Serge (fabric) with worsted warp and a woollen weft. Denim is a cotton fabric with a similar weave; its name is believed to be derived from "serge de Nîmes" after Nîmes in France. Serge (fabric) Serge is a type of twill fabric that has diagonal lines or ridges on both sides, made with a two-up, two-down weave. The worsted variety is used in making military uniforms, suits, great coats and trench coats. Its counterpart, silk serge, is used for linings. French serge is a softer, finer variety. The word is also used for a high quality woolen woven fabric. The name is
Gourdou-Leseurre Type A Only a single prototype was built, but this led to the development of the successful Gourdou-Leseurre Type B. Gourdou-Leseurre Type A The Gourdou-Leseurre Type A, retrospectively named the GL.1, was a prototype fighter aircraft built in France in 1918. It was a conventional parasol-wing monoplane with fixed tailskid undercarriage, with main units connected by a cross-axle. The pilot sat in an open cockpit. Construction was of fabric-covered wood and steel. Initial flight testing revealed performance superior to most contemporary biplane fighters and led to an order of 100 aircraft being placed. However, further tests suggested that the aircraft structure could