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Upper extruded Ls

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naumuk(at)alltel.net
Guest

Posted: Sun Mar 11, 2007 12:27 pm Post subject: Upper extruded Ls

All-

     Well, here we are. 3 months late  (Some might say 3 years late), but the fuse is hooked up to the c-section. Just  finished the garanger and still have to be careful of positioning or I'll run  out of room!

     Anyone have an easy way to bend  the upper longerons? I'm not crazy about building the rig Larry  Mac used, but will if I have to.

 Bill Naumuk

HDS Fuse/Corvair

Townville,  Pa

Fuse.c-section.jpg

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wjones(at)brazoriainet.co
Guest

Posted: Sun Mar 11, 2007 12:49 pm Post subject: Upper extruded Ls

Hi Bill ,there may be a better way ,however I used  the method used by Larry Mac .It takes next to nothing to build the jig if you  already have some big "C" clamps

 Wade Jones    South Texas 

601XL plans building

Cont.  0200

 [quote]   ---

Ron Lendon

Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI

Posted: Sun Mar 11, 2007 3:20 pm Post subject: Re: Upper extruded Ls

That's the way I plan on doing mine. The whole object is to have some control over the process.

_________________
Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
https://sites.google.com/site/corvairenginedata/

rickpitcher

Joined: 27 Feb 2007
Posts: 76

Posted: Sun Mar 11, 2007 3:52 pm Post subject: Upper extruded Ls

---

larry(at)macsmachine.com
Guest

Posted: Sun Mar 11, 2007 5:27 pm Post subject: Upper extruded Ls

Bill,

Take another look at what it takes.  Very little effort to get it right 

here and you just use the template to check against.

Bend just a little at a time, and you can unbend as needed to get it.  

Just take your time.

http://www.macsmachine.com/images/fuselage/full/longeronbend.gif



Larry McFarland at www.macsmachine.com

do not archive

Bill Naumuk wrote:

 	  Quote: 	
		   All-

     Well, here we are. 3 months late (Some might say 3 years late), 

 but the fuse is hooked up to the c-section. Just finished the garanger 

 and still have to be careful of positioning or I'll run out of room!

     Anyone have an easy way to bend the upper longerons? I'm not crazy 

 about building the rig Larry Mac used, but will if I have to.

 Bill Naumuk

 HDS Fuse/Corvair

 Townville, Pa



 ------------------------------------------------------------------------

naumuk(at)alltel.net
Guest

Posted: Sun Mar 11, 2007 5:42 pm Post subject: Upper extruded Ls

Wade-

     I guess it's the casters that  threw me.

                                   do not archive

 Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

 [quote]   ---

naumuk(at)alltel.net
Guest

Posted: Sun Mar 11, 2007 5:45 pm Post subject: Upper extruded Ls

Rick-

    Definitely the way to go, but I can't justify the expense for two bends.

                                    do not archive

Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

---

naumuk(at)alltel.net
Guest

Posted: Sun Mar 11, 2007 5:50 pm Post subject: Upper extruded Ls

Larry-

    I'll probably come up with something similar depending on what I find 

laying around the corners of the garage.

Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

---

ter_turn(at)yahoo.com
Guest

Posted: Sun Mar 11, 2007 6:33 pm Post subject: Upper extruded Ls

Check out Scott Laughlin's site. He simplified Larry's bender a little. Couldn't get easier.

   

  Do not archive 

Bill Naumuk <naumuk(at)alltel.net> wrote:

  [quote]--> Zenith-List message posted by: "Bill Naumuk" 



Larry-

I'll probably come up with something similar depending on what I find 

laying around the corners of the garage.

Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

---

david_a_g_johnson(at)btin
Guest

Posted: Mon Mar 12, 2007 3:21 am Post subject: Upper extruded Ls

I used this technique, but using a vice (vise?) for better control.



One problem is that the longeron tries to bend sideways as you bend it. My 

solution was to clamp both longerons back to back to form a T section and 

bend them both together, they tend to stay flat if you do that, as they are 

each trying to bend in oppposite directions, so cancel out. It also has the 

advantage that you get both longerons to exactly the same curve - and if you 

are REALLY lucky, it might even be the CORRECT curve!!



Dave Johnson



601XL from a kit (in the UK)

Wings, tail and most of the fuselage done, waiting for the instruments 

(Dynon D100 & D120) and engine Jab.3300)



---

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