Download PDFDescription
The Beta Marine Engine – Beta 30 is a powerful 3-cylinder diesel marine engine delivering 30 hp (21.7 kW) at 3,600 RPM. Designed for sailboats 30–36 ft (6–7 ton displacement), it provides quiet, dependable operation and full marinized reliability.
Key Features
- Three-cylinder naturally aspirated Kubota-based engine.
- 1,123 cc displacement; 78 × 78.4 mm bore & stroke.
- Heat exchanger cooling, fresh/sea water pump, wet exhaust manifold for marine environment.
- High-inertia flywheel and intake silencer for smooth, quiet running.
- Standard ABV control panel, flexible mounts, R&D flexible coupling.
- Standard 70 A (or 60–65 A) 12 V serpentine-belt-driven alternator.
- Includes mechanical fuel lift, filtration and oil-change pump.
Duty Cycle & Usage
- Application: Mid-size marine propulsion
- Load Variations: Light to moderate
- Load Factor: 40%–80%
- Annual Use: Up to ~2,000 hours/year
- Installation Angles: ≤ 15° static, ≤ 25° heeling
Technical Specifications: Beta 30 Marine Engine
| Power Output | 30 hp (21.7 kW) @ 3,600 RPM |
|---|---|
| Cylinders | 3 inline |
| Displacement | 1,123 cc |
| Bore & Stroke | 78 × 78.4 mm |
| Cooling System | Fresh/raw water heat exchanger Wet exhaust manifold |
| Fuel System | Indirect injection, mechanical governor, lifting pump, fuel filters |
| Alternator | 70 A (12 V) serpentine belt (60–65 A typical) |
| Transmission | TMC 40 or Technodrive/Seaprop options |
| Dry Weight | ≈ 130–139 kg (287–306 lb) |
| Start System | 12 V electric starter |
| Control Panel | ABV series with tachometer, hour meter, alarms |
Operating Conditions
- Ambient Temp: ≤ 45 °C
- Fuel Type: EN 590 marine diesel
- Installation Angles: ≤ 15° static / ≤ 25° heeling
Applications
The Beta 30 Marine Engine is especially suited for:
- Sailboats 30–36 ft (6–7 ton displacement)
- Atomic 4 diesel repowers
- Classic yachts, tenders and light trawlers
- Medium-displacement retrofit installations
kW 21.7
RPM 3600
Duty Mid-size marine propulsion
Emissions RCD II, EPA Tier III (U.S. Recreational Use)
