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The Transall C-160 is a military transport aircraft, produced as a joint venture between France and Germany. "Transall" is a German abbreviation of the manufacturing consortium Transporter Allianz, comprising the companies of MBB, Aerospatiale, and VFW-Fokker. It was initially developed to meet the requirements for a modern transport aircraft for the French and German Air Forces; export sales were also made to South Africa and to Turkey, as well as a small number to civilian operators. The C-160 remains in service more than 60 years after the type's first flight in 1963. It has provided logistical support to overseas operations and has served in specialist roles such as an aerial refueling tanker, electronic intelligence gathering, and as a communications platform. The C-160 is replaced in French and German service by the Airbus A400M Atlas, and a small number of Lockheed-Martin C-130J Super Hercules operated in a multinational unit. Development Origins In the late 1950s, a requirement arose to replace the piston-engined Nord Noratlas transports operated by the air forces of both France (Armée de l'Air) and Germany (Luftwaffe). Keen to encourage industrial co-operation between the two countries, as had happened under a previous arrangement in which Noratlases for German service had been built under license by Weser Flugzeugbau, France and Germany signed an agreement for the development of a Noratlas successor on 28 November 1957. The Italian government also became involved in the project early on to meet their own requirements, however Italy's participation in the fledgling program was soon terminated in favour of the smaller and locally-built Fiat G.222. The consortium, "Transporter-Allianz" or Transall, was formed in January 1959 between the French company Nord Aviation and the German companies Weser Flugzeugbau (which became Vereinigte Flugtechnische Werke (VFW) in 1964) and Hamburger Flugzeugbau (HFB) to design and build the new transport. The new aircraft was required to carry a 16,000 kilograms (35,000 lb) cargo over a range of 1,720 kilometres (930 nmi; 1,070 mi) or a load of 8,000 kg (18,000 lb) over a range of 4,540 km (2,450 nmi; 2,820 mi) and be able to operate out of semi-prepared airstrips. One prototype was built by each of the production partners, with the first (built by Nord) flying on 25 February 1963, with the VFW and HFB-built prototypes following on 25 May 1963 and 19 February 1964. These were followed by six pre-production examples, stretched by 51 centimetres (20 in) compared with the prototypes, which flew between 1965 and 1966. Production Production orders were delayed by attempts by Lockheed to sell its C-130 Hercules transport to Germany; these attempts were rebuffed, and a contract was signed for 160 C-160s (110 for Germany and 50 for France) on 24 September 1964. Manufacturing work was split between Germany and France in line with the number of orders placed; Nord built the wings and engine nacelles, VFW the centre fuselage and horizontal tail, and HFB the forward and rear fuselage. The aircraft's tail fin was to be built by Dornier. Three production lines were set up to assemble these components at each of the three main partners. The first production airframes were delivered to France and Germany from 1967. The first batch included 110 C-160Ds for the German Air Force (Luftwaffe), 50 C-160Fs for the French Air Force, and nine C-160Zs for the South African Air Force. Four C-160Fs were converted to C-160P air mail transport aircraft, and were operated by Air France. Production continued until October 1972. In July 1977, France placed an order for 25 aircraft to be built to an improved standard. Production work for the new variant was split 50-50 between Aérospatiale (the successor to Nord) and MBB (which had absorbed VFW and HFB), with a single assembly line in Toulouse. The cargo loading door on the port side of the fuselage was replaced by provision for additional fuel tanks in the wing centre section. When fitted these tanks increased fuel capacity from 19,000 litres (4,190 imp gal) to 28,000 litres (6,170 imp gal). The aircraft were also fitted with updated avionics. The first second generation C-160 took flight in 1981. Aircraft produced in this batch included 29 for France (an additional four non-standard aircraft were constructed for special missions), and 6 for Indonesia. Design Overview The Transall C-160 is a twin-engine tactical transport featuring a cargo hold, a rear-access ramp beneath an upswept tail, a high-mounted wing and turboprop engines. The C-160 is designed to perform cargo and troop transport duties, aerial delivery of supplies and equipment and is designed to be compatible with international railway loading gauges to simplify cargo logistics and loading. In flight the cargo area is pressurised and kept at a constant temperature by integrated air conditioning systems. Additionally, the landing gear can be partially retracted while on the ground. This lowers the C-160, making it easier to move vehicles into the hold as they don't need to climb a ramp. One aspect of the C-160 that made the type well suited to tactical operations is its short airfield performance, including the ability to perform steep descents of up to 20 degrees and perform landings on airstrips as short as 400 meters. In the airlift role, a later production C-160 could carry up to 8.5 tons across a distance of 5,000 kilometers, and take off from airstrips as short as 700 meters. Dependent upon aircraft configuration, a single aircraft could airdrop as many as 88 paratroopers or transport up to 93 equipped troops. The C-160 is powered by a pair of Rolls-Royce Tyne turboprop engines, which drive a pair of four-bladed Dowty Rotol propellers. Advantages of the twin-engine configuration over four include reduced unit and production cost, lower weight and fuel consumption, simplified design and reliability. Each engine is equipped with an auxiliary generator system, providing the aircraft with both electricity and hydraulic pressure. An auxiliary power unit (General Electric CJ610) is used to power the aircraft while on the ground, and for rare use in mid-air emergencies. Upgrades and improvements An updated second generation of the C-160 was produced during the 1980s. Amongst changes made, the new variant was equipped with additional fuel tankage, aerial refuelling probes and enhanced avionics. While there were considerable changes to instrumentation, including the navigational and autopilot systems, the second generation C-160 retained the original operating characteristics to simplify crew transfers between types. The second generation C-160s were also designed for potential adaptation to other roles such as maritime patrol and aerial fire fighting. The C-160 proved to be a versatile aircraft, leading to a long operational service life. Between its introduction and 1999, approximately 2000 modifications and upgrades were incorporated upon .... Discover the Olga Oliker popular books. Find the top 100 most popular Olga Oliker books.