NAVIGAT 100 vs 200 Gyrocompass - Complete Comparison Guide

Accurate heading information in marine navigation is more than a technical detail. It directly affects vessel safety, regulatory compliance, and smooth daily operations. Systems such as ECDIS, radar, autopilot, dynamic positioning, and track control all rely on a stable, precise, and continuously available heading source. This leads to an important decision for vessel owners and operators to decide which gyrocompass fits their vessel.

As an authorized provider of marine equipment and services, KDU World supports vessel owners and operators in choosing the right solution based on their operational needs. Two widely used options are the NAVIGAT 100 and NAVIGAT 200. While both come from the same proven technology family, they are designed for different system architectures and different levels of redundancy.

Both NAVIGAT 100 and NAVIGAT 200 are built on Sperry Marine’s spinning mass gyro technology, known for long service life, proven mechanical stability, and independence from external signals such as GPS for heading determination. These systems are designed to meet stringent international maritime performance and safety standards.

Key technological foundation across the family:

• Spinning mass gyro technology with long gyrosphere life
• High heading accuracy and stability
• Low lifecycle maintenance requirements
• Compact footprint for easy retrofit
• Compliance with major IMO, MED, and classification society standards

The NAVIGAT 100 is designed as a fully self-contained, standalone gyrocompass system. It integrates all essential interfaces in a single unit, eliminating the need for external distribution hardware in most installations.

Core Strength

NAVIGAT 100 delivers cost-efficient compliance and reliable heading for vessels that operate with a single gyro requirement.

Key Features

• Standalone spinning mass gyro system
• All required heading outputs are integrated into one unit
• Easy integration with third-party bridge systems
• Support for legacy protocols and retrofit environments
• Compact footprint matching legacy compass installations
• Low gyrosphere maintenance intervals
• Rapid installation and retrofit capability
• Independent heading sensor not dependent on GPS
• Type approved under MED Wheelmark and relevant IMO requirements

Operational Benefits

1. Cost Efficiency
   NAVIGAT 100 offers a low initial investment and is very competitive in through-life cost. With minimal external components and low service demand, it reduces total ownership cost.
2. Simplicity of Installation
   Since interfaces and distribution are built into the unit, installation time is short. This is particularly valuable during retrofits or tight drydock windows.
3. Reliability and Accuracy
   The digital pickup technology provides fast settling time and stable heading performance, even under dynamic vessel motion.
4. Ideal for Replacement Projects
   NAVIGAT 100 is an excellent drop-in solution for replacing aging spinning mass gyros on existing bridges.

Best Suited For

• Vessels requiring single gyro compliance
• Operators focused on cost control and simplicity
• Retrofit projects replacing legacy compasses
• Vessels where complex multi-gyro redundancy is not required

The NAVIGAT 200 is designed to work on ships where it is essential to have heading redundancy, system integration, and operational resilience. It is not a stand-alone compass but a component of the Sperry Marine CompassNet Heading Management System.

Core Strength

NAVIGAT 200 enables single, dual, triple, or quadruple gyro configurations, supporting advanced vessel classes and operations that demand high redundancy.

System Architecture Advantage

• Ethernet-based communication for simplified installation
• Designed for integration into CompassNet
• Supports multiple gyrocompass systems plus magnetic compass inputs
• Single access point for configuration via NAVITWIN V CDU
• Up to 8 control and display units in a CompassNet system

Advanced Features

• North speed error corrected true heading
• High resolution Rate of output
• High-speed follow-up system up to 100° per second
• 180° heading offset function for shuttle vessels
• Automatic North Speed Error Correction
• Built-in test equipment
• Short installation time
• Easy integration with magnetic compasses, GPS compasses, FOG, and third-party gyros
• HSC Approved
• Low lifecycle cost with long gyrosphere life

Compliance and Classification Support

NAVIGAT 200 supports configurations aligned with class notations, such as

• DNV NAUT-OC and NAUT-AW
• GL NAV-INS
• DNV DPS-2 and DPS-3
• MED Wheelmark certification
• IMO performance standards, including ROT and HSC requirements
• ISO 16328

This makes it highly suitable for vessels with advanced navigational class requirements.

Operational Benefits

1. Redundancy and Safety

Several gyro arrangements guarantee the constant availability of heading if one of the units fails.

1. System Flexibility

The phased upgrades may also be made to existing compasses and sensors, eliminating the need to replace a system.

1. Centralized Control

The operators can operate the heading system via a single interface, and this makes it easy to operate and perform diagnostics.

1. Future-Ready Architecture

The open CompassNet platform enables other sensors and upgrades as the operational requirements change.

Best Suited For

• High-value vessels requiring redundant heading sources
• DP vessels with DPS-2 or DPS-3 class requirements
• High-speed craft and shuttle vessels
• Offshore, research, and specialized vessels
• Operators planning long-term system scalability

The choice between NAVIGAT 100 and NAVIGAT 200 is not merely the issue of specifications. It concerns vessel type, class requirements, operational profile, and future upgrade plans. KDU World, as an authorized marine equipment provider, presents:

• Vessel-based technical consultation
• Distribution of authentic Sperry Marine systems
• Connection to existing bridge infrastructure
• Installation and commissioning services
• Lifecycle service and maintenance

Having operations that assist clients in both the UAE and the international markets, KDU World makes sure that the navigation systems not only meet the required standards but also are optimized to perform well, be safe, and have a long lifespan.

Established in 2005, KDU Group has been successfully delivering innovative solutions and products around the world through its collaborations with global change makers, proving its reliability & expertise in both marine and industrial services.