The Simrad S35 is designed for indoor and outdoor bulkhead mount and is made of shock resistant polyxymethylene. Non Follow Up operation means the rudder moves while the lever is held at maximum left (port) or right (starboard) position; the lever has spring-loaded return to midposition. A push button with light indicator is used for autopilot mode selection when connected to a Simrad J3XX junction unit.
The Simrad S35 is Wheelmark approved for AP50 and AP50 Plus Autopilot systems.