Friday, November 7, 2014

Upper Wings #3

The upper wing fittings are done...except for a few minor things like drilling holes for the wire terminal fittings and painting them.  Lots of cutting, grinding, filing, bending, welding, etc., etc.!!

Certainly better than the originals:  the originals were crudely cut out, and the new ones made from 4130 will have better strength properties than the low carbon steel previously used.

Detail pictures and descriptions of the fittings follow.

Weld detail




Most of the fittings have a doubler welded on the top to increase the thickness to .200" where the terminal fittings and struts attach.  These were all TIG welded which is my preferred method of welding. 







Cabane, landing wire - rear spar

Interplane strut and flying wire attach - rear spar

Cabane, landing wire - front spar

Interplane strut and flying wire attach - front spar

Aileron pulley brackets

Aileron hinge fittings

I'll get these finished up and painted in the next couple of days, it will then be time to start the actual wing assembly - Finally!

Tomorrow, we are heading up to Fond du Lac, WI for the annual Midwest Antique Airplane Club (MAAC) banquet.  Always a nice gathering and good time!  

Until next time...



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