Eagler's Nest

Airframes => Single Seaters => LE => Topic started by: nheistand on March 18, 2015, 04:41:48 PM

Title: Jury Struts
Post by: nheistand on March 18, 2015, 04:41:48 PM

In the photo gallery I see some of the ultralight Legal Eagles have jury struts and some do not. What is the criteria for adding the jury struts, is it optional, or recommended for larger engines? For the Far103 legal version can I leave them out of the build?

Thank you.
Norm Heistand  supercharged V-twin being tested..

Title: Re: Jury Struts
Post by: Bob S. on March 18, 2015, 05:43:18 PM

I left the jury struts off because I used the Carlson streamlined struts... MUCH stiffer than round tubing...

Title: Re: Jury Struts
Post by: JimG on March 18, 2015, 06:49:13 PM

Hi Bob, can you tell us which Carlson struts you used, was it 2 large or large frt and small aft.
 
They also have an extra large but i think that would be for much heavier crafts

Thanks

JimG

Title: Re: Jury Struts
Post by: Bob S. on March 18, 2015, 08:39:16 PM

I purchased the small tubing as it states (thru a typo) that it is "Stronger than but compared to 12.75 Dia x .065 wall 6061T6 tubing"... NOT 12.75 Dia.....1.275 Dia.!   WHICH is what I believe Leonard specs for the struts on the Legal Eagle....

I had Carlson cut two 126" sticks exactly in half (for shipping costs) then got a stick of 3/4"x 3/4" solid bar for attachments top and bottom... I put the Streamlined tube up close at the top with minimum sq. bar at top and had a piece of exposed bar at the attachment at the bottom. I fashioned a sleeve from thin aluminum to go over the bar at the bottom and it looks OK.... I have since found out that I could used 3/4" sq STEEL tube for the attachments T&B just as easily and saved a few OZ. in weight and $$ in costs... Take a look at it... DON'T use 3/4" Aluminum tube for the attachment...Use 4130 steel or the solid 6061-T6 bar!!!

Title: Re: Jury Struts
Post by: JimG on March 18, 2015, 09:07:31 PM

Thanks for explaining that Bob, makes good sense.
Do you have any photo's of the attach points i could have a look at in this forum.

cheers

JimG

Title: Re: Jury Struts
Post by: Sam Buchanan on March 19, 2015, 02:16:59 PM

Quote from: JimG on March 18, 2015, 09:07:31 PM

Thanks for explaining that Bob, makes good sense.
Do you have any photo's of the attach points i could have a look at in this forum.

cheers

JimG

This page has photos of the struts, jury struts, and attachments:

http://eaglexl-58.com/assembly-2.htm (http://home.hiwaay.net/~sbuc/legaleagleXL/assembly-2.htm)

Title: Re: Jury Struts
Post by: Bob S. on March 19, 2015, 11:12:46 PM

I'll get some shots of my make-do....this weekend...

You can see some in my folder in the Yahoo Group...
https://groups.yahoo.com/neo/groups/EaglersNests/search/photos?query=sapropbuster#zax/albums_518603076

they are not very detailed or specific, but if you know what to look for, it may give you an idea...

Bob