Hawker Siddeley HS 121 Trident. Characteristics. A photo.
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Hawker Siddeley HS 121 Trident. Characteristics. A photo.

Hawker Siddeley HS 121 Trident. Characteristics. A photo.

Hawker Siddeley HS 121 Trident \ DH 121 - British jet passenger plane trёhdvigatelny intended for operation on the lines of small and medium-haul.

Photo Hawker Siddeley HS 121 Trident

The development of the Hawker Siddeley HS 121 Trident passenger aircraft began in the late 50-x and the early 60-ies of the last century, while the Canadian aircraft manufacturer De Havilland Aircraft Company was the main aircraft designer, however, the aircraft was released by the Hawker Siddeley British aircraft-building company. The Hawker Siddeley HS 121 Trident made its first flight in the 1962 year, and after a series of improvements to the design, starting from the 1964 year, it began to be mass-produced.

Depending on the cabin, in the aircraft Hawker Siddeley HS 121 Trident could accommodate 101 to 180 passengers at the same time the aircraft was very reliable, but not cost-effective in terms of its operation, which ultimately was the main reason for the rapid discontinuation, which ended after the withdrawal of the conveyor unit 117.

Hawker Siddeley HS 121 Trident photo

The power plant of the Hawker Siddeley HS 121 Trident aircraft is represented by three, and in one of the modifications, four Rolls Royce Spey RB163 turbofan engines that allow the development of a common thrust in 138 kN and more, depending on the model version. Used aircraft engines were fairly reliable, but fuel consumption was truly enormous, which in turn required to ensure the nominal load of the aircraft in no less than 85% for the payback of the flights made.

During the production of aircraft Hawker Siddeley HS 121 Trident, it was built four additional modifications that improve and perfect, but in the end remained unclaimed in the rapidly developing market.

cockpit Hawker Siddeley HS 121 Trident

Hawker Siddeley HS 121 Trident 1 - basic production model, designed for passenger transportation 101, 2170 at distances up to kilometers, flying at speeds of the order of 937 km \ h (cruise speed of flight). At its core, the model is a prototype and its operation is not proizvodilpas.

Model Hawker Siddeley HS 121 Trident 1C received a number of improvements in some, in particular, they touched upon the increase in the maximum take-off weight of the aircraft, increased flight distance is about 3259 kilometers and increased fuel capacity.

Version Hawker Siddeley HS 121 Trident 1E received not only the interior with increased seating capacity, but also a number of changes affecting the design of the aircraft. In particular, the aeronautical engineer increased the wingspan to 29 meters, strengthened fuselage structure and to equip the aircraft with new aircraft engines, allowing to develop the cumulative thrust 153 kN. On board the aircraft could accommodate up to 108 passengers and a maximum flight distance increased to 3,5 thousand kilometers.

Salon Hawker Siddeley HS 121 Trident

Model Hawker Siddeley HS 121 Trident 2E is a modification version 1E. Due to the changed cabin on board the aircraft could accommodate up to 115 passengers and aircraft engines and new tanks increased volume allowed the aircraft to overcome the distance to 4300 kilometers.

Hawker Siddeley HS 121 Trident 3B, with the exception of increased passenger capacity, which began to be 180 people, also received changes in the design of the fuselage, in particular, its length was 39 meters 98 centimeters, and wingspan increased to 30 meters. In addition to the three turbofan aircraft engines, the aircraft designers also made a special booster capable of developing additional thrust in the 23,4 kN. However, the performance characteristics of the Hawker Siddeley HS 121 Trident 3B aircraft did not change for the better — the cruising flight speed dropped to 917 km / h, and the flight range did not exceed 3600 km.

The final version of the Hawker Siddeley HS 121 Super Trident 3B saying only increased following distance, however, as demand for the model did not use, was built only 2 aircraft.

Specifications Hawker Siddeley HS 121 Trident.

  • Crew: 3 person;
  • Passenger: 115 people (depending on version);
  • aircraft Length: 35 m (depending on version).
  • Wingspan: 29 m (depending on version).
  • Plane Height: 8,3 m .;
  • Weight of empty aircraft: 33475 kg. (Depending on version);
  • Payload: 31161 kg. (Depending on version);
  • Maximum takeoff weight: 64636 kg. (Depending on version);
  • Cruising speed: 937 km / h. (Depending on the modification);
  • Maximum flight speed: 950 km \ h. (Depending on version);
  • Maximum flight distance: 4345 km. (Depending on version);
  • Maximum flight height: 11000 m .;
  • aircraft engine type: turbofan;
  • Powerplant: 3 × Rolls-Royce RB.163-25 Spey 512 (depending on version);
  • Link: 3 × 53,1 kN. (Depending on version).

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