Question: Do VMAR ARFs make use of triangle stock to expand the bonding area of right angle joints?

Answer: Yes. We use triangle stock whereever a right angle joint is under stress and needs an expanded bonding area. In some cases the stock is square and in other cases it is triangle shaped but the intent and the result is the same.

Primary areas where you will see this are on the formers fore and aft of the radio bay, behind the firewall and under the wing mounting blocks.

In some cases the triangle or square stock may not be visible upon casual inspection... look carefully on both sides of the formers. In response to user inquiries we have tended to put the extra stock where it is more visible since 2003.