Comment

Comment by James Austin on November 15, 2013 at 10:53pm

Just found this post because I'm at this bridge. .125 weights .201 per foot. .093 75% thinner, roughly 25 feet of angle in fuselage total weight for .125 = 5.025 lbs difference 1.25 lbs. Not much to worry about for my planes missions even under LSA. James

Comment by Paul Bonasera on February 27, 2011 at 6:44pm

Seems to be what we all use. The good news is that .125 is what Zenith calls for on the wing spar.

Comment by Garlen Mikolichek on February 24, 2011 at 1:06pm

 I used the .125 angle like you. I couldn't find the .o93 like the plans called for either. It worked out fine.

Comment by Doug MacDonald on February 24, 2011 at 11:43am

The 093 aluminum angle that Zenith specifies in the drawings is a custom extrusion made only for them.  The standard practice for us scratch builders has been to use 125 aluminum angle in its place.  Yes, it is slightly heavier and yes, it has a slightly different profile.  Just make sure you are getting the called for grade when you buy it, 6061-T6 or 2023-T3 as is specified in your plans.  Do Not substitue -0 aluminum.

 

Doug MacDonald

CH-701 Scratch

C-GBQX

NW Ontario, Canada

Comment by Jesse Hartman on February 24, 2011 at 10:19am

Thanks for all the replys.  I have discount steel in Minneapolis that has all the supplys in stock.

Comment by Joseph Begany on February 24, 2011 at 8:23am

This is a great question because I also found that the .093 angle is not available.  At leaast I can't find it at that section any where.  I was planning on asking this question myself.  Obviously it will add some weight to use the .125 angle but there isn't really that much difference in weight.  After all, a 12 foot length of .125 angle is very light.  It's good to hear that others have made the switch.

Comment by Ben Knox on February 24, 2011 at 7:02am

Hi Jess     thre .125 angle  is fine    stronger- much easier ot find-haevier but not a factor.  If i can help,you my e-mail is ben-knox@hotmail.com

Comment by Pedro Rivera on February 24, 2011 at 2:36am

Hello Jesse

 Many people to save money substitute the extrusions, the bad part is that you are adding weight.

 

Pedro

Comment by Steven Ward on February 23, 2011 at 10:59pm

 Hi Jesse, welcome to the wonderful world of plans building!  From what I understand, .125 is the accepted replacement for the .093 angle. I just bought the .125 angle to start on my forward fuselage in a few weeks. I have found that Zenith is outstanding at answering tech questions.

 If I can help you any, please ask!