Developed from the Westland WS-51 Dragonfly HR.5 as a private venture. A 3-seat general utility helicopter, powered by an Alvis Leonides 521/1 9-cylinder radial engine, only a few were built before the project was cancelled, partly due to the UK Admiralty withdrawing from plans to convert 24 existing Dragonfly HR.5s. in the Fleet Air Arm. The Widgeon would have been the Dragonfly HR.7. At least 6 built as-new, following from 3 earlier conversions from the Dragonfly.