Max indication clinometer

A clinometer is an instrument fitted with a pendulum function that swings against a scaled dial which reads the value of the angle by which the ship is tilted at any given time. The angular scale is designed to indicate the tilt values both to starboard and port, so that the zero value is placed in the centre indicating when the ship is at rest. Every vessel, after construction or major refurbishment that may affect the centre of gravity, undergoes an inclining test. This involves moving specific weights from side to side and measuring the angles of tilt obtained in order to calculate the co-ordinates of the centre of gravity and the metacentric height, as well as correcting, theoretically calculated, righting moment arm curves relevant to high heeling. These values, together with additional data such as centre of buoyancy, buoyancy force, and the vessel's gravity, are used to determine stability. This is a naval architecture term for the ability of a vessel to withstand external forces such as gravity, sea waves and wind that may cause it to capsize, and is therefore fundamentally concerned with safety. Ship stability criteria are defined by Polish and international regulations and may additionally depend, among other things, on the type of cargo being carried. Ship crews are required to constantly check the ship's heel, which is important not only during stormy weather, when the waves at sea are large and wind gusts can be strong and violent, but also when changing course and loading and unloading the ship in port. Models, as the one featured, may have been used on a variety of vessels. One of the well-known sailing ships on which the clinometer of the Zasadnicza Szkola Zawodowa of the Central Cooperative Workers' Union was installed is the STS Fryderyk Chopin. This particular one was found on the tugboat Lis. Leszek Kocela