[briand]

I received 6 rights and only 2 left interior ribs for my flaps. Can I just have the 2 extra right ribs face the opposite way from whats shown on the dwg for the left flap or is the rib web placement critical?

 

[vmirv8bldr]

I'm no expert

I'll need to check when I get home, but I believe they are mirror images. So long as you keep the two end ribs the correct orientation on each one and can reach the shop heads for bucking, it shouldn't be a problem.

Seems like the plans call for an L in the right flap and an R in the left somewhere anyway. This is why I believe they are mirros images of each other and it really shouldn't matter for the internal ribs.

When in doubt, call Van's.