Hawker Siddeley HS.121 Trident Jet Airliner Family
The Hawker Siddeley Trident was a British short- and medium-range jet airliner distinguished by three rear-mounted engines and a T-tail. Originating as de Havilland's DH.121, the prototype first flew in 1962. Successive 1, 2E, and stretched 3 variants pioneered highly automated all-weather landing capability and served principally with British European Airways, British Airways, and Chinese operators.
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Identity
- Aliases
- HS.121 TridentHS121 Tridentde Havilland DH.121Trident 1CTrident 2ETrident 3B
- Family Name
- Hawker Siddeley Trident
- Full Name
- Hawker Siddeley HS.121 Trident Jet Airliner Family
- Roles
- airliner
- Status
- retired
- Type
- aircraft
Details
- Aircraft Specs
- Configuration
- fixed_wing
- Operating Modes
- land
- Takeoff Landing Capabilities
- conventional
- Description
- The Hawker Siddeley Trident was a British short- and medium-range jet airliner distinguished by three rear-mounted engines and a T-tail. Originating as de Havilland's DH.121, the prototype first flew in 1962. Successive 1, 2E, and stretched 3 variants pioneered highly automated all-weather landing capability and served principally with British European Airways, British Airways, and Chinese operators.
- First Flight Year
- 1,962
- Manufacturer
- Propulsion Configurations
- Entries
- Count
- 3
- Placement
- fuselage
- Propulsion System
- Role
- main
- Stage
- airframe
- Variant Notes
- Three exact Rolls-Royce Spey 505 turbofans, rated at 9,850 pounds-force each in this installation.
- Name
- Trident 1C
- Notes
- Applies to the Trident 1C configuration only; other early Trident variants remain unrepresented unless their exact Spey rating is sourced.
- Entries
- Count
- 3
- Placement
- fuselage
- Propulsion System
- Role
- main
- Stage
- airframe
- Variant Notes
- Three exact Rolls-Royce Spey 512 turbofans, rated at 11,930 pounds-force each in this installation.
- Name
- Trident 2E
- Entries
- Count
- 3
- Placement
- fuselage
- Propulsion System
- Role
- main
- Stage
- airframe
- Variant Notes
- Three exact Rolls-Royce Spey 512 turbofans, rated at 11,960 pounds-force each in this installation.
- Count
- 1
- Placement
- fuselage
- Propulsion System
- Role
- booster
- Stage
- airframe
- Variant Notes
- One exact Rolls-Royce RB162-86 booster turbojet, rated at 5,250 pounds-force and used for takeoff augmentation.
- Name
- Trident 3B
- Notes
- Preserves the mixed three-engine-plus-booster installation instead of treating the RB162-86 as a fourth cruise engine.
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- Creation Time
- July 29, 2026 at 22:29:34 UTC
- Updated Time
- July 30, 2026 at 02:57:23 UTC