Today I am putting the Olympic class triple expansion reciprocating steam engine up for voting.
The set consists of 1988 parts and has a rotating crankshaft with working connecting rods for the pistons and valves. Within the scope of possibilities it is realised quite detailed, so you can easily distinguish between the high pressure cylinder, the medium pressure cylinder and the two low pressure cylinders.
The indicated direction switch and the piping complete the engine and a small signboard as well as a miniature engine room telegraph round off the model.
The valve gear has been simplified because of the size proportions, but it works.
The starboard version of the engine is pictured.
A total of six of these steam engines were produced in the early 20th century. Their output is estimated at 15,000 hp each.