Transom Mounted Cable Driven Rudder System


This rudder setup plan will give you smooth, safe operation with a period look of a vintage “golden age” race boat. A custom look hardware item that will transform any boat build requiring a transom mounted rudder set up for simple shop fabrication.



This transom mounted cable driven boat rudder system was a designed for me by Berryer Design for my recent build of Rocket, the Gentleman’s racer. Berryer Design and I have now decided to collaborate on reproducing the plans and so are very proud to be able to offer this model for sale.

The external transom mounted rudder steers via a hydraulically driven ram, operating an internal quadrant. This is positioned inside the boat, fwd of the transom and supported by a braced bridge system. The internal quadrant then drives the external quadrant via a parallel, tensioned cable system that runs through the transom. The parallel cables ensure smooth operation and consistent cable tension, eliminating the risk of detaching the cable from a pulley as can often be the case with older, multi angled cable steering systems. The setup offers a modern, smooth, safe operation with a period look of the true, vintage “golden age” race boats. This classic boat quadrant driven steering is designed to be cut from plate and welded.

The system would be adaptable for other boat designs but may require modification such as adjusting the internal quadrant bridge as this needs to mount to the next frame fwd of the transom. If you would like to check the suitability of this system for your boat then feel free to contact me.

The file comes in a .STEP format 3D model of the complete assembly and is available for instant download at the checkout. Your machinist will likely need to separate the relevant components in order to prepare the parts for CNC machining. If you think you need the model converted into a different file format then please contact me.


This plan set is licensed for single personal use only. Not for resale or commercial production.