To ask the Secretary of State for Defence whether Kapton wiring is used in the Yellow Gate system in place in Nimrod aircraft; when this system was fitted in Nimrods; what wiring is used on other Nimrod electrical systems; and if he will make a statement. (140911)

Kapton wiring is not used in the Yellow Gate system on the Nimrod aircraft but KTCL, a hybrid Kapton wiring, was introduced on the Nimrod MR2 as a part of the Yellow Gate modification programme during the period 1980 to 1985. The wiring used in the electrical systems of the Nimrod MR2 and Rl consists of: Nyvin, Minyvin, Efglas, KTCL, Febsil, ACT260, Raychem 44A and Raychem 55A.