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.
A photoHawker Siddeley HS 121 Trident
Development of passenger aircraft Hawker Siddeley HS 121 Trident began in late 50-- early 60-ies of the last century, with the main designer of the aircraft performed a Canadian aircraft manufacturer De Havilland Aircraft Company, but the aircraft itself was released on the British aircraft manufacturer Hawker Siddeley. His first flight of the aircraft Hawker Siddeley HS 121 Trident committed in 1962 year, and after a series produced improvements in design, since 1964 years, he became a 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 aircraft Hawker Siddeley HS 121 Trident is represented by three, and in one of the modifications by four turbofan engines Rolls Royce Spey RB163, allowing to develop a common thrust 138 kN or more, depending on the version of the model. Used aircraft engines were quite reliable, but fuel consumption was really huge, which in turn required to provide the nominal load of the aircraft in at least 85% for payback flies.
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.
cockpitHawker 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.
SalonHawker 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, except for the increased passenger capacity, which was the amount 180 people got changes in the fuselage structure, in particular, began to make its length 39 98 centimeters meters and a wingspan increased to 30 meters. In addition to the three turbofan aircraft engines, aircraft designers have done more, and a special booster capable of developing additional thrust in 23,4 kN. However, the flight performance of the aircraft Hawker Siddeley HS 121 Trident 3B is not changed for the better - cruising airspeed decreased to 917 km \ h and range of flight does not exceed the 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 version);
- 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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