Steamship Oster from Bergen

LEPF	36.2	6.6	2.4	191		220	9.5
Built in 1908 at Christianssands Mek. Værksted
Call sign	Measures in meter			Tonnage		Engine kW	Speed Knots
Call sign	Length	Beam	Draught	Gross	Net	Engine kW	Speed Knots
Scotch fire tube boiler with two oil fired furnaces.
Triple expansion steam engine with Stephenson's link-motion.

Steamship Oster at quay in Gothenburg

The Steamship Oster moored outside the
steamship whaler Southern Actor at quay in Gothenburg.

"Oster" is not a random name. The steamship was built to transport important gods and passengers, deliver milk to the dairies and distribute mail in the Oster fiord region.

The engine room onboard Steamship Oster

The top of the Steamship Oster triple expansion engine. In a steam engine provided with Stephenson's link-motion are cylinders and steam chestsalways in a straight line.
From the top:
the low pressure cylinder,
the low pressure steam chest,
the intermediate pressure cylinder,
the intermediate pressure steam-chest,
the high pressure cylinder,
the high pressure steam-chest, the latter is provided with a piston slide valve, hardly visible on the picture.

Triple expansion engine
The triple expansion steam engine onboard Steamship Oster.

Propeller thrust block
The Steamship Oster propeller-thrust-block, to the left, is an axial bearing that imparts the propeller force to the ship.

Steamship Oster from Bergen