BENCH AND FLIGHT TESTING RC TIMER 2208/8 2600 KV MOTOR

Hi everyone -

Several weeks ago, I tested this little motor from RC Timer, works really well for planes in the 16-19 oz weight category. http://www.rctimer.com/product_112.html

This motor is quite light, 56 grams with prop, X mount and connectors installed.

I ran through the same series of tests as I did with many previous motors, I tested with a Turnigy Plush 30A ESC as 30A ESC is what RC Timer recommends, I tested 6x4 APC and 6x3 and 6x4 EMP props on low, medium and high settings on my ESC to find the best setup for what I'm looking to get out of this motor.

Here are the results

6x4 APC prop on 50% throttle -

• ESC at low timing - 13.3A/155.8W/429 gr/15.1 oz of thrust/thrust to motor weight ratio 7.7:1, 1.1 oz of thrust per amp drawn;
• ESC at medium timing - 14A/167.3W/445 gr/15.7 oz of thrust/thrust to motor weight ratio 7.9:1/1.1 oz of thrust per amp drawn; and
• ESC at high timing - 14.3A/174.3W/431 gr/15.2 oz of thrust/thrust to motor weight ratio - 7.7:1/1.06 oz of thrust per amp drawn.

6x4 APC prop on 100% throttle -

• ESC at low timing - 28.7A/332.7W/695 gr/24.5 oz of thrust/thrust to motor weight ratio 12.4:1/0.85 oz of thrust per amp drawn;
• ESC at medium timing - 29A/321.7W/720 gr/25.5 oz of thrust/thrust to motor weight ratio 12.8:1/0.8 oz of thrust per amp drawn; and
• ESC at high timing - 30.6A/335.5W/720 gr/25.5 oz of thrust/thrust to motor weight ratio of 12.8:1/0.8 oz of thrust per amp drawn.

6x3 EMP prop on 50% throttle -

• ESC at low timing - 12A/138.9W/485 gr/17.1 oz of thrust/thrust to motor weight ratio of 8.7:1/1.4 oz of thrust per amp drawn;
• ESC at medium timing - 12.9A/149.4W/515 gr/18.2 oz of thrust/thrust to weight ratio of 8.7:1/1.4 oz of thrust per amp drawn; and
• ESC at high timing - 14.2A/164.8W/520 gr/18.3 oz of thrust/thrust to motor weight ratio of 9.3:1/1.3 oz of thrust per amp drawn.

6x3 EMP prop on 100% throttle -

• ESC at low timing - 24.5A/266.2W/795 gr/28 oz of thrust/thrust to motor weight ratio 14.2:1/1.1 oz of thrust per amp drawn;
• ESC at medium timing - 28.8A/332W/805 gr/28.4 oz of thrust/14.4:1/1.0 oz of thrust per amp drawn; and
• ESC at high timing - 27.9A/329W/835 gr/29.5 oz of thrust/thrust to motor weight ratio of 14.9:1/1.06 oz of thrust per amp drawn.

6x4 EMP prop on 50% throttle -

• ESC at low timing - 12A/140.7W/395 gr/13.9 oz of thrust/thrust to motor weight ratio 7.0:1/1.2 oz of thrust per amp drawn;
• ESC at medium timing - 12.6A/147.1W/410 gr/14.5 oz of thrust/thrust to motor weight ratio 7.3:1/1.2 oz of thrust per amp drawn; and
• ESC at high timing - 13.7A/160.5W/415 gr/14.6 oz of thrust/thrust to motor weight ratio 7.4:1/1.1 oz of thrust per amp drawn.

6x4 EMP prop at 100% throttle - 

• ESC at low timing - 28.4A/315.7W/663 gr/23.4 oz of thrust/thrust to motor weight ratio of 11.8:1/0.8 oz of thrust per amp drawn;
• ESC at medium timing - 29A/311.1W/671 gr/23.7 oz of thrust/thrust to motor weight ratio of 12.0:1/0.8 oz of thrust per amp drawn; and
• ESC at high timing - 31A/360W/675 gr/23.5 oz of thrust/thrust to motor weight ratio 12.1:1/0.8 oz of thrust per amp drawn.

The 6x3 EMP prop seems to jump out as the best prop for this motor on the bench, so I won't even bother testing the other two props.  What I did test at the field was the difference between high and low ESC timing as I was getting about 1.5 oz more thrust with high timing than I was with low, but at a higher amp draw.

Here is the video I shot of the field testing

I did definitely get a little more snap and thrust from this motor at high ESC timing, but the motor ran very warm, warmer than I like for the overall health of the setup, so I reverted to low, great performing little motor that definitely punches above it's weight!

I now use it in my FRC Foamies F35 600 which is about 16.5 oz, works awesome!

Cheers,

Scott