Four-cylinder steam engine - video

[Altair]

Four-cylinder steam engine by Rich Dosdall. 2:58 video.

Previously:

Steamship triple expansion engine in operation - video
Working 1805 steam engine - photo and GIF
Mini oscillating cylinder steam engine - video
River Don steam engine - photo and video
Giant steam engine in Portugese shopping mall - video and photo

[mklotz]

A tremendous amount of work there and beautifully executed but the overall design is somewhat puzzling.

Placing the flywheel, from which connections to driven devices would be made, in the middle of the four engines would certainly complicate interface design.

Why is the chimney so far removed from the boiler house?

Gear driving a flywheel from multiple wheels leads to friction and wastes torque; a common crankshaft arrangement is usually seen, and for good reason.