Author Topic: High wing planes lead out guides (Read 807 times)

Walter Hicks · « **on:** July 26, 2013, 11:29:17 PM »

Mr Mulligan ,Electric, Converting for Scale C/L . Question is how strong does the Lead Out guide have to be? See pictures. Do I need to brace it with
the wing struts? I Am going to add a piece at the bottom of leadout guide wire attachments <a href="http://s82.photobucket.com/user/kickercoach12/media/IMG_0340.jpg.html" target="_blank"><img src="http://i82.photobucket.com/albums/j262/kickercoach12/IMG_0340.jpg" border="0" alt=" photo IMG_0340.jpg"/>[/url]<a href="http://s82.photobucket.com/user/kickercoach12/media/IMG_0339.jpg.html" target="_blank"><img src="http://i82.photobucket.com/albums/j262/kickercoach12/IMG_0339.jpg" border="0" alt=" photo IMG_0339.jpg"/>[/url]

Paul Smith · « **Reply #1 on:** July 27, 2013, 07:39:57 AM »

I can't give you numerical answer, but I will say.

It might carry a lot more stress than you think.
If it fails the whole deal is over.
Don't underbuild it.

I've built several biplanes, pretty much the same deal, except you have to wings to brace against.

I recommend starting low with a lot of line rake. After a test flight you can bring it into trim. That beats starting high and forward and not having anything to trim.

Jim Fruit · « **Reply #2 on:** July 27, 2013, 08:10:56 AM »

Walter:

You will never get a consensus here.

My most recent high wing Rearwin Speedster:
64", 6 pounds.
Leadout guides .032 wire - almost no flying load on them (screwed to bottom of the wing).
Line rake: (center of the lines) 2 degrees to the rear, behind the center of gravity.
Line elevation at the leadout: Same as the thrust line.

Flew right off the board, no adjustment was necessary.

Jim Fruit

Clancy Arnold · « **Reply #3 on:** July 27, 2013, 09:27:29 AM »

Walter
Check your email inbox.
Clancy

Trostle · « **Reply #4 on:** July 27, 2013, 12:58:00 PM »

Quote from: Jim Fruit on July 27, 2013, 08:10:56 AM

Flew right off the board, no adjustment was necessary.

Jim Fruit

Hi Jim,

You have a real rarity. I have been told that, like entropy where there is a fixed amount of energy in the universe, there are a fixed number of CL model airplanes that fly right off the board and those were all used up by the mid '50's.

Keith

Paul Smith · « **Reply #5 on:** July 27, 2013, 01:09:23 PM »

Right. Mine "flew" too. But they flew better with some adjustment.

Jim Fruit · « **Reply #6 on:** July 28, 2013, 07:48:29 AM »

Quote from: Trostle on July 27, 2013, 12:58:00 PM

Hi Jim,

You have a real rarity. I have been told that, like entropy where there is a fixed amount of energy in the universe, there are a fixed number of CL model airplanes that fly right off the board and those were all used up by the mid '50's.

Keith

Keith

You made me smile first thing this morning. I needed that. I missed my scheduled trip to the NATS because my Crohn's made me too sick at that time.

I am convinced that the success of the flying of the Rearwin Speedster was because of the help that you gave me at the time of designing the leadout guide.

Jim Fruit

Author Topic: High wing planes lead out guides (Read 807 times)

Walter Hicks

High wing planes lead out guides

Paul Smith

Re: High wing planes lead out guides

Jim Fruit

Re: High wing planes lead out guides

Clancy Arnold

Re: High wing planes lead out guides

Trostle

Re: High wing planes lead out guides

Paul Smith

Re: High wing planes lead out guides

Jim Fruit

Re: High wing planes lead out guides