Dear Guys
I have an issues with the angle bracket required to connect rib w-331 to the spar caps ( see attached photo, I hope). The distanced called from the top of the spar cap to the rivet holes is 3/8 or 6/16th. The rivets required an edge distance of 4/16, the thickness of the angle is 1/16 which totals 5/16, leaving 1/16 between the angle and the bottom of the cut section.
How ever this does not allow for the internal 1/8” radius of the 3/4x3/4 angle.
If you try to use the dimensions given, the rib does not sit correctly on the flat area of the angle.
Could I increase the 3/8” by another 1/8” to 1/2” ? This would leave 1/4” edge distance from the rivets to the top of the angle and allow more material to be removed from the rib?
Or, build as drawn and allow the rib to conform to the internal radius and put a radius in the corner of the cut out to decrease the stress from the bending the would occur in the corner?
Opinions?
I have an issues with the angle bracket required to connect rib w-331 to the spar caps ( see attached photo, I hope). The distanced called from the top of the spar cap to the rivet holes is 3/8 or 6/16th. The rivets required an edge distance of 4/16, the thickness of the angle is 1/16 which totals 5/16, leaving 1/16 between the angle and the bottom of the cut section.
How ever this does not allow for the internal 1/8” radius of the 3/4x3/4 angle.
If you try to use the dimensions given, the rib does not sit correctly on the flat area of the angle.
Could I increase the 3/8” by another 1/8” to 1/2” ? This would leave 1/4” edge distance from the rivets to the top of the angle and allow more material to be removed from the rib?
Or, build as drawn and allow the rib to conform to the internal radius and put a radius in the corner of the cut out to decrease the stress from the bending the would occur in the corner?
Opinions?
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