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Post by furn1593 on Dec 26, 2007 18:22:56 GMT 1
here is a simple use of some old servo parts, just need the right sizes  |
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Post by eastcoast78 on Dec 26, 2007 18:57:38 GMT 1
nice idea
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Post by buck8021 on Dec 27, 2007 21:51:50 GMT 1
I just put on a SULLIVAN 1" Tailwheel, #352.
It's a perfect fit right out of the pkg. Take the little original one off, and just put the new one on.
It's grooved solid rubber with an aluminum hub
$3.19 Canadian
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theriaa
Flight lieutenant
Posts: 89
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Post by theriaa on Jan 3, 2008 7:05:46 GMT 1
yay! new landings!  needed a little bending  |
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Post by pvtzemerak on Jan 29, 2008 0:44:00 GMT 1
does it make the plane heavier? what about the drag?
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Post by cjg on Jan 29, 2008 2:06:11 GMT 1
If you use foam lite wheels it doesn't add much weight. The drag doesn't seem to affect it much. I have 2 3/4" wheels on mine.
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rolie
Flying officer
Posts: 28
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Post by rolie on Jan 29, 2008 3:43:34 GMT 1
I've also added larger wheels. Is there a diagram or schematic that shows a way to build a simple procedure to check the CG of the SC? As I add (or subtract) things, I like to be cognoscente of what I am doing to this critical spec.
Thanks
Rolie
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Post by cjg on Jan 30, 2008 3:04:31 GMT 1
I made a simple balancing machine out of a couple dowel rods and a 1 foot square piece of 3/4" plywood. I beveled the top of the rod so it is smaller. Someone else suggested using rubber eraser tips. Make sure your battery is installed when you balance - the first time I forgot and threw it all off  Small bits of clay in the nose cowl help balance it if it is tail heavy. You can also see the "snow screen" on my air intakes, keeps it from getting snow packed inside the cowl and messing up the CG. Pictures:    |
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rolie
Flying officer
Posts: 28
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Post by rolie on Jan 30, 2008 4:15:17 GMT 1
That's a great help cjg. I'll do somthing very simular to what you've done. Thanks for the pictures. Do you know where the CG is supposed to be. Do you believe it to be about where you show it in your pictures?
Thanks again;
Rolie
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Post by sackohammers on Jan 30, 2008 22:01:06 GMT 1
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Post by cjg on Jan 31, 2008 0:45:33 GMT 1
Center of lift is about 1/4 of the way back from leading edge of wings. That is where I put my CG.
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rolie
Flying officer
Posts: 28
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Post by rolie on Jan 31, 2008 2:59:31 GMT 1
Thanks to all. The info at those links are very helpful.
Rolie
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rcbif
Flying officer
Posts: 13
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Post by rcbif on Feb 3, 2008 17:35:27 GMT 1
I just added dubro 2.75in wheels the other night. Instead of just using the 5-32 brass piece I bought the 5/32 and a 1/8inch piece of brass tubing. The 1/8inch just fits over the axle and it fits very tight on. Then the 5/32 piece goes over the 1/8inch piece on the axle and the wheel on over that. It makes for a very snug but freely moving wheel.
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Post by pvtzemerak on Feb 7, 2008 23:40:59 GMT 1
Heres a picture of them...  i saw those at my hobbyshop |
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mac
Squadron leader
Posts: 138
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Post by mac on Feb 8, 2008 7:31:07 GMT 1
Why does the wheel/hub on my Dubro 's look so different? Pic of cjg's Dubro lite foam 2 3/4" wheels.  Pic of my Dubro lite foam 2 1/2" wheels.  Just put them on and can't find the package they came in to verify they are dubro. Not that it matters much they work, it's just got me scratching my head now. Will have to make another trip to the LHS I bought them from to see what mine are. |
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