Which plane did you get?

In matching power systems, you ALWAYS start out with the projected AUW of the plane.

If you went with the Ultimate, let's assume an 11 lb plane

If you want aerobatic flying....

11lbs x 150watts = 1650 watts

Let's equate that to HP as a cross check...

1650/745 = 2.2 HP Hmm. Not bad for an 11lb plane swinging a big prop but you may want a bit more power...

Let's take it up to 2000 watts..... and since you have 6S packs...

2000w / 22.2v = 90 Amps

That doesn't look too bad given that you have 5000mAh packs.

So now you need an ESC that can handle 90A continuous ( for safety ) or a 100-120A ESC.

A 2000 watt motor that accepts 22.2 volt input...

Let's assume that you'll spin a prop around 8500 RPM at most...

8500 / 22.2v = 382 KV

A 380KV motor or something in that ball park will do.


2000watts / 745 = 2.68 HP.

Thrust HP says a 17x8 prop swung at 8500 RPM = 2.9 hp while a 17x6 prop swung at the same speed = 2.2 hp.

So I'd choose the 17x8 prop.

That will give you a static airspeed of 48.3 MPH. If you want more speed, use a smaller diameter but higher pitch prop.