
Tidal/river turbine rotor 500 mm, 7 blades, rounded tips and 20° skew
Model designed and computed with the Heliciel software. Design point: 2 m/s current, 191 rpm (tip speed ratio 2.5). Seven blades with rounded tips and 20° skew: high torque at low speed.
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 | 500 mm |
|---|---|
| Number of blades | 7 |
| Hub diameter | 85 mm |
| Design speed | 191 rpm |
| Fluid speed at design point | 2 m/s |
| Axial load | 396.10 N |
| Torque | 18.081 N·m |
| Shaft power | 362 W |
| Power coefficient Cp | 0.46 |
| Tip speed ratio (TSR) | 2.5 |
| Blade shape | rounded tips, skew 20° |
| Angles of attack | smoothed (10° along the whole blade) |
| Bore | 10 mm |
| Hub length | 93 mm |
| Material used in the computation | 3D-printing PETG |
| Strength at design point | yes |
| Direction of rotation | right-hand |
| Files included | STL, STEP, HLC |
| Reference | T-500-7p-RS |

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.
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