I just got done installing a root fairing on a 750  . I had noticed  some weakness in the sheet metal along the curve on it and also on others 750s and 701s , I have also seen some root fairings with lots of dimples and waves  . A few have developed small cracks from the oil canning of this area.  Thought I would show what I had done on this 750 and can easily be done on other 750s or 701s

I just marked a line down the center of the fairing panel and started about 10mm from the spar . Layed out a 40mm spacing and pre drilled the holes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cut an L angle to length  and crimped the contour on top of  the skin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

marked a center line , predrilled the first hole and then the rest was easy. I did have to un cleco the back section of the root fairing to get access

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

really stiffens it up

I have done this in between ribs on a 701 but with the 750 haveing the horizontal stiffners runing down the length of the wing, I dont think its really needed on a 750

 

Tracy Buttles

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                          

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Comment by Tracy Buttles on January 19, 2013 at 7:07am

doesnt matter what version

Comment by Kenneth Buchmann on January 18, 2013 at 10:49pm

Mike:

do you do this on both Rev.2 and Rev.3 the same way?

Comment by Mark Maltais on January 18, 2013 at 9:09pm

Very nice job!! I like it!

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