{"product_id":"qbp909137","title":"Raymarine Type 1 Linear Drive, 12V, 300mm Stroke, For Mechanical Steering","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Raymarine M81130 is a 12V Type 1 mechanical linear autopilot drive for mechanically steered boats up to 11,000 kg or 24,000 lb displacement. Mounted below deck, it drives the rudder directly by pushing on a tiller arm or rudder quadrant, making it a practical match for sailing yachts and mechanically steered vessels that need an autopilot drive kept out of the cockpit.\u003c\/p\u003e\u003cp\u003eThis short-shaft drive has a 300 mm (12 in) maximum stroke, 295 kg (650 lb) peak thrust, and an 11-second hard-over to hard-over time under no load. It uses an electric motor with an electromagnetic fail-safe clutch, a high-tensile belt drive, and an epicyclic gearbox, so hand steering remains smooth when the autopilot is in standby.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003e12V Type 1 linear drive for existing mechanical steering systems and below-deck autopilot installations.\u003c\/li\u003e\n\u003cli\u003eRated for boats up to 11,000 kg (24,000 lb) displacement when correctly matched to the vessel and steering geometry.\u003c\/li\u003e\n\u003cli\u003e300 mm (12 in) maximum stroke supports short-shaft mechanical linear drive installations.\u003c\/li\u003e\n\u003cli\u003e295 kg (650 lb) peak thrust and 735 Nm (6,500 lb.in) maximum rudder torque for direct rudder actuation.\u003c\/li\u003e\n\u003cli\u003eElectromagnetic fail-safe clutch releases the drive when the autopilot is disengaged, keeping manual steering free from unnecessary drag.\u003c\/li\u003e\n\u003cli\u003eWorks with Raymarine ACU-200 actuator control units in Evolution autopilot systems.\u003c\/li\u003e\n\u003cli\u003eAverage power consumption of 18-36 W helps manage load on a 12V house or electronics supply.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and fit\u003c\/h6\u003e\u003cp\u003eThe fixed end of the drive mounts to a strong structural point below deck, while the moving end connects to the rudder stock or quadrant through an independent tiller arm. The steering system must be able to back-drive from the rudder, and accessory fittings from the steering manufacturer may be needed to complete the installation.\u003c\/p\u003e\u003cp\u003eBecause the drive works directly on the rudder rather than on the helm, careful alignment and correct tiller-arm geometry matter. It is best suited to boats where there is enough access around the rudder quadrant or tiller arm for the full 300 mm stroke and for service inspection after installation.\u003c\/p\u003e\u003ch6\u003eSystem compatibility\u003c\/h6\u003e\u003cp\u003eThis unit is for 12V DC autopilot systems and is commonly paired with an ACU-200 as part of a Raymarine below-deck autopilot setup. It is the drive unit only, so the autopilot computer, control head, sensor core, cabling, and any steering-specific hardware must be matched separately to the vessel.\u003c\/p\u003e\u003ch6\u003eUse on board\u003c\/h6\u003e\u003cp\u003eThe M81130 suits owners who want below-deck steering assistance for cruising, passage making, or sail handling when the helm needs to stay steady for long periods. Its low backdrive force is especially useful on boats where the helm is still used manually between autopilot runs.\u003c\/p\u003e","brand":"Raymarine","offers":[{"title":"Default Title","offer_id":52023849713845,"sku":"QBP909137","price":2374.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1330902_qbp909137.webp?v=1780192037","url":"https:\/\/www.qualityboatparts.com\/products\/qbp909137","provider":"Quality Boat Parts","version":"1.0","type":"link"}