Quadruplex Rotary Position Sensor

GEC Avionics Limited
Quadruplex Position Sensor
Part 10-036-01/Iss 4
Ser 8504114
NSN
Code K0656

EAP stands for "Experimental Aircraft Programme and was a technology demonstrator for what was to become the Eurofighter Typhoon. The sole aircraft (serial ZF534) first flew on 8 August 1986. The EAP aircraft was retired from service on 1 May 1991 and was then sent to the Aeronautical and Automotive Engineering department of Loughborough University but as of April 2012 it has been moved to the Royal Air Force Museum Cosford.
This Quadruplex Position Sensor is part of the Flight Control system. It is used to monitor and feedback the operation of the controlled flying surfaces. The Sensor is marked Penny & Giles Conductive Plastics Ltd. Type Q.P.S. D No. 21921.
Marconi Avionics, in common with other suppliers, made equipment for the EAP at their own cost in anticipation of orders for the Typhoon. Around 6 to 8 sets of equipment were made and all were put through the full evaluation/qualification tests.