Bob Nelitz 1/3 Scale J-3 Short Kit build
01-26-2010, 06:01 PM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Thanks Don
I am not sure and it also matter how scale you make it. But it should come in between 30-40 pounds
I am not sure and it also matter how scale you make it. But it should come in between 30-40 pounds
01-26-2010, 09:51 PM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Here is one of my aileron hings ,Here is what I use. the aileron hing was made out of 1/4 alum. end plate for 1/4 plywood got at Lowes $9.00 for a 4' peice No bending just cut and shape. For the hing rod 1/4 brass sq. tube and 7/32 keystock.
01-27-2010, 06:07 AM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Tony
What size cable did you use for you aileron pull pull ? 4-40 or 0.32 ? I am going to be using pulleys like your cub has.
Thanks
Billy
What size cable did you use for you aileron pull pull ? 4-40 or 0.32 ? I am going to be using pulleys like your cub has.
Thanks
Billy
01-29-2010, 11:14 AM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Warning....,
Do not use K&S streamline ali tubing for wingstruts on a 1/3 scale Cub - they are just not strong enough!! You need quite a bit more wall thickness to make it a proposition.
They migh just make it under tension, but any negative G's will surely make them somewhat unhappy......
However, you can safely use them if you run something through them and use that to fasten at each end - like a 4.40 rod - just run it through and plug the ends of the ali tube with whatever will allow you to finish it to the right shape and keep the rod centered in the tube. Then you get to use standard RC fittings as well.
Alternatives could be from Sea Commander (makers of fantastic scale floats & Canadian too!) - and are suppliers of heavier wall streamline tubing - http://www.seacommander.com/newproduct1.asp
Or stainless steel streamline tube from Toni-Clark in Germany - http://www.toni-clark.com/index_en.htm
My 2c.
Cheers, Mike
Do not use K&S streamline ali tubing for wingstruts on a 1/3 scale Cub - they are just not strong enough!! You need quite a bit more wall thickness to make it a proposition.
They migh just make it under tension, but any negative G's will surely make them somewhat unhappy......
However, you can safely use them if you run something through them and use that to fasten at each end - like a 4.40 rod - just run it through and plug the ends of the ali tube with whatever will allow you to finish it to the right shape and keep the rod centered in the tube. Then you get to use standard RC fittings as well.
Alternatives could be from Sea Commander (makers of fantastic scale floats & Canadian too!) - and are suppliers of heavier wall streamline tubing - http://www.seacommander.com/newproduct1.asp
Or stainless steel streamline tube from Toni-Clark in Germany - http://www.toni-clark.com/index_en.htm
My 2c.
Cheers, Mike
01-29-2010, 12:23 PM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
I am not using the alum. struts . I am using Balsa USA shaped wing struts.
https://www.balsausa.com/store/categ...id_category=31.
1/2 x7/8 on front
3/8 x 5/8 on back
And misterbill is right if you use k&B run a 4.40 rod threw it. I would also put a little epoxy and mircoballoon in each end.
https://www.balsausa.com/store/categ...id_category=31.
1/2 x7/8 on front
3/8 x 5/8 on back
And misterbill is right if you use k&B run a 4.40 rod threw it. I would also put a little epoxy and mircoballoon in each end.
01-29-2010, 01:47 PM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Hello There:
You may not be aware, I have the original Mylars for Bob's Cub. I also have a number of the Cub Decals.
Bob's model weighed 32 lbs. I helped out on the test flights, back in 1980. Bob rebuilt the original into a L-4,
this was completed just before Bob passed away. I have this in storage.
Larry
You may not be aware, I have the original Mylars for Bob's Cub. I also have a number of the Cub Decals.
Bob's model weighed 32 lbs. I helped out on the test flights, back in 1980. Bob rebuilt the original into a L-4,
this was completed just before Bob passed away. I have this in storage.
Larry
01-29-2010, 02:58 PM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Larry
Any pictures of the org. Bob Cub or any info on it would be great. I am having be best time trying to build this great Cub.I just wish I had more time to put into it.This will be a plane I will keep for a long time.
Thanks
Billy
Any pictures of the org. Bob Cub or any info on it would be great. I am having be best time trying to build this great Cub.I just wish I had more time to put into it.This will be a plane I will keep for a long time.
Thanks
Billy
01-30-2010, 07:57 AM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Hi guys - a cowl made from Bob's original, complete with seam lines, cutouts marked, is available for $49.99 from The Hobby Barn in Arizona. - http://hobbybarn.com/products.php?cat=112
He mentioned it in his build article.
I have one, and it's epoxy glass, and really excellent.
Remember too, that a Balsa USA Cub is quite a bit wider (more than an inch if I remember correctly) than a Nelitz Cub, so a windscreen might need modification....
Cheers, Mike
He mentioned it in his build article.
I have one, and it's epoxy glass, and really excellent.
Remember too, that a Balsa USA Cub is quite a bit wider (more than an inch if I remember correctly) than a Nelitz Cub, so a windscreen might need modification....
Cheers, Mike
01-30-2010, 09:23 AM
#67
RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
I used 1/32" Stainless Steel, it is C&D leadout wires from Sullivan. The size of cable provided for the rudder just doesn't like to bend around the pulley without excessive tension.
01-30-2010, 09:26 AM
#68
RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Wonder why they list the plans as out of stock? It been this way for sometime. I ended up buying a set from someone on ebay or the like.
01-30-2010, 10:06 AM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Thanks Tony
Misterbill is right on the cowl but they where out of stock last time I check but now I see they have them again So I will be buying one myself from hobbybarn. And yes I know the BUSA cub is wider but the windscreen will work. I have two sets of plans one from hobbybarn(old set) and one from ebay they are the same.
Thanks Misterbill and Tony for the info.
Billy
Misterbill is right on the cowl but they where out of stock last time I check but now I see they have them again So I will be buying one myself from hobbybarn. And yes I know the BUSA cub is wider but the windscreen will work. I have two sets of plans one from hobbybarn(old set) and one from ebay they are the same.
Thanks Misterbill and Tony for the info.
Billy
02-04-2010, 05:02 PM
#72
RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
These are 1/3 scale Cub wheels, the one on the left is pneumatic with scale lettering, the one on the right is the current foam jobbie. The one on the left is discontinued. If memory serves me correct they are 5 1/4" in diameter.
02-10-2010, 08:19 PM
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RE: Bob Nelitz 1/3 Scale J-3 Short Kit build
Hi Guys. I just found this site omg. So much to read i might not get my plane finished this winter. I will be watching this site with great intrest as my plans for my Nelitz cub should be here soon. Will not start building until turbo beaver is finished.