Kenya ordered 90 of this variant. Hawk 51 – Export version for the Finnish Air Force. 50 ordered December 1977, with first four to be built by British Aerospace and remaining aircraft assembled in Finland. Delivered December 1980 to September 1985. Hawk 51A – Seven Hawks were sold to Finland as part of a follow-on order. Powered by Adour 851 engine as used by Hawk 51, but with structural and wing modifications of later Hawks. Hawk 52 – Export version for the Kenyan Air Force. Fitted with braking parachute. Twelve ordered 9 February 1978, with deliveries from 1980 to 1981. Hawk 53 – Export version for the Indonesian Air Force. Eight ordered 4 April 1978, with five more ordered in May 1981, a further three in October 1981 and four in November 1982, giving a total of 20 delivered between 1980 and 1984. Five repurchased by BAE Systems in 1999. Hawk 60 Another export version, replacing the Hawk 50, intended for conversion and weapons training. Weapons carriage is increased. It is a two-seater, has uprated Rolls-Royce Adour 861 engines, and is capable of a level speed at altitude of 555 knots (1028 km/h) or Mach 0.84. The T-45 Goshawk was derived from this version. Hawk 60 – Export version for the Air Force of Zimbabwe. Fitted with braking parachute and provision for carrying a reconnaissance pod. Eight Hawks were ordered by Zimbabwe on 9 January 1981, and delivered between July and October 1982. Hawk 60A – Five Hawks were sold to Zimbabwe as part of a follow-on order in 1990. The aircraft were delivered between June and September 1992. Hawk 61 – Export version for Dubai, United Arab Emirates Air Force. Eight ordered 30 June 1981 for a price of $40 million and delivered March to September 1983. Single additional attrition replacement aircraft delivered 1988. Hawk 62 – Export version for Venezuela, order cancelled Hawk 63 – Export version for Abu Dhabi, United Arab Emirates Air Force. 16 purchased on 2 January 1983 for $180 million including spares and maintenance support. Delivery between October 1984 and May 1985. Hawk 63A – 15 Hawk 63s were upgraded to this standard from October 1991, with the Adour 871 engine and Advanced Combat Wing of the Hawk 100, with four underwing weapons pylons and wingtip missile rails, but retaining simpler avionics of Hawk 63. Hawk 63C – Four new build aircraft to Hawk