RMRC Nano Skyhunter - Part 2

The RMRC Nano Skyhunter is basically the same bird as the Eachines Micro Skyhunter, and I've had a couple of those. Neither of the Eachine planes flew well and this was largely due to the plane's inherit nose heaviness, this was an issue when using a 1300 or 1400mah 3s battery. I reviewed the weight of smaller 1000mah 3s batteries and they are only about 10g lighter so I don't suppose using one of those will help much and I'd give up a significant amount of battery capacity.

The stock motor on the Eachine Micro Skyhunter is a 2204 2300kv unit that weighs in at 25g. I have a Cobra 2208 2000kv motor available ( 9 dollars on sale ) that weighs in at nearly twice the 2204's weight, at 47g. I had used a roll of several nickles as weight to balance my previous Micro Skyhunter so the extra 23g weight of the 2208 2000kv motor should be ok.

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I had some concern about the lower kv rating of the 2208 and how that would impact thrust. I don't have test charts for the stock 2204 2300kv available but reviewing the Cobra test charts for their 2204 2300kv, and the 2208 2000kv is insightful.

http://www.innov8tivedesigns.com/images/specs//Cobra_CM-2204-28_Specs.htm

http://www.innov8tivedesigns.com/images/specs/Cobra_CM-2208-20_Specs.htm

The APC 6x4 prop in the chart draws more than the rated 17A for the little 2204, not good. However the same APC 6x4 prop on the 2208 is very usable, produces nearly as much thrust, and draws approximately 3A less of current while doing so. Given this, I'll likely use the Cobra 2208 2000kv with the APC 6x4EP, or perhaps a APC 6x4.2x3 prop on the Nano Skyhunter build with a 30A ESC.