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Holyhead Marine ORC 121 (Offshore Raiding Craft)
Holyhead Marine ORC (Offshore Raiding Craft) Cabin Variant
2010s to Present (Modern configuration) · Military/Paramilitary Fast Pursuit Boat
Rarity Score
7/10 - Rare; specialized craft not available to the general public, typically found in military or government ports
Spot Difficulty
6/10; likely to be seen in major UK naval ports (Poole, Portsmouth) or operational coastal stations
Engine & Performance
Engine: Triple Yamaha 300hp-350hp V6/V8 Outboard Motors, total combined ~900-1050hp
Transmission & Drivetrain: Integrated Outboard Marine Drive Units with stainless steel propellers
Performance: Top speed in excess of 45-50 knots (~55+ mph), high-speed tactical maneuverability, offshore sea-keeping capability
Exterior
Safety orange cabin superstructure with dark grey/black hull and D-section inflatable fendering; features a specialized radar arch and aft engine protection bars
Interior Features
Shock-mitigating seating for crew, specialized maritime navigation/comms suite, weatherproof tactical cabin, and flat-floor deck
Condition Assessment
Good/Very Good; showing typical light wear consistent with operational harbor use and exposure to salt spray
Condition Issues: Slight oxidation on external mounting hardware, standard marine fouling potential on lower units, minor scuffs on inflatable collars
Estimated Mileage: Estimated 500-1,500 engine hours
Historical Significance
Key asset for UK Royal Marines and various Port Authorities for patrol, insertion, and rapid response; high-performance military-grade design
Notable Features
Triple-engine configuration for redundancy and speed; armored or hardened hull options; enclosed cabin for all-weather operation
Production Numbers
Estimated ~100+ units across various configurations (Mid-Console, Cabin, and Open)
Valuation
Estimated Market Value: $250,000 - $450,000 (Commercial/Government value)
Auction Estimate: $150,000 - $275,000 (Government surplus valuation)
Maintenance Recommendations
Regular outboard service intervals (100-hour oil/filter), anode replacement for corrosion control, and periodic UV protection for the fendering
Fun Facts
The ORC is designed to be air-transported by C-130 Hercules or underserved by CH-47 Chinook; the cabin variant is specifically designed to protect crews from ‘whole-body vibration’ in rough seas; these craft can be fitted with GPMG or HMG weapon mounts for tactical roles.
Identified on: 6/13/2026
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