RCP MIG 29 V3 BUILD DAY 3 AND MORE MOTOR TESTING

I finished sanding my Mig 29 today, dry fitted all the servos and made my carbon fibre pushrods.  The paint job is about half done now, just need to put the black on and then do the final touch ups.

I put another motor through it's paces on the bench today, the RC Timer 2212-6 2200 Kv motor http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=116&productname=

I tested at low, medium and high timing settings on my Turnigy Plush 30A ESC for three different props 6x4 APC, 6x3 EMP, 6x4 EMP. The motor is brand new out of the package, the one I was testing on my F18 had a couple bad bearings in it, so I used a new one which ran much smoother.
Here are the findings for the 6x4 APC prop at 50% throttle -

• ESC at low setting - 11.45A/134.4W/442 gr/15.6 oz of thrust;
• ESC at medium setting - 12A/140.5W/444 gr/15.66 oz of thrust; and
• ESC at high setting - 12A/140W/434 gr/15.3 oz

6x4 APC prop at 100% throttle -

• ESC at low setting - 22.78A/263.4W/654 gr/23.07 oz of thrust;
• ESC at medium setting - 22.62A/251.8W/614 gr/21.7 oz of thrust; and
• ESC at high setting - 26.27A/307.6W/669 gr/23.6 oz of thrust

6x3 EMP prop at 50% throttle -

• ESC at low setting - 12.9A/157W/470 gr/16.6 oz of thrust;
• ESC at medium setting - 11.9A/142.7W/542 gr/19.1 oz of thrust; and
• ESC at high setting - 13.9A/170.5W/528 gr/18.6 oz of thrust

6x3 EMP prop at 100% throttle -

• ESC at low setting - 20.9A/253W/670 gr/23.6 oz of thrust;
• ESC at medium setting - 23.5A/282.9W/825 gr/29 oz of thrust; and
• ESC at high setting - 22.7A/261.7W/790 gr/27.9 oz of thrust

6x4 EMP prop at 50% throttle -

• ESC at low setting - 12.3A/152.8W/500 gr/17.6 oz of thrust;
• ESC at medium setting - 12.8A/153.3W/485 gr/17.1 oz of thrust; and
• ESC at high setting - 12.17A/143.4W/490 gr/17.3 oz of thrust

6x4 EMP prop at 100% throttle -

• ESC at low setting - 21.25A/245.9W/765 gr/27 oz of thrust;
• ESC at medium setting - 21.7A/249.2W/765 gr/27 oz of thrust; and
• ESC at high setting - 26.2A/307.2W/805 gr/28.4 gr of thrust.

I think it is pretty obvious that this is a motor that prefers EMP props over APC from a standpoint of efficiency and power. I looked back at my writeup when I did the field testing on this motor on my F18 and although I at first felt I was getting better performance from the 6x4 EMP, I changed my mind after the fact and felt the 6x3 EMP was a better choice. And that was running all three props on low timing. 

I find it an interesting discovery in the relationship between the different props and the timing setting on the ESC.

The two 6x4 props seem to be most efficient (ie best thrust for the amp draw) at low setting on this motor, where the 6x3 EMP prop definitely performed the best of all the props on a medium setting. I am pleasantly surprised at those numbers for such an affordable motor for sure! To have 19 oz of thrust at half throttle at just over 11 amps and 29 oz of thrust at full throttle for 23.5 amps is pretty darn good performance in my book!

If you read the first review written on this motor, a person claimed to get 28 oz of thrust on a 6x4 APC and 32 oz of thrust on a 6x3 EMP. I didn't get those numbers, but I definitely got the better performance all round with the 6x3 EMP prop on medium timing on my setup anyway.

I forgot to add that I used a freshly charged battery each time, 3S 30-40C discharge.

So as I may have mentioned in my field review this motor is a definite step up in performance over the MJV3 if you are looking for a little extra punch. It is 11 gr heavier, and best to be paired with an EMP prop, 6x3 preferably. I know it has been mentioned numerous times, but it is very important to balance the EMP props, they are notoriously out of balance out of the package, but a little time balancing it gives great performance!

Anyway, interesting information to use to get the maximum performance out of this motor...for me anyway, hope it is of help to you!

Cheers,

Scott