OK,</p>

lets presume it is 2lbs = 900g empty, just to be on the safe side. We can now presume a total weight of 1400-1500g =3.3lbs ready to fly</p>

To determine my initial setup I always first visit AXI site http://www.modelmotors.cz/ as there is a very nice tool: FAST AXI SETUP , you can find it on the right hand side of the home page.</p>

In that tool you can now choose type of model (in this case aerobatic) and the total weight on take off (in our case 1500g). Lets click on FIND SETUP, the tool now suggests various AXI motors, and as I always prefer to have more reserve of power than AXI suggests I would take 2820/12 which is good up to 2000g aerobatic. The suggested battery in this case is 3S, 40A ESC and 12x6 prop. I do agree with bat, but would take a larger ESC (60A) and the prop is OK. Also by selecting a slightly larger motor you do not need to push it to the max all the time, a lot of benefits for only very small gain in weight.</p>

Now If we want to get an AXI motor we are fine, but if we don't want an AXI what have we learned from this? Any other motor of this size (equal diameter and weight) with this or a kV within 5% difference will be OK. So now we can go and choose whatever we want, Hacker, Scorpion, Turnigy, Hyperion ...</p>

And what battery size: well, the weight is really of big importance only if you plan serious 3D, otherwise some grams extra do not hurt that much, so I would go for something like 3000-3500mAh and at least 25C. Always buy 2 at the same time as may be tomorrow you might need these bats to be used as 6S, but about this at some other occasion .</p>