HS 748 HS 748 Srs2/244 Role Airliner Manufacturer First flight 24 June 1960 Status Active service Primary users Produced 1961-1988 Number built 380 Variants The Hawker Siddeley HS 748 is a medium-sized originally designed by the British firm in the late 1950s as a replacement for the aging then in widespread service as. Avro concentrated on performance, notably for operations, and found a dedicated market. 380 aircraft were built by Hawker Siddeley. A larger, stretched development of the HS 748, the, attempted to compete with the but saw a limited production run. Avro 748 Series 1 at, Buenos Aires, in 1972 The original 748 design was started in 1958, after the infamous ended most military manned-aircraft development in the UK, and Avro decided to re-enter the civilian market. The had the larger end of the short-haul market, and Avro therefore decided to design a smaller powered by two turboprop engines, intended to replace the many that were by then reaching the end of their economic lifespan.

Original plans were for a 20-30 seat aircraft with a similar configuration to the, but talks with potential customers soon led to a low-wing 40 seat design being chosen for the 748 project. Avro was not the only company to see the potential for a DC-3 replacement, and by this point work on the 748's direct competitor, the turboprop, was well advanced. Avro therefore decided to compete by producing a more rugged design with better short-field performance, allowing it to operate from smaller airports and those with rough surfaces. This was accomplished with a long, high lift wing and a unique single slot flap with a hinged flap tab at the trailing edge. The wing was mounted low on the fuselage with dihedral from the root, allowing good overall ground clearance and easy mounting of strong durable landing gear.

Other features of the 748 included an internal engine starting system, and systems and structures that were designed to be easy to inspect and repair in the field with limited equipment. 3ds 2009 Crack. The 748 was one of the first medium-sized aircraft to use fail-safe design principles in the structure, instead of the then common safe-life principles. Molecular Operating Environment Installation Artists. Because of these features, the 748 quickly became popular (and still is today) with a variety of airlines operating in remote areas thanks to its ability to haul payloads of over 10,000 lbs in and out of short rough fields with little to no ground service equipment.