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Aviation History
1978
1978 - 2954.PDF
FLIGHT International, 18 November 1978 1881 : II An RAF Hawk on a weapon-training sortie over the South Wales coast powered and alternative engines under study include the uprated Adour "Dash 56" or the unreheated RB.199, although the latter would call for some redesign of the intakes and engine bay. A single-seat variant has been under consideration for some time, but manpower short ages within British Aerospace have held up development. Meanwhile, market research into the saleability of a single-seat Hawk continues. The ailerons and tailplane are powered, while the rudder remains manually operated. Structural limits for a clean aircraft with full internal fuel are +8/—4g. The limits remain the same with 3,0001b of external stores and 60 per cent fuel. Fatigue life is 6,000 flying hours, allowing for low-level operation. Hawks are already replacing the RAF's Gnats and Hunters in the advanced training role at Valley, Angle sey, and for weapons training at Brawdy, South Wales. Once the aircraft is fully in service a student will graduate to the Hawk after 160hr on Jet Provosts. After up to 130hr on Hawk the student will move on to the operational conversion unit. In Finnish Air Force service the trainee will graduate to the Hawk from the Vinka piston-engined primary trainer. Ferry range on full (365gal) internal fuel is 1,300 n.m. Maximum weapons load is 5,6001b on one fuselage and four wing hardpoints. The fuselage station is usually occupied by a 30mm Aden cannon pod. Nearly 40 different weapons configurations have been tested, including air-to- air missiles. With a 5,6001b weapon load the maximum radius of action is 300 n.m., increasing to 560 n.m. with a 3,0001b load. British Aerospace Strikemaster Although BAe has delivered all 145 Strikemasters on order, ten more aircraft are being built at the company's own risk. British Aero space is confident that these aircraft can be sold and says that a number of customers are already interested. The Strikemaster is operated by nine countries, four of which have re-ordered on a number of occasions. Developed from the Jet Provost, the Strikemaster can carry up to 3,0001b of external stores on four underwing pylons. Two 7-62mm machine guns are mounted beneath the intakes. The aircraft is used mainly in the light attack role and has a hi-lo-hi mission radius of action of 215 n.m. with full weapons load. Maximum range on a typical training mission is 630 n.m. Casa C.101 Aviojet Designed with the assistance of Northrop and MBB, the C.101 has been developed to an extremely tight schedule. Development was started in September 1975 and the first of six prototypes flew on July 27, 1977. Two of the prototypes were retained for structural testing, and the last of the four flight-test air craft flew on April 17 this year. On March 3 the Spanish Air Force ordered 60 C.lOls to replace Hispano HA.200 Saetas. Casa sees a market for over 300 Aviojets and is actively selling the aircraft. The C.101 has already been demonstrated in Jordan, which, as a C.212 Aviocar operator, seems likely to become the first export customer. Unit cost of the trainer is $1 • 2-1 • 9 million. To enable Casa to meet the deadlines specified by the air force, Northrop collaborated with the company on the design of the air intakes and wing section. MBB designed the rear fuselage and has built examples for the test programme. Casa will build all of the production aircraft, the first of which is due to be delivered to the air force in October 1979. The maximum production rate will be four aircraft a month, and the 60th will be delivered early in 1981. Casa believes that the Spanish Air Force will double its order eventually and that at least a few of the aircraft, will be used for ground attack. Casa has limited the performance of the aircraft to keep procure ment and life-cycle costs down. The straight, 15 per cent- thick wing houses 273gal of the 520gal internal fuel capa city, but limits the maximum Mach number to 0-8. The performance penalties of this choice of wing are to some extent offset by two unusual features of the C.101. First, the internal fuel capacity is such that the aircraft need never carry external tanks, freeing all the store stations for weapons. Second, guns can be mounted in an internal weapons bay below the rear seat, avoiding the draggy pod installations of other designs. Access to the single Garrett TFE731 is extremely good, as one of the air force requirements was for an engine to be changeable within one hour. Casa has demonstrated The Casa C.101 is powered by Carrett's economical TFE73I turbofan
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