A sailboat wheel, or ship's wheel, is the primary steering apparatus located at the helm, allowing the helmsman to control the rudder's direction. It typically consists of a central hub (nave), spokes, and an outer rim, often connected to the rudder via cables, chains, or hydraulic systems to steer the vessel.

Key Components of a Sailboat Wheel System
The Wheel/Helm: The steering apparatus, ranging from traditional wooden wheels with spokes to modern, minimalist wheels.

Spokes: Handles extending from the hub through the rim, traditionally numbering six to twelve, used to turn the wheel.

Hub/Nave: The center piece that connects to the axle, often covered by a brass plate.

Rim/Felloes: The outer circular structure, frequently made of multiple sections.

Pedestal: The stand upon which the wheel is often mounted, which may contain the compass and navigation instruments.

Steering Mechanism: Cables, chains, or hydraulic lines that connect the wheel to the rudder post, translating rotational movement into rudder angle.

Function
The wheel serves as part of the overall helm system. Turning the wheel clockwise moves the rudder to steer the boat towards the starboard (right), while counter-clockwise turns move it to port (left). Modern systems often include autopilot, which interfaces with this system to hold a course.