Matronics Email Lists :: View topic - UltraStar tailwheel strut

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

UltraStar tailwheel strut

Matronics Email Lists Forum Index -> Kolb-List

View previous topic :: View next topic

Author Message

Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Mon Aug 09, 2010 5:47 pm Post subject: UltraStar tailwheel strut

At 08:37 AM 7/13/2010, John Hauck wrote:

  	  Quote: 	
		  Dana:

  

 Normalized 4130 steel tubing makes a very poor spring, unless heat treated, of course.

  

 The tail wheel strut should be a spring.

  

 I use .120" wall 4130 heat treated to 48 RC for my tail wheel strut on the mkIII.  An US could use something with a thinner wall, like .090". 	


 In the end I used a new tube of .058 4130, since the next size smaller tube I'm splicing it with fits inside nicely.  The inner tube is [I think] .035 wall.  No heat treat; I figure it's more than twice as strong as the original.  Flew it today for the first time since fixing it, and it seems to be holding up fine, though I'm on pavement now instead of the grass field I was using.



 -Dana

 --

  A computer lets you make more mistakes faster than any invention in

 human history... with the possible exception of handguns and tequila.    [quote][b]

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Kolb-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum