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The National Firefly Class aims to provide high standard one design racing at reasonable cost.

The Firefly was designed in 1946 by Uffa Fox and was adopted as a national class in 1947. In 1987 the rules were revised in order to safeguard the one design characteristic in the light of modern dinghy developments. The several hundred detailed drawings, which were once part of the rules, have been excluded.

  • Included within these rules is a diagram for the reduced rig. Although this rig may not be used in class racing, the diagram is included as information for the purpose of junior racing at club level.
  • National Firefly hulls, hull appendages, rigs and sails are measurement controlled.
  • Firefly hulls shall only be manufactured by a licensed builder.
  • Equipment is required to comply with the RYA National Firefly Building Specification and is subject to an RYA approved manufacturing control system.
  • Firefly rigs shall only be manufactured by Selden. Firefly sails shall only be manufactured by Hyde Sails.
  • Firefly hulls, hull appendages, rigs and sails may, after having left the manufacturer, only be altered to the extent permitted in Section C of the class rules.
  • Owners and crews should be aware that compliance with rules in Section C is NOT checked as part of the certification process.
  • Rules regulating the use of equipment during a race are contained in Section C of these class rules, in ERS Part I and in the Racing Rules of Sailing.

This introduction only provides an informal background and the National Firefly Class Rules proper are contained within the full Class Rules document.


Click here to download the Current Class Rules (2024)

The Chairman
National Firefly Association