When is a glued joint considered satisfactory?

A glued joint is considered satisfactory when joint strength equals wood strength because this ensures that the bond created by the adhesive is as strong, or stronger, than the wood itself. Achieving joint strength that matches or exceeds the wood's inherent strength is crucial for the integrity and durability of the joint in applications such as aviation. It indicates that the joint can withstand the loads and stresses that it will encounter during use without failing.

Uniform glue coverage, fast setting times, and visual aesthetics can contribute to the quality of a glue joint but are not definitive indicators of its overall performance. A joint that looks good or sets quickly may still not possess the necessary strength for safe and reliable operation in aviation contexts. Therefore, focusing on the strength of the joint in relation to the wood is paramount for ensuring safety and structural integrity.