MUGI EVO TEA RACER TUTORIALS MULTIMEDIA INFO

Miscellaneous - Motor Test Rig and Motor/Prop Figures

THE MOTOR TEST RIG
THE MOTOR TEST RIG
Motor tests - a more scientific approach

We long extolled the virtues of the equipment we both use in our hobby and sell in our online shop but it's always been rather subjective and free from anything remotely scientific.

We've had some test equipment for ages but never really gotten around to firing it all up and seeing what our motor and prop combinations can do.

The setup photographed above is how we got the following figures. The motor is held securely in the vice pointing vertically upwards and the scales under the vice are zeroed. This allows us to get a rudimentary firgure for static thrust. Not very exact but a nice basis for comparison.

Static thrust and static load current reduce quite considerably in flight as the prop moves through air that is moving relatively rather than churning in still air.

The figures

Motor:

ENER-G 2000kV brushless, max 20A continuous

Propellor:

Microspeed Plastic Propeller 130x125 (5"x 5")

 

on a Prop-Saver 3.2mm

ESC:

E-Pro SP30A-BEC-AIR brushless controller

Battery:

ENER-G PRO 20C 11.1V 1800mAh LiPo

   

RPM:

18,500 rpm

Current:

18 Amps static

Thrust:

540g static - the Evo with this setup weighs 490g!

Voltage:

12.00 V

Power:

216 W

We'll publish more bench tests as we trial new motors but for now the figures make some intresting reading. Good setup for great performance on a 490g model!

 

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