The area includes Salasel Castel, which is the axis for operation of the hydraulic system. This device controls slave cylinders located at the other end of the hydraulic system. The museum exhibits a reconstruction of the hydraulic system. Brakes were drums, with a hydraulic system. The crash was blamed on the malfunction of the plane's hydraulic system. This allowed trailed implements to be supported on a hydraulic system. This is done in a diagonally split hydraulic system. Each engine drove an independent hydraulic system. The largest hydraulic system was in London. Electric power steering was offered in place of the hydraulic system in its predecessor. Adjustments and further flights discovered that the problem was low pressure in the hydraulic system. A steam plant powered the hydraulic system. In 1932 the propeller was removed and a hydraulic system installed. The hitch lifting arms are powered by the tractor's own hydraulic system. The Curtiss-Electric propeller and the complex hydraulic system had frequent maintenance problems.