PRE OWNED SPERRY MARINE NAVITWIN V SPERRY MARINE NAVITWIN V MARINE AUTOPILOT

The Sperry Marine NAVITWIN V is a high-performance Heading Management System (HMS) designed to act as the central "brain" for a ship’s heading data. In the Bhavnagar and Alang markets, it is considered an essential component for multi-sensor bridges, providing a safe and reliable way to monitor and switch between multiple heading sources.

SPERRY MARINE NAVITWIN V HEADING MANAGEMENT SYSTEM

PRODUCT OVERVIEW

The NAVITWIN V is more than just a repeater; it is a sophisticated heading control and monitoring unit that manages data from up to four different heading sources (e.g., multiple gyrocompasses and a magnetic compass). Its primary role is to ensure the bridge team always has access to the most accurate heading data by providing automatic monitoring and threshold alarms for compass deviations.

This model is a core part of the Sperry Marine NAVIGAT series and is widely used on tankers, container ships, and offshore vessels that require redundant heading systems to meet SOLAS regulations. With its high-contrast display and intuitive menu navigation, the NAVITWIN V allows officers to compare sensors in real-time and distribute the selected "Heading-to-Steer" data to autopilots, radars, and ECDIS systems across the bridge.

TECHNICAL SPECIFICATIONS

-- Model: NAVITWIN V (Heading Management System)

-- Manufacturer: Sperry Marine (Northrop Grumman)

-- Heading Inputs: 3x Gyrocompass (Serial/NMEA), 1x Magnetic Compass

-- Outputs: Multiple NMEA 0183 ports for Radar, ECDIS, and Autopilot

-- Supply Voltage: 24V DC (18V to 36V DC)

-- Power Consumption: Approximately 15 W

-- Display Type: High-resolution 4.3-inch transreflective color LCD

-- Deviation Alarm: User-adjustable threshold (typically 0.1 to 9.9 degrees)

-- Data Formats: NMEA 0183 (THS, HDT, HDM, HDG), PLHT

-- Operating Temperature: -15C to +55C

-- Protection Class: IP23 (Housing) / IP56 (Front Plate)

-- Compliance: IMO A.424(XI), A.821(19), MSC.64(67), Wheelmark Certified

KEY FEATURES & APPLICATIONS

-- Centralized Heading Monitoring: Continuously compares data from all connected sensors and triggers an alarm if the difference exceeds a pre-set limit, preventing navigation errors.

-- Automatic Sensor Switching: Can be configured to automatically switch to a backup gyro or magnetic compass if the primary heading source fails.

-- Universal Interface: Acts as a data buffer and distributor, taking in various heading formats and outputting clean, synchronized NMEA 0183 data to all bridge equipment.

-- Integrated Magnetic Compass Correction: Features a built-in correction table (deviation table) for the magnetic compass, ensuring accurate backup heading data is always available.

-- User-Friendly Interface: The color display provides clear graphical representations of compass comparisons and a dedicated "Heading-to-Steer" indicator.

-- Compact Modular Design: Designed for easy console mounting, making it a perfect retrofit solution for vessels upgrading their gyro or autopilot systems.

TYPICAL CONDITION (USED/REFURBISHED)

Our refurbished NAVITWIN V units from the Alang yards are put through a rigorous data-integrity test. We verify that all four input channels are parsing NMEA sentences correctly and that the alarm relay logic is functioning perfectly. The color LCD is checked for brightness and color accuracy, and we ensure the internal memory correctly saves the deviation tables and system settings. Each unit is bench-tested with a multi-gyro simulator to guarantee performance before it leaves our facility.

COMPATIBLE BRAND MODELS:

Sperry Marine NAVITWIN V, Sperry Marine NAVIGAT X MK 1, Sperry Marine NAVIGAT X MK 2, Sperry Marine NAVIGAT 200, Sperry Marine NAVIGAT 3000, Sperry Marine NAVIPILOT 4000, Raytheon Anschütz Standard 22, Raytheon Anschütz Standard 30, Furuno SC-50, Furuno SC-70, JRC JLR-21, Tokyo Keiki TG-8000.

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