Description
Vessel Technical Data Sheet
Vessel Type: High-Performance Power Catamaran
Primary Use: Passenger Transport / Dive Boat / Offshore Excursions
Certification: EU Recreational Craft Directive (RCD) Category B – ‘Offshore’
1. Principal Dimensions
| Parameter |
Symbol |
Units |
Value |
Notes |
| Length |
|
|
|
|
| Maximum Length (with platform) |
LOA |
m |
16.30 |
|
| Length of Hull |
L_H |
m |
15.23 |
|
| Length at Waterline (DWL) |
LWL |
m |
14.81 |
Primary hull length for hydrodynamics |
| Beam |
|
|
|
|
| Maximum Beam |
BMAX |
m |
6.09 |
Provides exceptional stability |
| Beam of Hull |
B_H |
m |
6.09 |
|
| Beam at Waterline (DWL) |
BWL |
m |
1.53 |
Narrow waterline beam reduces drag |
| Beam Between Centres of Buoyancy |
BCB |
m |
4.04 |
Critical for stability calculations |
| Depth & Draught |
|
|
|
|
| Maximum Depth |
DMAX |
m |
2.36 |
|
| Canoe Body Draught (DWL) |
T_C |
m |
0.66 |
Shallow draft allows access to secluded areas |
| Operating Draught (LDC) |
T_MAX |
m |
1.12 |
Fully loaded condition |
| Freeboard |
|
|
|
|
| Freeboard Forward |
F_F |
m |
1.62 |
Good seakeeping, keeps bow dry |
| Freeboard Midship |
F_M |
m |
1.70 |
|
| Freeboard Aft |
F_A |
m |
1.29 |
|
2. Mass & Displacement
| Parameter |
Symbol |
Units |
Value |
Notes |
| Light Craft Mass (LCC) |
m_LCC |
kg |
9,200 |
Basic vessel, ready to operate (crew, fluids) |
| Mass at Minimum Operation Condition (MOC) |
m_MCC |
kg |
9,800 |
Typical operating mass |
| Loaded Craft Mass (LDC) |
m_LDC |
kg |
16,800 |
Design maximum: 40-50 passengers + full tanks + gear |
| Maximum Payload |
m_MTL |
kg |
7,600 |
Difference between LDC and LCC |
| Volume Displacement (at DWL) |
∇ |
m³ |
12.81 |
|
| Immersion (at DWL) |
– |
kg/cm |
396.4 |
~396 kg will sink the hull 1 cm; crucial for load monitoring |
3. Performance & Propulsion
| Parameter |
Symbol |
Units |
Value |
Notes |
| Engines |
|
|
|
|
| Number of Engines |
– |
– |
2 |
Twin-engine configuration for redundancy & maneuverability |
| Recommended Power |
P |
HP |
2 x (240 – 700) |
Wide power range for different performance needs |
| Speed |
|
|
|
|
| Max Speed (Lightship, MOC) |
V_MAX |
kts |
34 – 36 |
High performance in light condition |
| Max Speed (Full Load, LDC) |
V_MAX |
kts |
31 – 34 |
Respectable speed even at full capacity |
| Recommended Cruising Speed |
V_CR |
kts |
28 – 30 |
Optimal balance of speed and fuel economy |
4. Tank Capacities & Accommodation
| Parameter |
Units |
Value |
| Tankage |
|
|
| Fuel |
Liters |
2 x 1,500 (3,000 Total) |
| Water |
Liters |
2 x 200 (400 Total) |
| Waste |
Liters |
2 x 200 (400 Total) |
| Personnel |
|
|
| Crew |
Persons |
2 – 3 |
| Passengers / Drivers |
Persons |
40 – 50 |
| Dive Tanks |
Units |
Up to 80 |
5. Hydrodynamic Coefficients & Parameters
| Parameter |
Symbol |
Value |
Interpretation |
| Block Coefficient |
C_B |
0.43 |
Slender hulls with low resistance, typical of fast planing craft. |
| Midship Section Coefficient |
C_M |
0.567 |
Moderate cross-section area, indicating a defined “V” shape. |
| Waterplane Area Coefficient |
C_WP |
0.852 |
Relatively full waterplane, contributing to initial stability. |
| Prismatic Coefficient |
C_P |
0.758 |
Optimized for semi-planing/planing speeds, efficient at high speed. |
| Longitudinal Center of Buoyancy |
LCB/LWL |
0.425 |
Slightly aft of amidships, ideal for planing attitude and seakeeping. |
| Length to Displacement Ratio |
LWL / ∇^(1/3) |
6.335 |
Confirms a light, high-speed hull form. |
| Displacement to Length Ratio |
DLR |
112.8 |
Very low, indicating a lightweight vessel for its length. |
| Static Load Factor |
C_D |
0.484 |
Relates to the load carried per unit of hull volume. |
| Deadrise Angle at Transom |
β |
11° (14°) |
Moderately low deadrise, optimized for speed and seakeeping. |
Summary & Key Characteristics:
- High Performance: The low displacement-to-length ratio (DLR) and prismatic coefficient (C_P) are engineered for high-speed operation.
- Significant Payload: Can carry a payload nearly equal to its own lightship mass (7,600 kg vs. 9,200 kg), demonstrating high efficiency.
- Stable Platform: The wide beam (6.09m) and twin-hull form provide inherent stability for passenger comfort and onboard activities.
- Offshore Capable: Certified for “offshore” use (RCD Category B), meaning it is designed to handle significant waves and winds.
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