Definition 1 of 2
Definition
A fabric repair patch in which the edges are frayed (splayed out) before being bonded over a damaged area on a fabric-covered aircraft, allowing the loose fibers to feather into the surrounding fabric for a smooth, strong, and aerodynamically clean repair.
Plain English
A fabric patch with its edges deliberately unraveled so the loose threads blend into the original fabric instead of leaving a hard edge.
Context Anchor
Seen in aircraft wood-structure and plywood-skin repair instructions.
Derivation
‘Splay’ comes from Middle English, a shortened form of ‘display,’ meaning to spread out or open wide. In this repair, the patch edges are spread out into individual fibers rather than left as a clean cut — hence ‘splayed.’
Why Pilots Care
Maintains the aerodynamic smoothness and structural integrity of fabric-covered surfaces.
Intuition Check
Do not read splayed patch as a patch simply spread over the top of damage. Here, splayed means the patch and opening have matching sloped edges.
Example Sentence 1
The technician applied a splayed patch over the small tear in the wing fabric so the repair would blend into the surrounding surface.
Example Sentence 2
After the splayed patch cured, the surface remained smooth at cruise speed with no fabric flutter.