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Old 11-29-2003 | 09:50 AM
  #1726  
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Default RE: U Can Do 3D

This one is about one year old. I havn't noticed any indication of sucking air. I'll keep an eye on it. $14.00 isn't light, but I would replace it if I have to. Joe
Old 11-29-2003 | 09:52 AM
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Default RE: U Can Do 3D

I & C Tech I don't mean to sound like a pain, but your engine seems to be pointing waaay to the side....
Old 11-29-2003 | 09:57 AM
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Default RE: U Can Do 3D

ORIGINAL: Rotcivv17

I & C Tech I don't mean to sound like a pain, but your engine seems to be pointing waaay to the side....

That's OK. 3 to 4 degrees of right thrust gives cleaner uplines. You could mount the cowl tilted to the right to center the spinner.
Old 11-29-2003 | 10:12 AM
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Default RE: U Can Do 3D

If you file the elongated mounting holes on the engine mount to make them slightly longer the mount will now sit further over to the side allowing the spinner to be more to center when angled. My mount came out as flush with the side of the fuse. Joe
Old 11-29-2003 | 10:21 AM
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Default RE: U Can Do 3D

You're right Joe, I did both. The cowl tilt in mine is very slight and unnoticeable
Old 11-29-2003 | 10:58 AM
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Default RE: U Can Do 3D

coomarlin, the black thing is a strip of velcro used to grab the plastic thingy the fuel lines are attached to. it was an initial idea of what I wanted to do but I may not stick with it. no pun intended


Rotcivv17, yes there is some angle there. This is my first plane and I'm sure I made other mistakes too. I was going for 4 degrees but ended up with more. Tried to take some out. Probably have 4 or 5 in it now. I tried to offset the mount and turn the cowl a little. It is not perfect but I'm not ashamed to fly it.
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Old 11-29-2003 | 11:40 AM
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Default RE: U Can Do 3D

shouldn't be ashamed to fly it that thing tears up the sky!!!!!!
he flys that thing just like a heli and it is his first airplane.
we built ours together.
thought it would be neat to tag team the field when we got good at flying ours.
but it is to cold and windy to fly once again[>:]
Old 11-29-2003 | 08:40 PM
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Default RE: U Can Do 3D

oh james you're so sweet. but......... you're not getting my bud light.
Old 11-30-2003 | 08:19 PM
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Default RE: U Can Do 3D

UGLY! Put it in hard today. I was putting along real easy and the horizontal stab flew off. I thought it had broken at first because I've read about that happening. I had no pitch control so I leveled the wing and shut the engine. It porpoised down and wouldn't you know I was lucky enough that it landed during one of the "porpoises" while straight down. Slammed the spinner into a rock. I took a crash site photo with a camera phone so it's not a great photo. The most sickening part of it? I think it was my fault. This is a new build so I've been checking fasteners for tightness. I've neglected this one and I didn't Locktite it because I wasn't sure if I could transport it without removing it. No more than 10 flights on it and I let this happen. Crap-Ola!!! Live and learn.
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Old 11-30-2003 | 08:30 PM
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Default RE: U Can Do 3D

I&C, sorry to hear about your loss. I epoxied my stab with two long CF strips on the top and bottom of the TE. The bolted-on option did not appeal to me as I found the assembly not rigid enough.
Old 11-30-2003 | 08:37 PM
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Default RE: U Can Do 3D

jeez guy and if i would have stay a few more minutes.
dont look that bad its fixable.
left you a link to a vid to cheer you up it is on rr
Old 12-01-2003 | 08:28 AM
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Default RE: U Can Do 3D

Bummer, Its amazeing how they all look the same when the expiration date is up. If it wasn't for parts being on virtual backorder they're cheaper than trainer parts. Good luck with the fix. I noticed something of interest on the fuse where the hor. stab mounts. This model (#3) has about 30 flights with nothing more than floating to the ground on a very smooth runway. Stress? #1 and #2 resulted in nothing less than severe impact but the tails were fine. Joe
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Old 12-01-2003 | 10:30 AM
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Default what the heck is going on???

