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The Westland Dragonfly HR.3 was a Royal Navy search and rescue helicopter produced under license from the Sikorsky S-51 design. It featured all-metal rotor blades and entered service in the 1950s as the Royal Navy's primary rescue helicopter. A total of 71 HR.3 models were manufactured, with some la...
Why this score
Most numerous naval rescue variant, metal rotor blades improved maturity, solid service record, still limited by first-generation helicopter performance.
Scoring methodology
The Westland WS-51 Dragonfly was a British helicopter produced by Westland Aircraft under license from Sikorsky, based on the Sikorsky S-51 design. It first flew on October 5, 1948, and became the first British-built helicopter to be used by the Royal Navy and the Royal Air Force. The Dragonfly was...
Why this score
Important early British helicopter, useful rescue and communications service, but transitional technology soon surpassed by larger Whirlwind.
Scoring methodology
The Westland-Sikorsky WS-51 Mk.1A was a civil transport helicopter Dragonfly with a 520 hp Alvis Leonides engine; 36 were built.
Why this score
Civil Alvis-powered WS-51 with useful transport service and exports, respectable but limited by piston-era helicopter payload and range.
Scoring methodology
The Westland Dragonfly HC.4 was a casualty-evacuation variant of the Westland Dragonfly helicopter operated by the Royal Air Force. It was related to the HR.3 but incorporated all-metal rotor blades and was configured for transport and medical evacuation duties. Twelve examples were built, making it...
Why this score
RAF casualty evacuation version of improved Dragonfly, credible utility role, modest numbers, overshadowed by later Whirlwind helicopters.
Scoring methodology
The Westland Dragonfly HR.1 was a Royal Navy helicopter variant used for air-sea rescue. It belonged to the WS-51 Dragonfly family and was powered by an Alvis radial engine. Only 13 HR.1 aircraft were built, making the designation a specific limited-production subtype rather than a general name for...
Why this score
Early Royal Navy rescue variant with historical importance, modest production, limited capability compared with later metal-blade upgrades.
Scoring methodology
The Westland-Sikorsky WS-51 Mk.1B was a civil transport variant of the Westland WS-51 Dragonfly, the British licence-built version of the Sikorsky S-51 helicopter. This variant used a 450 horsepower Pratt & Whitney R-985 Wasp Junior radial piston engine, distinguishing it from Dragonfly versions pow...
Why this score
Civil Pratt and Whitney variant saw export use, but lower power and smaller production keep reputation below Mk.1A.
Scoring methodology
The Westland Dragonfly HC.2 was a military helicopter variant of the Westland WS-51 Dragonfly used by the Royal Air Force for casualty evacuation. It was closely related to the civil Dragonfly Mk.1A, but its stated role was the transport of wounded personnel. Three examples were built or converted f...
Why this score
Small RAF casualty evacuation variant, useful but very low production and little independent reputation beyond the broader WS-51 line.
Scoring methodology
The Westland Lynx is a British twin-engine military helicopter that first flew in 1971. It was developed for several roles, including troop transport, utility work, naval operations, anti-submarine warfare, and battlefield support, with different versions adapted to particular missions. A modified L...
Frequently Asked Questions
What leads the Westland ranking?
Westland Dragonfly HR.3 currently leads the Westland results with a displayed score of 7.32/10. This is an editorial ranking result for the items included on this page, not a universal verdict for every use case.
How should I read the score and confidence label?
The 0 to 10 score is Lunoo's ranking judgment. Strong confidence means 10 or more recorded comparison checks, some means 2 to 9, and provisional means fewer than 2.
What supports this ranking?
Lunoo combines category fit, feature coverage, pricing and value signals, public reception, recency, and peer comparisons. Public source links support factual item details when available, but they are not required for membership in this 8-item ranking.
Can I compare the leading results for Westland?
Yes. The comparison links put adjacent leaders side by side so you can inspect differences that one ranking score cannot capture.
