Two cylinder, inverted vertical, compound
Fleming & Ferguson at Paisley near Glasgow
1942
High Pressure (HP) is 17 ins diameter
Low Pressure (LP) is 34 ins diameter
24 ins.
The HP cylinder is controlled by a sliding piston valve and the LP by a conventional slide valve.
The flywheel on this engine was fitted by the museum, to help the engine run smoothly at low speed
There are two eccentrics per valve coupled to Stephenson linkage, which allowed forward and astern manoeuvres to be carried out.
Moving the reversing linkage is assisted by a separate steam cylinder.
The engine developed in the region of 400HP with steam pressure of 125 psi and under 100 max rpm. This would give a maximum speed of 10 knots when moving between jobs.
Steam was provided by two Scotch boilers, each with three oil fired furnaces.