Hey guys i cant seem to get my plane go straight flight.
it either wants to go down or up. no matter what throttle position.
i put about a half a pound of sockets in the front of the plane and it really didn't help that much.
my cg is appr 5".
what the heck am i doing wrong???
it also pourposes real easy it seemed to go away when i put the sockets in there but no matter what i do it wont go away.
the book i believe says 4 7/8" for cg so why would it make that big of a difference.
i know i read people flying at like 6"
*** i am getting sick over this crap.
someone please help me.[>:]
Old 12-01-2003 | 10:40 AM
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Default RE: what the heck is going on???

Hi James, I remember you mentioned that you measure your cg with fuel in the tank ? That would put the actual cg way behind 5" and may explain the instability you encountered.
Old 12-01-2003 | 11:58 AM
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Default RE: what the heck is going on???

Raj is right. My experience with it is, it dosn't start to get weird till its back about 5.5" to 5.75" But something is not right my last three were nose heavy and required my gear to be placed further back. Then again I built a fourth one for a friend and the only difference was I used a plastic spinner on his as opposed to aluminum and his needed 3 oz. up front. Go figure. Joe
Old 12-01-2003 | 04:39 PM
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Default RE: what the heck is going on???

Sounds like something is wrong with your setup. The plane shouldn't be pourposing (sp?) with a CG of 5.0. Heck, I've got mine at 6.25" and it still flys great. Even a CG of 5 is on the nose heavy side if you ask me. I had mine set to 5.5 and still thought it needed to go back. Thus the 6.25" I am at now.
Old 12-01-2003 | 07:23 PM
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Default RE: what the heck is going on???

it is weird i am going to take the tank out and put all the gear and stuff were it states in the instructions.
i think my take is way to far back and i am having real bad problems with the tank fuel being used.
Old 12-01-2003 | 09:08 PM
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Default RE: what the heck is going on???

jim tell them where your fuel tank is or put a picture up. it's barely back further than mine and my plane wasn't doing that crap. (until the stab came off)
Old 12-01-2003 | 10:26 PM
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Default RE: what the heck is going on???

Anyone have any idea about the availability of a fuselage and tail set? Will I be waiting forever if I place and order with Tower for that stuff?
Old 12-01-2003 | 10:27 PM
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Default RE: what the heck is going on???

[link=http://www.rcuniverse.com/forum/upfiles/66527/Gd93987.jpg]tank[/link]

the other picture can be seen on pg 55
Old 12-01-2003 | 10:29 PM
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Default RE: what the heck is going on???

i got a few of those at my house give me a call so we can talk about it
Old 12-01-2003 | 10:33 PM
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Default RE: what the heck is going on???

I & C Tech

I called Tower last week and I was told mid December for a fuse. They must be on a slow boat from china, all I know is I miss flying mine and I have a nib ys110 waiting for a home.
Old 12-01-2003 | 11:02 PM
  #1748  
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Default RE: what the heck is going on???

That's what I was afraid of. I'm gonna consider a whole kit then. I'll let it simmer on the brain for a day though.
Old 12-01-2003 | 11:23 PM
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Default RE: what the heck is going on???

That's what I was afraid of. I'm gonna consider a whole kit then. I'll let it simmer on the brain for a day though.
Thats what I'm doing. I had so much fun with it I want another, but I just haven't decided yet. My try a something else for the 110 just don't know yet.
Old 12-01-2003 | 11:41 PM
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Default RE: what the heck is going on???

We had a guy at our field that had a UCD that would porpoise and I noticed that whilew he was running up his motor the elevators twitched. It turned out that the extension between the elevator servo and the receiver had a bad connector. When the engine was throttled up and down the vibration would cause the plane to bob up and down erratically. He probably flew it a dozen times and was about to throw in the towel when we noticed it. Replaced the servo and the extension and the problem went away.


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