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Avro 748

From Academic Kids

(Redirected from BAe/Hawker Siddeley 748)

The Avro 748 was a small short-range turboprop airliner designed by Avro in the late 1950s as a replacement for the now-aged DC-3's then in widespread service as feederliners. Avro concentrated on performance, notably for STOL operations, and found a dedicated market and was eventually produced to 380 examples, second only to the Vickers Viscount. A larger development, the BAe ATP, attempted to compete with the deHavilland DASH-8 but saw a limited production run.

The original 748 design started in 1958 after the infamous Duncan Sandys 1957 "Defence White Paper" ended most military manned aircraft development in England, and Avro decided to re-enter the civilian market. The Viscount had the large end of the short-haul market neatly wrapped up, so Avro decided to design to a smaller feederliner design to replace the many DC-3's that were now reaching the end of their lifespan. Avro was not the only company to see the potential for a DC-3 replacement, and by this point the Fokker F27 Friendship was well advanced. Avro decided to compete by producing a design with better short-field performance, allowing it to operate from smaller airports.

The first aircraft flew from Avro's Woodford plant on June 24th, 1960, and two prototypes quickly proved the type's short field performance. Eighteen 748 Series 1 aircraft were produced, the first for British Skyways Coach-Air (later known as Dan-Air) but the majority for Aerolíneas Argentinas. By this point Avro had been merged into the Hawker-Siddeley Group and the design was known as the HS-748.

The Series 2 entered production in 1961 with a higher take-off weight, and were produced to 198 examples, making it one of the most popular post-war British designs. The more powerful Series 2A followed for another 71, along with another 25 Series 2Cs.

The RAF ordered a version modified with a T-tail and rear loading door as the Andover C1, which was also license produced in India by Hindustan Aeronautics.

Hawker Siddeley became part of British Aerospace in the mid-1970s with the Series 2B becoming the main production model.

Several large fleets remain active around the world, significantly in India, Canada and the United Kingdom.

Specification

  • Length: 20.42 m
  • Height 7.57 m
  • Wingspan: 30.02 m
  • Standard Layout: 48 seats
  • Maximum take-off weight: 23,133 kg
  • Engines: Two Rolls-Royce Dart RDa.7 Mk 536-2 turboprops with a maximum rating 1,700 kW
  • Normal operating speed: 243 knots
  • Maximum operating altitude: 7,620 m
  • Full-laden range: 1456 km

See also:List of civil aircraft


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