Yeah NP sells the clone of the Hacker A20-20L which is what I was going to use, except they were out at the time.

I had pushed the numbers for this motor through one of the on-line plane calculators and while it will not give unlimited verticals it should be able to hover the plane at higher throttle with the right prop.

It will certainly give you plenty of acrobatic power. Just make sure you use one of the "E" props and use the calcs to figure out how much run time you want.

You can sacrifice run time for performance, so you could get fast flight and good vertical for a shorter period of time with the LiPo's, or you can opt for slightly slower flight and longer flight times.

I went with the latter, yet there is more than enough a reserve for acrobatics... I usually bring it in after 20 minutes, so I don't have to deal with the low power cut off.

I don't have an exact figure for a full run time on my setup yet, so what I did (but have been unable to complete because of the weather) is I run the battery until I'm concerned about remaining current, then note how many minutes of flight I had.

I then take the battery (home) and charge it, noting the amount of energy that went back into the battery.

e.g. if my 2200 mAh batteries ran for 15 minutes, and I take it home and find that the battery only accepted 1200 mAh charge I know that I'll have at least an additional 7-8 minutes of flight time before I have to bring the plane down in the future.



I wish that NP would pick up some of the bigger Tower Pro motors.

I've had great luck with the 2915-5D's and larger on 3lb+ planes and I'd like to try the bigger TP .40 & .46 equivalents.

I know that these motors are no where as efficient as say the hackers, but for the low price I'm very happy with them.

I put a 2915-5D in a GP Super Sportster EP which turned it into a space ship. It SCREAMS with two 2200mAh 3S 12C LiPos (the ones which NP sells) in parallel, using a 60Amp TP ESC.