Boats · 7-blade B-series (B7-55 to B7-85)
Wageningen B-series marine propeller B7-85, P/D 0.6 – 7 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 1.74 m/s (3.4 knots), J = 0.436, sea water. Exact geometry of the Wageningen B7-85 B-series at P/D 0.6: seven blades, segmental sections and constant pitch, as on the K_T-K_Q charts. The model scales: the series is geometrically similar at any diameter.
The pack contains the complete propeller as a full-definition STL with root fillet, STEP surfaces (complete propeller and one blade), the Heliciel .hlc project and the computation records.
Characteristics computed by Heliciel
| Diameter | 600 mm |
|---|---|
| Number of blades | 7 |
| Series | Wageningen B7-85 (B-screw series) |
| Expanded area ratio Ae/A0 | 0.85 |
| Pitch ratio P/D | 0.6 |
| Blade shape | B-series segmental sections, constant pitch |
| Hub diameter | 120 mm |
| Pitch at 0.7 R | 360 mm (14.2 in) |
| Design speed | 400 rpm |
| Fluid speed at design point | 1.74 m/s |
| Thrust | 757 N |
| Torque | 60.1 N·m |
| Shaft power | 2519 W |
| Propulsive efficiency | 0.52 |
| Material used in the computation | nickel-aluminium bronze (NAB) |
| Strength at design point | yes |
| K_T and 10·K_Q computed by Heliciel | 0.128 and 0.169 |
| J at maximum efficiency (Wageningen polynomials) | 0.436 |
| Open-water efficiency of the series at this J (polynomials) | 0.48 |
| K_T and 10·K_Q of the series at this J (polynomials) | 0.103 and 0.149 |
| Direction of rotation | right-hand |
| Files included | STL, STEP, HLC |
| Reference | W-B7-85-PD06 |
Need a propeller for your own parameters?
This model was designed and computed with the Heliciel software. For a custom propeller there are two ways: the Heliciel software (Windows: computation, 3D view, STL and STEP exports), and the Heliciel MCP connector, which lets your AI assistant — ChatGPT, Claude, Le Chat and any MCP client — compute a real propeller, with a free 1-day discovery pass.
Similar models
Wageningen B-series marine propeller B7-55, P/D 0.6 – 7 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 1.78 m/s (3.5 knots), J = 0.445, sea water. Exact geometry of the Wageningen B7-55 B-series at P/D 0.6: seven blades, segmental sections and constant pitch, as on the K_T-K_Q charts. The model scales: the series is geometrically similar at any diameter.
- Diameter
- 600 mm
- Number of blades
- 7
- Series
- Wageningen B7-55 (B-screw series)
Wageningen B-series marine propeller B7-55, P/D 0.8 – 7 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 2.48 m/s (4.8 knots), J = 0.619, sea water. Exact geometry of the Wageningen B7-55 B-series at P/D 0.8: seven blades, segmental sections and constant pitch, as on the K_T-K_Q charts. The model scales: the series is geometrically similar at any diameter.
- Diameter
- 600 mm
- Number of blades
- 7
- Series
- Wageningen B7-55 (B-screw series)
Wageningen B-series marine propeller B7-55, P/D 1.0 – 7 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 3.21 m/s (6.2 knots), J = 0.802, sea water. Exact geometry of the Wageningen B7-55 B-series at P/D 1.0: seven blades, segmental sections and constant pitch, as on the K_T-K_Q charts. The model scales: the series is geometrically similar at any diameter.
- Diameter
- 600 mm
- Number of blades
- 7
- Series
- Wageningen B7-55 (B-screw series)
Wageningen B-series marine propeller B7-70, P/D 0.6 – 7 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 1.77 m/s (3.4 knots), J = 0.442, sea water. Exact geometry of the Wageningen B7-70 B-series at P/D 0.6: seven blades, segmental sections and constant pitch, as on the K_T-K_Q charts. The model scales: the series is geometrically similar at any diameter.
- Diameter
- 600 mm
- Number of blades
- 7
- Series
- Wageningen B7-70 (B-screw series)
Wageningen B-series marine propeller B7-70, P/D 0.8 – 7 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 2.47 m/s (4.8 knots), J = 0.617, sea water. Exact geometry of the Wageningen B7-70 B-series at P/D 0.8: seven blades, segmental sections and constant pitch, as on the K_T-K_Q charts. The model scales: the series is geometrically similar at any diameter.
- Diameter
- 600 mm
- Number of blades
- 7
- Series
- Wageningen B7-70 (B-screw series)
Wageningen B-series marine propeller B7-70, P/D 1.0 – 7 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 3.19 m/s (6.2 knots), J = 0.799, sea water. Exact geometry of the Wageningen B7-70 B-series at P/D 1.0: seven blades, segmental sections and constant pitch, as on the K_T-K_Q charts. The model scales: the series is geometrically similar at any diameter.
- Diameter
- 600 mm
- Number of blades
- 7
- Series
- Wageningen B7-70 (B-screw series)
Other categories : FPV drones · Aircraft, paramotors · Wind turbines · Tidal turbines · Kaplan turbines · Fans · Water pumps