Boats · 5-blade B-series (B5-45 to B5-105)
Wageningen B-series marine propeller B5-75, P/D 1.4 – 5 blades, Ø 600 mm
Model designed and computed with the Heliciel software. Design point: 400 rpm at 4.87 m/s (9.5 knots), J = 1.218, sea water. Exact geometry of the Wageningen B5-75 B-series at P/D 1.4: five 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 | 5 |
| Series | Wageningen B5-75 (B-screw series) |
| Expanded area ratio Ae/A0 | 0.75 |
| Pitch ratio P/D | 1.4 |
| Blade shape | B-series segmental sections, constant pitch |
| Hub diameter | 120 mm |
| Pitch at 0.7 R | 840 mm (33.1 in) |
| Design speed | 400 rpm |
| Fluid speed at design point | 4.87 m/s |
| Thrust | 1089 N |
| Torque | 165.5 N·m |
| Shaft power | 6931 W |
| Propulsive efficiency | 0.77 |
| Material used in the computation | nickel-aluminium bronze (NAB) |
| Strength at design point | yes |
| K_T and 10·K_Q computed by Heliciel | 0.184 and 0.466 |
| J at maximum efficiency (Wageningen polynomials) | 1.218 |
| Open-water efficiency of the series at this J (polynomials) | 0.75 |
| K_T and 10·K_Q of the series at this J (polynomials) | 0.138 and 0.358 |
| Direction of rotation | right-hand |
| Files included | STL, STEP, HLC |
| Reference | W-B5-75-PD14 |
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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.
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