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Mayfly: A 1936 HARRISON BUTLER ‘PEPIN’ DESIGN, professionally restored, the only known surviving example of THB’s Loch Fyne Skiff sterned cruising yacht


….. SOLD …..

A 1936 HARRISON BUTLER ‘PEPIN DESIGN’ BERMUDIAN CUTTER built by Walton Yacht & Co Works, Shepperton, Middlesex, UK

  • Full Professional Restoration 2010 – 2016
  • Only surviving example of two Pepin Designs built in the UK
  • THB’s only Loch Fyne Skiff stern design


Boat Details

Overall Length: 22ft 2ins
Waterline: 19ft
Beam: 7ft 2ins
Draught: 3ft 9ins
Displacement: 4 Tons TM
Engine: 9hp Yanmar Diesel
Berths: 2
Sail: Bermudian Cutter Rig
Designer: Dr. T Harrison Butler
Builder: Walton Yacht Works
Year Built: 1936
Location: Devon


The yachts designed by Dr. T Harrison Butler are amongst the most coveted small cruising yachts in the UK and beyond. THB’s style and beauty of line combines with a well balanced and sea kindly vessel.

The Pepin Design dates from 1933 and was published in the Little Ship Club Journal in January 1934. The design, although pre-metacentric is well balanced on all points of sailing even in the squall conditions.

Built by the Walton Yacht & Launch Works, Shepperton on the River Thames in 1936 for R J Halden of London. The traditional construction is carvel planked larch, epoxy finished, copper fastened to steam bent oak timbers with an oak centreline.

Decks are 1.25 inch swept teak laid over a sub deck. Varnished teak cabin and cockpit coamings.

Traditional accommodation affording two 8ft upholstered settee berths to port and starboard. Starboard quarter galley with Taylors gimballed paraffin cooker and stainless steel sink unit.

Yanmar 9hp 1GM10 diesel engine, fitted new in 2009. Recorded hours 40. Servo-cone clutch KM2P-1 drive, engine serviced February 2014. Darglow Featherstream propeller.

Columbian pine, keel stepped mast. Bermudian cutter rig sets about 300 sq. ft. plain sail. Stainless steel standing rigging renewed in 2010. Running rigging new in 2007. Dacron sails, main, staysail and headsail. Roller reefing headsail.

Mayfly after nearly forty years in the ownership of Lt Cmdr Harlock R N based in Exmouth was in need of a complete re-fit. A thorough and carefully planned restoration programme commenced in 2010 and was completed in 2016.

The Harrison Butler Association, with currently about two hundred members world-wide is dedicated to yachts designed by Dr. Thomas Harrison Butler.  Full membership is available to owners or past owners of authentic boats and associate membership open to anyone with an interest in THB’s designs.  Members meet throughout the year at the various classic boat events. The Journal of The Harrison Butler Association is published on-line bi-annually together with a illustrated Year Book. The informative award winning Harrison Butler website offers information and history about all of THB’s work.


Traditional Compass
Navigation and Anchor lights
Danforth Bower Anchor
Fishermans Kedge Anchor
60ft galvanised chain
Cockpit Cover
Ensign Staff


Mayfly has been known to Classic Yacht Brokerage for over thirty years in the last three ownerships. Lt. Cmdr. Harlock R N owning her for nearly forty years.

In 2016 the finishing touches were put to a carefully planned restoration bringing Mayfly back to her original period condition.

This is a unique opportunity to acquire the only known surviving Pepin from the design board of the much aclaimed Doctor. Her sister ship, Ara built by Harry King, Pin Mill in 1936 was last known about in the Med in 1981.

Contact us more more information, photographs or an appointment to view.

LYING: Devon