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All Forums >> RC Airplanes >> Giant Scale Aircraft - General >> RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/12/2012 1:47 PM   
misterbill



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From: Cobourg, ON, CANADA
Status: offline 		Claud,

Cut all my wood to size on my Proxxon mini table saw. So I could make it exactly the size I needed. But 5/16" is around 9mm, and 1 1/4" is around 32mm if that helps.
I didn't use spruce for the dowels, couldn't find any, but I just used regular hardware store hardwood dowels. 18mm or so should do you if that size is available where you are.

Mike

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1/3 DH82A Tiger Moth (underway), 1/4 Jungmeister (2nd one, underway)

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/12/2012 6:35 PM   
Donairplane


 

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Status: offline 		Hi Bill, 

What was the finished weight of your cub?
 Beautiful job on your cub!!
Will finish mine after our move to Arizona.

Don

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/12/2012 6:38 PM   
misterbill



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Status: offline 		Hi Don - don't exactly remember - it was a while back when I weighed the bits for the cg, but it was in the early 30lb range.
Thanks for the kind words.

Mike

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1/3 DH82A Tiger Moth (underway), 1/4 Jungmeister (2nd one, underway)

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/13/2012 10:19 AM   
claudbosc



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From: Cividale del Friuli UDINE, ITALY
Status: offline 		Hello and thanks for the reply.

Since I am only plywood 8 or 10 mm thick.

To get them in wood joinery I should go in and have them cut to size but it would cost too much.

According to you, you can also use the plywood 8 mm?


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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/13/2012 12:26 PM   
misterbill



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Status: offline 		5/16 is actually 7.9mm so 8 mm should be perfect.

Google search for an inch to metric converter - it will help you. Here's one you could try

http://www.easysurf.cc/fracton.htm

Mike

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1/3 Sopwith Pup, 1/3 Nelitz J3 Cub
1/3 DH82A Tiger Moth (underway), 1/4 Jungmeister (2nd one, underway)

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/14/2012 9:03 AM   
claudbosc



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quote:

ORIGINAL: misterbill

5/16 is actually 7.9mm so 8 mm should be perfect.

Google search for an inch to metric converter - it will help you. Here's one you could try

http://www.easysurf.cc/fracton.htm

Mike



Ok I will use the one from 8 mm.

But the plywood is okay or should I use hardwood?


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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/14/2012 11:04 AM   
Tony Hallo


 

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Status: online 		I assume the wood is for the main spar, that being said, plywood is not the best choice.  Spruce or basswood would be the wood of choice.  When you cut a strip of plywood for use on a spar, only half of the fibers are in line with the bending stress, the fibers that are 90 degrees from the bending stress add little to the strength.  I would image popular wood is available in Italy?  I thought that is where our lite ply originated, Italian Bending Plywood?  I would use popular if basswood or spruce is not available.

< Message edited by Tony Hallo -- 11/15/2012 11:08 AM >

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/15/2012 10:44 AM   
dadragon


 

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Status: offline 		You can go to your local welding supply store get a card with the convertions on it.it has fractions to metric.

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/22/2012 7:13 PM   
claudbosc



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From: Cividale del Friuli UDINE, ITALY
Status: offline 		I ask for help.

Is there anyone of you who can get me the spars for the wings?

There are 4 pieces of spruce but here in Italy nobody has the time and desire to cut!

I'll pay the labor and shipping ...


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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/23/2012 6:48 AM   
gordon_mcln


 

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Status: offline 		Claude,

Call Aircraft Spruce or order online....They can supply any size spruce you need. Another option is Wicks Aircraft Supply in Canada.

Gordon

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 11/27/2012 3:38 AM   
dadragon


 

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Status: offline 		I used spruce on a few planes now I go to the local Lowes or HomeDepot and get a couple of 8 or 10' peices poplar,just as sturdy as spruce and alot cheaper as I do ALL myown cutting.

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 12/23/2012 2:16 AM   
crashman1432


 

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Status: offline 		Hey guys. Love this thread. I purchase a used Nelitz cub some time ago. (Thought that it was a BUSA Cub). Lovely plane but has seen much wear and abuse. I am trying to rework it some and bring it back to a better state. Can someone post some pictures or details about how the wing secures to the fuselage. Not the strut attachments but the root rib connections. Particularly how are the hardwood spars finished off to be able to connect to the tubular cage. Mine has like a metal cap strip molded around the end of the spar. It is really buggered up and leaves a lot of slop in the fit. The rear connection is a dowel with a brass tube over it that slips inside the metal tubing. A hole is drilled into it and a wire slips through it to secure inside the tubing. Any pictures or help would be greatly appreciated. If I can get her spiffed up a bit I plan to put her on floats and fly her often at our local lake. Thanks for your help.

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 1/28/2013 11:49 PM   
garypace


 

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Status: offline 		Hi I just received my cowling from fiberglass s. and started working on it and I noticed it was over a half inch wider on one side so I e mailed them and told them a bout the problem and sent some pictures , and this is what he said. [[ I can't tell what you are referring to. The cowl is what it is, if it's not
good enough for you, then you'll need to get it from someone else ]]

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 1/28/2013 11:57 PM   
Tony Hallo


 

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Status: online 		Post a photo of the cowl, I am having trouble understanding your problem.

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 1/29/2013 12:05 AM   
garypace


 

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Status: offline 		its over a half inch rounder one one side Itry to post picture for you

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/1/2013 8:34 PM   
bh307



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From: Laporte, TX, USA
Status: offline 		Rare find in local hobby shop 1/3 scale Bob nelitz cub in pretty good shape , Had to have it now in my garge was not cheap but its my, builder did good job , now much work to get it in the air.

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/1/2013 8:37 PM   
bh307



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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/1/2013 8:38 PM   
bh307



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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/1/2013 9:17 PM   
Donairplane


 

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Status: offline 		bh307,
Is Alex Guzman still cutting short kits for the cub?


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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/2/2013 1:57 AM   
bh307



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Status: offline 		yes I thank so

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/5/2013 12:29 AM   
garypace


 

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Status: offline 		Hi guys I just started working on my cub cowling and just finshed cuting the rivots and would like to do panel lines on it and could use your thoughts on how to do them.

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/5/2013 12:52 AM   
bh307



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Status: offline 		more pictures

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/14/2013 1:10 PM   
garypace


 

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Status: offline 		HI I'm starting to build a detail dummy engine for my nelitz j3 cub and was wondering if anyone would be interested ?

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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/14/2013 3:33 PM   
warbirdmustang


 

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Status: offline 		I'm sure everyone would be interested! Rock on!


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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build - 2/14/2013 7:00 PM   
misterbill



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From: Cobourg, ON, CANADA
Status: offline 		Here are some pix of how I did mine if that helps at all - ply laser cut fins etc., bolted onto ali shrouds around the Zenoah, exhausts etc cast by slosh casting resin, valve covers made from resin in urethane molds.
Plugs mix of ali tube & locknuts, wires are shrunk heatshrink. Eyebrows ali sheet.

Mike

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1/3 DH82A Tiger Moth (underway), 1/4 Jungmeister (2nd one, underway)

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