Design No. 6703
Bolt 18 Mk2
Design 6703 represents a development of the Bolt 18 concept, designated as the Mk2 variant. Classified as a single screw design, this proposal exists within the Mylne archive as a set of 17 drawings. A yacht bearing the original Bolt 18 name was built in 2012, though the relationship between that vessel and this Mark 2 iteration requires further clarification from archival records.
Original Drawings · 16 sheets
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The Mylne Bolt 18 is a fast, agile all electric boat and yacht tender powered by a 135bhp electric motor, and a bank of lithium batteries. The Bolt 18 represents a step change in the power and versatility of electric boats in the UK and Europe. Top speed is in excess of 30 knots. Monaco 2012 - Launch Date for the Bolt 18 Tender - from the drawing board of Mylne Yacht Design , designer of legendary yachts such as Thendara, Tigris, Atlantide etc., since 1896 November 2012 - Mylne set the British Water Speed Record at 32.77mph for the National "Unrestricted Electric Runabout" class. David Gray, the designer says "The boat is exceeding all our expectations in terms of speed, acceleration, autonomy, quietness and ride quality. We received an exceptional amount of attention at the Monaco Yacht Show, and later during Les Voiles de St Tropez. The simple lines, open plan, pollution free all electric propulsion, low maintenance and astonishing performance were very well received." Specification Length 5.5m / 18ft Beam 1.8m / 6ft Draft 0.5m / 1ft 8in Weight 750kg / 1650lbs Crew 6 RCD Cat C Motor 100kw / 135bhp Electric Fuel 24kwh Lithium Cell Pack Top Speed 30+knots Acceleration Phenomenal Cruising 20 knots for 30+ minutes
Yachts in the Register · 1
Historical Context
Alfred Mylne's design practice extended well into the twenty-first century, encompassing both traditional sailing yachts and motor vessels. The Bolt 18 series exemplifies contemporary design work undertaken in the later phases of Mylne's career. Single screw motor yachts of this era reflected evolving priorities in yacht ownership, with emphasis on efficiency and seakeeping characteristics suited to extended cruising.