When repairing damaged aluminum skin with a single-lap sheet splice, what is the minimum overlap using a double row of 1/8-inch rivets?

In the context of repairing damaged aluminum skin with a single-lap sheet splice, the minimum overlap requirement is crucial for ensuring the structural integrity and load distribution of the repair. When using a double row of 1/8-inch rivets, the overlap distance must be sufficient to accommodate the rivet spacing and provide adequate strength to resist shear forces.

The recommendation is that for a double row of 1/8-inch rivets, the minimum overlap is specified to be at least 13/16 inch. This distance takes into account the placement and spacing of the rivets, ensuring that each set of rivets can adequately share and distribute the load along the splice. This overlap provides the necessary material continuity and helps prevent the possibility of failure at the joint under load conditions.

Selecting an overlap shorter than 13/16 inch could compromise the effectiveness of the splice, as the rivets would not be sufficiently anchored within the materials to handle expected stresses, possibly leading to early failure. This overlap requirement upholds the safety and reliability standards essential in aviation and aeronautical repairs.