SIMPSON DENNISON Tandem Compound Launch Engine
£ P.O.A.
Cylinder dimensions:
2½” + 4½” x 4” stroke
£ P.O.A.
2½” + 4½” x 4” stroke
Approx 3½” x 4″ Cylinder
Piston valve, on 4 turned columns.
Approx 21″ High, solid flywheel 8″ Dia.
A very rare, high quality small marine engine made for auxiliary use in small steam boats. For sale in excellent condition.
This is an extremely rare, vane type reversable steam engine of around 4 – 5 H.P. believed made to Outridges patent in the mid 1880’s.
Designed for small, high speed river launches, these rotaty engines were claimed to provide an excellent power to weight ratio and to achieve the then unheard of speed of 12 1/4 m.p.h!