KMS KBM31/21 Brushless Outrunner. 2-3LiPo

High Performance Brushless Motor without the High Performance Price

KMS motors and speed controllers are designed for great performance in all of your modeling applications. The KMS engineers designed superb performance without the high price tag. With a full line of products and specifications, KMS has the perfect option to suit your need.

This motor is designed for models that require a slower RPM operation using bigger Slowfly style propellers. Particularly suited to indoor models and lightweight aerobatics. A great motor to power the any of the 'flat foam' type models available.

Supplied complete with pre-soldered, male 2mm gold connectors and a CNC machined aluminum propeller driver for APC Slowfly props. You can aslo fit propellers designed to mount with 3mm nyloc nuts on either side as these are supplied too.

Note: KMS speed controllers available from Radio Active Models are also pre-fitted with 2mm female gold connectors for easy compatibility and less messy soldering!.

Motor Type Brushless Outrunner RPM per Volt 1260
Weight 57.5g KV RPM N / A
Can Length N / A No Load Current N / A
Shaft Length 31mm Max Efficiency Current N / A
Can Diameter 28mm Max. Surge Current N / A
Shaft Diameter N / A Max. Continuous Current 13A
Ni-Cd / Ni-MH Cells N / A Max. Efficiency 80%
LiPo Cells 2-3 LiPo Max. Constant Watts N / A
Recommended Propeller Range 2 LiPo 9x4, 9x3.8, 3 LiPo 8x4 Resistance N / A
Recommended Model Weight
N / A
Pole N / A
Bearings N / A Input Voltage 7.2 – 12.6
Turns N / A ESC Timing Degrees N / A