Aircraft dope is a plasticised lacquer that is applied to fabric-covered aircraft. It tightens and stiffens fabric stretched over airframes, which renders them airtight and weatherproof, increasing their durability and lifespan. The technique has been commonly applied to both full-size and flying models of aircraft.
2699 a World War I Royal Aircraft Factory B.E.2 finished in a clear (non-coloured) dope
Aircraft fabric covering is a term used for both the material used and the process of covering aircraft open structures. It is also used for reinforcing closed plywood structures. The de Havilland Mosquito is an example of this technique, as are the pioneering all-wood monocoque fuselages of certain World War I German aircraft like the LFG Roland C.II in its wrapped Wickelrumpf plywood strip and fabric covering.
Fabric covering of a de Havilland Tiger Moth showing rib stitching and inspection rings.
A Lillienthal flying machine replica
An Ultraflight Lazair covered using Ceconite and the Hipec process.
Laced panels and stitched undercambered airfoil of a Sopwith Pup