🔍 Key Concepts

• Double-acting steering rams: one side of each piston is on the high‑pressure (driving) side and the other on the low‑pressure (return) side. • How a right rudder command makes the tiller move: to get right rudder, the tiller head must move in the opposite direction. • Which cylinder is pushing and which is pulling when the rudder goes right, and which ports/rods in the illustration belong to that pushing side.

💭 Think About

• For a right rudder command from amidships, in which direction does the tiller (N) have to move in the picture to turn the rudder to starboard? • Once you know the tiller’s direction, which ram must extend and which must retract to produce that motion? • On the ram that is extending (doing the main pushing), which labeled hydraulic line and which labeled rod/pin are on the high‑pressure, heavily loaded side?

✅ Before You Answer

• Identify which cylinder (port or starboard) is doing the main pushing for right rudder from amidships. • Match the pushing side of that cylinder to the correct hydraulic port/line letter in the diagram. • Confirm which rod or pin letter on that same side of the ram takes the compressive load when the cylinder pushes the tiller.