More power/speed?

[patinsunnyhills]

Everything on the plane is stock. I fly with the 9.6 volt. Is there a trick to gaining more power without upgrading any component except for maybe the prop but without burning out the motor?

[flydiver]

Essentially, nope.

If the batteries are new a few cycles (just fly them) will improve them.
Then charge them RIGHT before flying. Top them off with the DC charger (Oh, yeah, you can't) on the way to flying.
Pop them in while warm and have about 2" of more spunky flying.

NiMh lose 10% of their charge within 24 hours and 13%/day there after.
Best used FRESH and warm. Cold and old doesn't cut it.

[patinsunnyhills]

Yeah by the way ... whats up with the car charger? It dont seem to want to work with my 9.6 volt. Works good with the stock 8.4.

[flydiver]

Read the manual, only good for 7-cell.

[gagallagher04401]

Has anyone every adjusted there timing on there motor to get more out of it? (without turning the magnet to far and raising the amps to much and burning her up) keeping an eye on it with a meter.

Is there another brushed motor out there one can purchase to give the plane some more get up and go?

Thanks
George

[flydiver]

You are trying to juggle jello.
Put on a bigger prop > something fries.
Put on a bigger motor (yes there are more powerful brushed motors-check out the car folks), then the battery can't handle it. NiMh are more limited in their draw than lipo.

The Cub is a SYSTEM. It's functional, balanced, and amazingly decent AS IS. There isn't a lot WORTH doing unless you 1. Go lipo and leave everything else alone. 2. Gut it and start over.

I will say the re-timing is an interesting notion. That might be a possible tweak. Read about it, used to be common before brushless motors or when they were still expensive, and apparently it works. Never done it myself so can't help with particulars but would be interested if you try. Wattmeter data before and after would be great.

[gagallagher04401]

I think I am going to buy another motor and try it. The trick is going to be finding that "sweetspot"

[flyer88]

For what it's worth. I've flown a SC on a Lipo on a complete stock set up for over a year and had no problems with current destroying any of my electronics. I ran an assortment of props before I even had a watt meter and still no problem.

As a matter of fact most of my planes are slightly over propped with the exception of one that was severely over propped and producing double the recommended current capability for the motor, (Common Sense E5-L13 - rec18A ran 35A)and only after two months of continued flying did I pooch the motor. Keep in mind I could smell this motor while it was running (flying), thats how hot it was getting. Therefore I don't think our little SC's are anywhere near this extreme and chances are there is not much to worry about. If you want a rocket ship of a Cub install a Common Sense E5L13, it bolt up to a 450 out runner pattern and is super lite. Mine was producing 325watts in my Mini Pulse. It was ballistic ! I had a 35 amp Common Sence ESC.

If you use discretion and don't fly with the throttle pinned to the top and conserve battery power, you shouldn't run into problems

I would like to hear from anyone that has fried a SC set-up.....I'm curious ?

Glenn

[duck9191]

you can always trim the case and put a heatsink on the fet. not a cure all but it will help.

[patmatgal]

flyer88
I built a SC to mosey around the sky with, pretty much stock but I can use it on my DX6. Got the stock 480 brushed motor, using Li Po batteries (anything from 1300 to 1750), a Jeti Model 30 amp ESC, HXT900 servos and AR6000 receiver. The first day I flew it I started with an APC 10 X 4.7 prop, was less than happy with that prop so changed to the stock 10 X 8 after 1/2 a battery (knew it would eventually burn up the motor so would get a 10 X 6 next time at the LHS and replacement motors were only $11...) Well soon after I put the 6th battery in the motor quit (I'm thinking it burned up, ferocious smell when I took off the cowl) At least 85% of my flying was WOT but was suprised that the motor went bad so fast (servos & ESC still good, Id be interested in your opinion)
Thanks

[flyer88]

patmatgal

I'm surprised that you had a problem with your motor.

Yes agree that it is pushing the stock set-up , but I've seen several of these operating just fine. At one point guys were borrowing Lipos from me to try on their SC at the field and were excited about the increased performance. As expected these guys flew the thing with the throttle maxed and we never had an issue, that I experienced. Even after they went and purchased their own batteries, I never got negative responses ??

As a matter of fact Terry, a guy that works at our LHS, has been running the same Lipo set-up since he 's owned his Cub with no problems and offers the upgrade to many customers.

Since your looking for a new motor just go brush-less as it seems you have all the gear to make it work anyway. Checkout the Common Sense E5-L10 , perfect for a cub. I'm currently running the Hobby City 450 sized motor and it's slightly under powered. I replaced my Eflite 450 because I thought the bearings were shot, it worked better than the HC motor.

Good luck

Glenn

[patmatgal]

Thanks much. The motor in question was one sitting around (not sure of its history but without a doubt had been abused) and I just wanted to use it, I enjoy flying a SC with an E-flite 450 (scoots around without a hitch) That's good to know about a Common Sense ES-L10. Did you have to fabricate a motor mount, how did you attach it to the firewall?
Thanks again

[flyer88]

Very simple. Eflite stick type motor mount.



Glenn

[fpresley]

dont waste the money on a brushless motor. I've been flying a stock super cub since they came out and the only upgrade i have added is a 11.1 20cLipo. I also fly the parkzone focke wulf 190 and it has the same radio components, motor, servos, as the supercub. The only difference is that it came with the option to fly with both Ni-cad or Lipo packs and i've flown both in it. There is no need for a brushless motor, a new speed control or any new radio gear.

[patmatgal]

May not need them but the options are slim. Once you get fed up with the stock system either you upgrade or find another hobby.