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Ritchie YB-500 Globemaster Compass – Yoke Mounted – Black – 5 Degree card – 12V
The Ritchie YB-500 Globemaster delivers heavy-duty offshore heading for US commercial and large recreational vessels, featuring a 5-inch dial and a versatile yoke mount for flexible positioning.
- Dial Type: 5-Inch PowerDamp Flat Card (5-Degree Increments)
- Mounting: Yoke Mount (Adjustable for Optimum Viewing Angle)
- Lighting: Integrated 12V Green LED Night Illumination
- Stability: Full Internal Gimbaling for Extreme Pitch and Roll
- Safety: Built-In Compensators for Magnetic Deviation Adjustment
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Description
Ritchie YB-500 Globemaster | 5-Inch Yoke Mount Compass
Optimize your blue-water navigation using the Ritchie YB-500 Globemaster, a professional-grade 5-inch compass featuring a robust yoke mount for versatile bridge installation. This master-class instrument utilizes a 5-degree card and DirectiveForce magnets to deliver an exceptionally stable heading reference, ensuring that large yachts and commercial vessels maintain course accuracy during heavy offshore swells and high-vibration engine operations.
Engineered for lifetime service, the YB-500 includes full internal gimbals and 12V green LED lighting for night-time clarity. Ensuring the yoke is securely bolted to a vibration-dampened surface is critical to maintaining the internal movement’s longevity and preventing mechanical fatigue during extended voyages in extreme maritime environments.
Technical Key Features
- Large 5-inch (127mm) open face dial logic.
- 5-degree card markings for precise steering.
- Versatile yoke mount with easy tilt adjustment.
- Integrated 12V green NiteLight for low-light use.
- Full internal gimbals ensure dial stability.
- DirectiveForce magnets for rapid heading lock.
- 100% repairable construction for commercial use.
RITCHIE YB-500 Globemaster Compass (Yoke Mount) Specifications
| Instrument Type | Heavy-Duty Commercial/Offshore Compass |
| Mounting Type | Yoke Mount (Adjustable Bracket) |
| Dial Size/Design | 5.0" (127mm) Flat Dial / 5-Degree Increments |
| Damping System | Full Fluid-Damped Professional Grade |
| Night Illumination | 12V Green LED (24V Optional) |
| Compensators | Adjustable B, C & D Correctors Included |
| Operating Angle | Full Internal Gimbal for Ocean Conditions |
| Housing Material | Cast Aluminum Alloy with Powder Coat |
| Jewel/Pivot | Synthetic Sapphire Jewel & Polished Steel |
| Overall Width | 190 mm (including Yoke) |
| Weight | 3.18 kg (7.0 lbs) |
| Key Mechanical Feature | Removable compass unit for secure storage |
Ritchie YB-500 Globemaster Compass Technical Guide
The YB-500 features a massive 5-inch open-face dial, providing unmatched readability and precision. It is designed for large yachts and commercial vessels where a clear, stable heading is vital for long-distance offshore navigation.
The fully adjustable yoke mount allows the compass to be tilted and positioned at the ideal viewing angle. This versatility is perfect for overhead mounting or placement on top of a console where a fixed flush mount isn't practical.
The high-resolution 5-degree card offers a balance between quick readability and fine accuracy. It allows the helmsman to maintain a precise course with less eye strain during extended watches in heavy sea states.
Yes, it utilizes a hardened steel pivot and sapphire jewel movement. This low-friction internal assembly ensures the dial remains smooth and responsive, resisting the erratic movements caused by vessel vibration.
The unit comes standard with 12V green NiteLight illumination. This specific wavelength of light provides excellent visibility of the dial at night while minimizing the impact on the operator's natural night vision.
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