ComNavís well-known MOdel 1420 autopilot (left) is now capable of operating up to four Bottom Scale Rudder Indicators.

When coupled with an autopilot, a rudder angle indicator displays steering changes that the autopilot has transmitted to the boatís rudders. ComNavís recently revised Model 1420 is now capable of displaying this information through up to four of the companyís Bottom Scale Rudder Angle Indicators simultaneously.

The autopilotís ability to operate multiple rudder indicators is made possible by newly installed software not included on earlier 1420 models. Suitable for small to mid-sized vessels, the autopilot can steer by GPS, Loran or manual input. It is capable of operating with most standard steering systems and offers 14 selectable parameters for fast and slow modes of operation. The 1420ís basic electronics package includes a control head, processor and fluxgate compass. Also included are outputs for reversing drive units or solenoid valves, rotary or linear feedback and all interconnecting cables.

To confirm the autopilotís commands, ComNavís Bottom Scale Rudder Angle Indicator shows the ruddersí center or amidships position is located at the bottom of the display. Enclosed in a high impact-resistant polycarbonate plastic case, the indicator is flush-mounted with a water-resistant front face. An optional watertight case is available for surface mounting in wet locations.

The Model 1420 Autopilot operates at 10-40 VDC with an average power consumption of 3 A. Peak current draw for the solenoid output and DC reversing pump is 20 A. To provide lighting for The Bottom Scale Rudder Angle Indicator, 10-40 VDC is required.

The retail price of the ComNav 1420 Autopilot with reversing pump is $1,600 USD. The Bottom Scale Rudder Indicator sells for $250 USD. From ComNav, 1915 Stainsbury Avenue, Vancouver, BC V5N 2M6. Phone 604-872-3000 or website: