Avionics upgrade for the Jet Provost fleet: A modification programme to install new radio and navigation equipment in the RAF's fleet of Jet Provost T Mk.3 and T Mk.5 aircraft to meet the latest air traffic control requirements was carried out by BAC Warton. Designated as the T Mk.3A, eighty-six Mk.3 aircraft were upgraded under Contract KA5(c)/466/CBA.5(c), introducing a greater measure of commonality between both aircraft. Specification 284D &P, issued on 7 December 1972, which comprised a revised instrument layout, included the replacement of the Eureka DME receiver, the single UHF radio and G4 compass with a VOR instrument landing system, civil DME, VHF radio, Sperry CL 6 Compass and a stand-by Ferranti Altitude Indicator . Ninety-three T Mk.5s were also upgraded to T Mk.5A
I would be interested to learn of anyone who was a member of the elusive third course - No.125 (Jet Provost) Course March - November 1957 - at No. 2 FTS, Hullavington, flying the Jet Provost T Mk.1? It did actually exist because it is mentioned in a contemporary Air Ministry document