 3.5 mm Female plugs for ESC
  • Mounting Screws
This motor is an exceptional value and quality! I offer full support for the motors including extra firewall mounts, shafts, and prop adapters!

This motor comes in a smaller size also, the 300B, 1220 kv!

For More Information Check them out at!

Last edited by 2dogrc; 08-28-2005 at 06:36 AM.
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Old 08-26-2005, 12:45 AM
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Hey 2dogrc,
Could you give me a little more info. about this motor .... current load on different prop sizes etc. Sounds like good value !!
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Old 08-26-2005, 04:21 AM
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I sure can!

These results were all done using GWS props, TowerPro ESC and a 1350 8C Dualsky battery. The power might be a little better with APC props and a Higher C rating battery! To obtain this data we mounted the motor on a device similar to this:
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