page_title: Gadfly HDW.1
section_title: Design and construction
hierarchical_section_title: Gadfly HDW.1 / Design and construction
caption_attribution_description: English: Gadfly HDW.1 G-AVKE at the Historic Aircraft Museum at Southend Airport in 1976.
context_page_description: The Gadfly HDW.1 is a 1960s British two-seat cabin autogyro.
context_section_description: The autogyro was designed by E. Smith and built by the Gadfly Aircraft Company Limited. It is of welded steel tube construction with tricycle landing gear, powered by a 165 hp (123 kW) Rolls-Royce Continental IO-346-A inline piston engine driving a pusher propeller. It has a two-bladed rotor that can be engine-driven for starting.
  It was completed at Andover in 1967 and registered G-AVKE. After retirement the Gadfly was initially exhibited at the Historic Aircraft Museum at Southend Airport. Latterly it has been displayed at The Helicopter Museum, Weston-super-Mare.
caption: The sole Gadfly displayed at Southend Airport in 1976 complete with main rotor and pusher propeller
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