Author Topic: wing spar  (Read 1183 times)

Offline airman

wing spar
« on: November 11, 2016, 06:32:53 AM »
What size are the vertical pieces between the main top and bottom wing spars? Cant find dimensions on plans

Offline scottiniowa

Re: wing spar
« Reply #1 on: November 11, 2016, 02:23:43 PM »
What size are the vertical pieces between the main top and bottom wing spars? Cant find dimensions on plans

I may be corrected, but in general, These vertical pieces on all wood wings are generally the same thickness as your spar caps and bottoms  Thus when your spar is built, it would lay flat either way.  (i.e. on the spar web or spar caps and vertical's
best email address:  irondesignairparts@gmail.com

Offline Bob S.

Re: wing spar
« Reply #2 on: November 11, 2016, 09:54:05 PM »
On the Legal Eagle Some are 1/4" x 3/4" and some are 3/4" square. The 3/4" square are at the joints on the shearweb.
Bob Severance
LE Plans #64H
E038RS

Offline scottiniowa

Re: wing spar
« Reply #3 on: November 12, 2016, 05:50:25 AM »
On the Legal Eagle Some are 1/4" x 3/4" and some are 3/4" square. The 3/4" square are at the joints on the shearweb.

ahh yes, the width dimensions as stated by Bob S. are important too. :emoji_u1f601:
best email address:  irondesignairparts@gmail.com

Offline Tom XL-7

Re: wing spar
« Reply #4 on: November 12, 2016, 07:52:21 AM »
My XL-7 drawings show 3/4" by 1/2" all-butt joints
Page 33 top of page
 the other vertical pieced were 3/4' x 1/4"
Tom XL-7

Offline John Reinking

Re: wing spar
« Reply #5 on: November 12, 2016, 12:49:10 PM »
Don't do what I did.  On the DE spars I used 3/4 x 3/8 sticks for the ribs to be secured do.  AFTERWARDS when putting in the lower diagonals discovered to my chagrin that the GUSSETS for those diagonals had to be reshaped to accomodate the larger size.   Boy, the guys on here who say READ AND STUDY the plans, well, let's say I learned the hard way.
Retired US Postal Service 6 years, Sport Pilot (Aeronca 1946), first time builder and enjoying every bit of it (well, there are those gussets).   married (49 years), have had the flying bug forever.       reinkings@comcast.net

Offline Dave Stroud

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Re: wing spar
« Reply #6 on: November 12, 2016, 02:29:55 PM »
So what you are saying John is that those sticks that the front of the ribs get attached to on the spar should have been the same thickness as your rib strip material ( 3/4" x 1/4" ) so that you wouldn't have to notch the diagonal gussets around around your 3/4" x 3/8" strips ? Thanks.

Nice looking wing, John My plans have still not arrived but I'm on my fifth rib and got all my nose ribs routed out today.
Dave Stroud
Ottawa, Canada