Coursemaster Autopilots

1974 - 1975 CM100
One of the first CM100's in a Dovetail Wooden Box
1975-1979 CM100
World's first autopilot with a course memory - the vessel would steer automatically to any course selected. Other autopilots required the vessel to be steering within 45 degrees of the course before engaging. Light sensing internal card compass. Proportional and counter rudder steering control. Early CM100's used relay drive switching which was later changed to transistor switching in the CM100A.
1979-1984 CM200
Improved compass sensing to handle high speed vessels.
1981-1988 CM300
World's first digital logic autopilot incorporating a fluxgate compass. Also the world's first autopilot to interface to a transit satellite navigator using the CM304 Course Programmer.
1984-1991 CM250
Simplified version of the CM300 using touch pad controls.
1988-1994 CM500
Microprocessor control and NMEA0183 interface to transit satellite navigators, GPS and wind instruments. High power FET drive switching. One model 11-32 volts.
1990-1994 CM450
Simplified compact version of the CM500 with only 6 keys to control all functions.
1993-1999 CM600
Replacement for the very popular CM500 with a large graphics display. Improvements to electronics to accommodate poor power supplies on vessels and radio frequency interference (RFI).
1993-1997 CM400
Small low cost autopilot for vessels up to 12m (40').
1996-1999 CM550
Upgrade to CM450 but using a course change knob.
1998-2000 CM420
Upgrade to CM400 using silicon keys for improved tactile feel and reliability.
1998-2002 CM700
Modern styling and large graphics display with rudder angle indicator and backlit silicon keys
1998-2002 CM750
CM700 with the addition of a course change knob for easier control.
1999-Current CM650
Dedicated commercial autopilot with all controls, display, electronics and connections built into the one case. Simple knob control of all commonly used functions allows the autopilot to be easily controlled, even if using gloves. Large graphics display includes rudder angle indicator.
2002-2004 CM800
Incorporates all latest technology and features you need to hold a course in all sea conditions
2002- 2004 CM850
The difference between the CM800 and CM850 comes down to ... whether you prefer to turn a knob to change course (CM850) or to press buttons on a touch-control panel (CM800).
2003 - current New CM80i autopilot for smaller powerboats with hydraulic steering
The intelligence built into the system means there is no need for a rudder feedback, and the system adjusts itself to suit boat speed and sea state.

2004 - current CM800i and CM850i autopilots with intelligent self-tuning software are popular on both sailing and powerboats.
The CM850i autopilot (pictured) features a course change knob and the CM800i uses a touch panel control.

2005 - current CM880 autopilot - Commercial Autopilot
The CM880 commercial autopilot system 12-24V robust pilot designed to IMO standards for use on workboats, trawlers, and coastal freighters of 50 to 100 tonnes or more.

2005 - current New CM85i autopilot
Whether racing solo around the world or cruising to your favourite anchorage, the new CM85i autopilot with intelligent, self-tuning software features all the latest technology in a compact waterproof case that matches most instruments.