3 cell

[lee213]

has anyone had experience with a 3 cell lipo with stock motor i.e flown it without burning it out please could anyone give me any information about this as i need MORE POWER without buying new electrics and motor
any information will be a great help
thanks
lee

[NorCalAirman]

I'm pretty sure the LP Super Cub uses the same motor as the old . . . I mean CLASSIC Super Cub. I'll have to compare mine to my neighbor's LP. Anyway, the LP Super Cub uses a 3S, so you should be good. I'm sure the other guys will chime in with hard facts shortly, just in case I've misspoken.

[NorCalAirman]

Okay, I just checked and it's the same exact part number on HobbyZone.com. I think the thing you really want to think about is protecting the other components from being fried. The RX/ESC is NOT interchangeable.

[flydiver]

The old STOCK RX/ESC combo is exactly the same as the 'new' LP RX/ESC ---but the jumper is pulled to make it lipo friendly.
See this link:
supercubclub.proboards.com/index.cgi?board=ts&action=display&thread=988

The bind-n-fly Cub uses an entirely different RX/ESC based on Spektrum 2.4.

You should down prop to an LP version of 9x6, a GWS 10x6, or an APCe 10x5 to not burn out the motor and/or fry the ESC.

BTW - ultimately you will actually learn more with that level of power than the over powered versions. With lots of power you end up flying a prop dragging a chunk of foam called an airplane around behind it. It's not the same experience.

[NorCalAirman]

Apr 5, 2011 22:39:00 GMT 1 flydiver said:

The old STOCK RX/ESC combo is exactly the same as the 'new' LP RX/ESC ---but the jumper is pulled to make it lipo friendly.
See this link:
supercubclub.proboards.com/index.cgi?board=ts&action=display&thread=988

Ah, I stand corrected, sir.

[will]

When you buy the float kit, it comes with a 10x8. I've had no problems with this so far, even hauling the camera around. I cruise around at half throttle. My neighbor runs his really hard and it's been fine as well.

[flydiver]

Apr 5, 2011 22:58:13 GMT 1 will said:

When you buy the float kit, it comes with a 10x8. I've had no problems with this so far, even hauling the camera around. I cruise around at half throttle. My neighbor runs his really hard and it's been fine as well.

And I don't understand that. That 10x8 system pulls around 18-19A at WOT. Near as I can figure the ESC is ~15A. Since HZ went lipo THEY propped down to the 9x6 and that pulls ~13A at WOT on 3S. LOTS more ESC are frying on a routine basis since they went lipo. I've got to think it is pretty close to it's maximum spec. They still recommend 10x8 on floats.
Go figure.

[lee213]

you said the 10x8 pulls 18-19 at WOT what does the 10x6 gws pull?

[ginginho]

Apr 6, 2011 0:44:12 GMT 1 flydiver said:

Go figure.

Cheaper and easier for them than manufacturing another size I'd wager.

[flydiver]

Apr 6, 2011 8:05:40 GMT 1 lee213 said:

you said the 10x8 pulls 18-19 at WOT what does the 10x6 gws pull?

~13A full lipo, 3S @ WOT.
Here are some (limited) tests.
supercubclub.proboards.com/index.cgi?action=display&board=batt&thread=1831&page=1

New fliers generally don't have wattmeters. So little testing has been done on the stock system. The only rigorous prop tests were pulled off line a long time ago and the LP version was 2 still years away.

Remember folks, EVERYTHING in the LP is EXACT SAME STOCK ELECTRONICS as an old 7-cell Cub. They improved nothing. You get a lipo, a new smaller prop, and they pull the jumper. Sure, more power, but there seem to be some issues that result from the stressed electronics.

[will]

If I had a wattmeter I'd check. But I don't

It's been fine on both of these planes. I'll let you know when/if it fails.

My buddy tried the 9x6 and floats...not enough prop. He said it was really difficult to get it up off the water and it flew like crap.