jeffw@sc47
Well Known Member
A gotcha discrepancy between 18-04 Fuel Tank Skin, the top inboard wing skin, and 41-04 Wing Fairing.
The 41-04 instructions call for dimpling all of the holes in the top wing fairing (including the #17 holes for the #8 countersunk screws). But - 6 of the top inboard wing skin attach holes are not dimpled and do not have dimpled platenuts installed (as the wing instructions indicate); plus, three of the #8 screw attach points in the T-1005B/C Shims (ref T-00006-L/R Tank Attach Brackets) not for dimpled screws.
After reviewing this with Kevin at Van's - he agreed with me to carefully machine counter sink those 9 non-dimpled attach screw points in the wing skin to allow the wing fairing skin's dimpled points to fit down into those attach points. This is instead of the other option of flattening out those dimpled #17 holes and having to truss head screws.
I did a search through VAF forums without finding that anyone else found this. Van's so far had not heard of this plans discrepancy. The most current plans instructions still reflect this disconnect - so that should to be corrected.
The 41-04 instructions call for dimpling all of the holes in the top wing fairing (including the #17 holes for the #8 countersunk screws). But - 6 of the top inboard wing skin attach holes are not dimpled and do not have dimpled platenuts installed (as the wing instructions indicate); plus, three of the #8 screw attach points in the T-1005B/C Shims (ref T-00006-L/R Tank Attach Brackets) not for dimpled screws.
After reviewing this with Kevin at Van's - he agreed with me to carefully machine counter sink those 9 non-dimpled attach screw points in the wing skin to allow the wing fairing skin's dimpled points to fit down into those attach points. This is instead of the other option of flattening out those dimpled #17 holes and having to truss head screws.
I did a search through VAF forums without finding that anyone else found this. Van's so far had not heard of this plans discrepancy. The most current plans instructions still reflect this disconnect - so that should to be corrected.