Boomeranger Aluminium C680 RIB
- Model
- AJ 245
- Length
- 7.05 m
- Speed
- 40 kn
- Engine
- Mercury TDI 4.2 L, 250 kW (335 hp) / 4200 rpm
AJ series | Combi-Frame
Alamarin-Jet AJ 245
The first Combi-Frame model, available in long-tail or short-tail installation to suit the stern layout; manufacturer's case studies include rescue, SAR and work boats.
235 kWMax. input power (approx. 320 hp)
4,600 rpmMax. impeller shaft speed
105 kgDry weight
245 mmMax. impeller diameter
Features
Features
Patented Combi-Frame
Two hull inserts allow long-tail or short-tail installation, giving more flexibility in where the waterjet sits in the boat; the AJ 245 was the first Combi-Frame model.
Bollard pull and acceleration
According to the manufacturer, the AJ 245 leads its class in bollard pull, cavitation margin and acceleration, making it the best-performing waterjet of its size.
Integrated steering cylinder
The steering hydraulic cylinder is integrated into the unit and works with a universal hydraulic system.
Impeller housing, bearings and cooling
The conical impeller housing allows tip clearance adjustment; oil-lubricated main bearing, grease-lubricated rear bearing and integrated oil cooler.
Applications: Fast rescue boats, SAR boats, coast guard RIBs, work tenders, survey boats, yacht tenders (manufacturer's case studies)
Specifications
Full specifications
| Max. input power | 235 kW (320 hp per the manufacturer) |
|---|---|
| Max. impeller diameter | 245 mm |
| Max. impeller shaft speed | 4,600 rpm |
| Dry weight | 105 kg |
| Pump type | Mixed flow |
| Material | Aluminium / stainless steel |
| Reversing bucket actuation | Hydraulic |
| Compatible control systems | ACU, Sigma |
| About the control systems | See Sigma, ACU and Delta DP |
Installation dimensions (mm)
| Dimension | Long tail | Short tail |
|---|---|---|
| A | 429 | 429 |
| B | 1,316 | 1,316 |
| C | 584 | 584 |
| D | 390 | 390 |
| E | 279 | 640 |
Dimension codes refer to the manufacturer's outline drawing; the full 2D drawing is available by email on request.
References
References
ZMEY 850
- Model
- Twin AJ 245
- Length
- 8.5 m
- Speed
- 40 kn
- Engine
- 2 x Steyr 306 J38, 215 kW (292 hp) / 3800 rpm
ProZero 11m FRDC Mrk2
- Model
- Twin AJ 245
- Length
- 11.5 m
- Speed
- 32.5 kn
- Engine
- Bukh Seasall S270J, 271 hp / 3800
Tideman RBB 700 WJ
- Model
- AJ 245
- Length
- 7.10 m
- Speed
- 35 kn
- Engine
- Yanmar 4LV-195, 195 hp
Downloads
Downloads & enquiries
Alamarin-Jet 2026 Product Range (Chinese edition)
A Chinese edition is planned.
AJ 245 2D outline drawing
Available by email on request.
After-sales in Taiwan | Hallmark Marine Co., Ltd. (authorized Alamarin-Jet distributor in Taiwan)
Equipment selection, installation guidance and sea trials, scheduled maintenance and repair, and genuine parts. For parts enquiries, please provide the brand, model, waterjet serial number and vessel name. Warranty follows the manufacturer's terms and is decided case by case.
Equipment selection, installation guidance and sea trials, scheduled maintenance and repair, and genuine parts. For parts enquiries, please provide the brand, model, waterjet serial number and vessel name. Warranty follows the manufacturer's terms and is decided case by case.