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Post by 05prostock on Nov 21, 2007 5:49:02 GMT 1
I redid my motor mount so I could get the original thrust. Here are some pics...    I know what you're thinking...it's a little beat up ;D |
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Post by duck9191 on Nov 21, 2007 7:44:52 GMT 1
lol don't worry my cub isn't pretty any more either, and i have to redo my motor mount thanks to some really long grass. looks pretty good though, did you add anything to the mount or just bolt it too it?
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hack73
Squadron leader
Posts: 154
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Post by hack73 on Nov 21, 2007 15:03:22 GMT 1
Wow, I thought my cub was abused, not anymore...hahaha. Looks don't always count. How does it fly?
I just upgraded to brushless myself but using the E-Flite 450 motor. I am going to post my pictures soon.
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Post by 05prostock on Nov 21, 2007 17:57:38 GMT 1
It flies great. I can take off in a few feet and climb straight up for a ways.
It's just the stock motor mount. I grinded it down and then used my own AMERICAN MADE bolts. Im sick of all that chinese junk. It's getting to where that's all you can buy these days.
Well today I took her out for a fly and there was trouble.
The motor just stopped in mid air. I still had all other electronic control so it's narrowed down to the motor and speed controller.
When I try to use the motor it just goes back and fourth a little ways like a bad connection or no connection at all on one of the wires, but I resoldered everything and i'm still having the problem.
So then I replaced the esc and when I turned it one it just smoked from the motor AND the esc.
I'm stumped... Help!
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hack73
Squadron leader
Posts: 154
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Post by hack73 on Nov 21, 2007 19:20:24 GMT 1
Post your issue in the Trouble Shooting section. I think you will get your answer much faster. Can you give us more info on the ESC & Motor you're using? Or how everything is connected because your third picture shows the motor and ESC sharing a connection.
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jt01
Squadron leader
Posts: 166
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Post by jt01 on Nov 21, 2007 20:30:27 GMT 1
I'm also trying to figure how you have this wired.It looks like you have two red wires at the deans connector which should never be.
Jim
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Post by 05prostock on Nov 21, 2007 20:53:08 GMT 1
Nope. The only reason it's like that is because there are 2 wires (black/red) that use to connect to another motor. It just looks as though there are two going into the dean.
So now I've used two speed controllers, and resoldered every connection a few times.
Im thinking about ditching the whole thing and buying a cheap motor/esc/prop setup from unitedhobbies.
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Post by mrmugen on Nov 22, 2007 0:54:02 GMT 1
I think you over heated that motor. It does not look close to spec needed to pull the cub effeciently. What is the watt raing on that motor? Also what KV is it? Kevin
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Post by flydiver on Nov 22, 2007 4:17:33 GMT 1
Agree with Kevin. Just by eyeball that motor looks too small and the prop too large for THAT motor on the Cub. Might be fine for a smaller plane.
Can you tell us the specs for both?
fly
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Post by 05prostock on Nov 22, 2007 5:33:40 GMT 1
nope I can't. I pulled everything out of another plane and never got the specs.
I think ill just get a new motor setup.
Thanks for the help anyways. ;D
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Post by mrmugen on Nov 22, 2007 5:38:24 GMT 1
You need to make sure that the motor you buy is enough for this plane. Not just any ole motor is gonna work. Sure it may pull it up for a flight or 2 and seem fine in flight. What you don't see is the motor gaining in temp and making your esc overwork as well as you batteries. Just a tip, Kevin
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Post by 05prostock on Nov 22, 2007 5:50:50 GMT 1
Thanks.
I'm getting the same one as hack73 did from united hobbies
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Post by a74charger on Dec 30, 2007 5:32:26 GMT 1
I'm using a outrunner similar to the Scorpion or Himax series, 30a esc, and 2200 mAh lipos on my SC. She'll go vertical out of site, and motor and esc never get warn. I get about 20+ flight time (never really timed it). Used original GB (used dremel to cut it flat), then used a piece of 1/4 in lite ply cut to gb outline to make a firewall. Haven't got pictures to post. here are the spec on motor.
Rpm(Kv): 1050Rpm/V
Max Currect: 30A
Max Eff: 98%
Current Capacity: 32 / 60s
No Load Current: 0.8 A
Dimensions: Diameter 28.2mm x Length 39mm
Shaft Diameter: 2.97mm
Recommended Planes Weight:
550 - 1400g / 19 - 50oz
Recommended Input Voltage:
2 - 4 cells, 7.4 - 14.8v (Li-polymer)
6 - 12, 7.2 - 14.4v (NiCD)
Recommended Propeller:
8 x 4 to 13 x 6
Max Current: 30A
Max Eff: 98%
Max Watt: 280w / 11.1v
Weight: only 84g
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