Just bought a Sig Banshee 510sq inches what would be some good battery and motor combinations?

I am sure my Nobler setup would work ok---Scorpion 3020 (kV~880 rpm/V) Outrunner Motor, Castle Creation Phoenix 35A ESC, JMP-2 or Ztron timer, FMA 4s2100mAHr battery pack.

Mike Anderson has a Twister Setup in this link which would probably work well too in a Banshee.

http://stunthanger.com/smf/index.php?topic=12003.0

Others will chime in soon too I bet!

For about 10 flights I had this in my banshee
APC12x6 then electric Prop, Scorpion 3020-14  http://www.neoplanes.com/radio-control/scorpion-3020-14-brushless-motor-outrunner .Battery 4S 4000mah,Phoenix 45 in Gov mode(no set rpm at that time). Plane flew very well on it. I could have used a lighter battery(something like a 4s 3000 or so would have been sufficient.) First plane I tested a Will Hubin timer on. This setup was moved to my P40.
I also flew it with an atlas 2921-08 for about 10 flights Same everything else except I used a JMP timer. Currently this plane is sitting without a power system. This power system but with Will hubin timer in SET RPM now has over 80 flights on my ARF Cardinal.

Turnigy 35-36-1100 motor using 10x5 APC-E prop
Phoenix 35 ESC in CL governor mode set to about 10,300 to 10,500 RPM
Will Hubin Timer
4Sx2350 battery

Recommend .015"x 61' to 63', Above set-up should put you areon 4.9-5.2 sec per lap - not a bad speed for the Banshee!

I further agree the Castle Creations Phoenix ESC is the way to go. Shop around for the best price -- there can be a big difference form different sources. Also, get the PC programmer adapter. It runs around 20 bucks (or find an RC or fellow C/L guy who will lone you one). It only takes a few minutes to program the ESC with it.

John

ROGER that!

I don't think the motors are all that different but the designations are a little hard to dechipher.  I keep hanging on to higher kV motors too, and IC sized props (i.e., the Banshee would normally fly on a Fox 35 with a 10x6)

The only thing to keep in mind is what prop you want to use and an approximate rpm that you want to run at. I always use, for the first approximation, the rpm and prop I basically ran with a glow engine. That will set the kV and #cells needed in the battery pack.

Let the rpm target = 0.8*kV*battery voltage ( use ~10.5V for a 3s and 14V for a 4s) sets the rpm level.The 0,8 factor leaves you with surplus for the power in maneuvers.

so if the target is 9000 rpm, then for a 3s battery, you need a kV of at least ~1070 rpm/Volt. If you use a 4s pack, then you can get by with a kV of ~800.

Also note that the 4s battery and 3s battery will have the same overall weight --with the 4s cells being smaller in weight and capacity than the 3s cell (ratio=3/4) --but of course there are 4 of them rather than 3!

These days I am going to larger props than I used with glow, but since they turn slower, I can still use the same motor and battery as calculated above, and simply use the ESC throttle to set the rpm.

I bought 3 used phoenix ESC's off Ebay, 1 35 and 2 45's the total cost was only a little over a single 45 price brand new. All updated to the latest firmware without any drama using the Castlelink software, not sure exactly how "old" they have to be before you can't update the firmware.

Ebay does have it's uses. 

TTFN
John.

I think you already know,but watch your CG closely with that plane.Mine was way nose heavy,but then again I was using a brick sized battery. If I ever set it back up I will use a smaller battery or get my battery back over the wing some. That plane was my first try at electric stunt and I made mistakes. It was also originally set up for gas. Good luck with it.