Metric units


Owner: David and Marjorie Thorpe

Area: USA


Launch. Construction: Balsa-core GRP.
Hull model: Rochesterville, fantail designed by Jim Webster at Rochester, NY, USA in 1992
Built 2002 by owner at New Hamshire, USA
Fit out 2002 by Owner at New Hampshire, USA
LOA: 25' 0", LWL: 22' 0", Beam: 7' 2", Draft: 3' 6", Displacement: 4200 lbs.
White oak decking, seating, shear strake, combings, rub rail, and toerails. Canopy roof of mahogany covered with 6 oz. fiberglass. Stantions of white oak. Six light operable skylight of white oak.


Built 2001 by Benson Mountain Co. at Rhode Island, USA
Fuel: wood, Pressure: 150 psi, Heating area: 46 sqft,
24" dia Steel barrel. 63 X 1 1/4" dia Steel tubes. welded construction,
condensing, engine driven pump, hand pump, injector, feed water heater, Windermere kettle, whistle, siren,


2 cyl compound. 3" + 5 1/4" X 3 3/4"
Built 2009 by Owner at New Hampshire, USA
Designed by: John York
Piston valve on HP, slide valve on LP valve. Stephenson valve gear.
Power: 11 HP
Air and feedwater pumps driven from an external crankshaft running at 1/2 engine speed.


Bronze, 3 blades, Right Hand, 24" X 39"
Shaft: 1 1/4" Stainless Steel
Elliot Bay design


Started construction in 1999 with initial launch in September 2002 without seating or canopy. Original engine was a much-modified Crescent compound built by the owner. Seating was added in 2003 and a canopy in 2005. The owner-built York compound engine replaced the original engine in 2009.

Added to the register: 2014.06.12. Last Modified: 2014.06.13.


York compound engine

Gauge board - Boiler, HP, LP, vacuum and feedwater pressure

Replica of U.S. Navy Type K engine throttle valve.