Wind turbines · Home and off-grid wind turbines (2.86 to 5.5 m)
Wind turbine rotor 5.5 m, 7 blades, 20° skew
Model designed and computed with the Heliciel software. Design point: 12 m/s wind, 200 rpm (tip speed ratio 4.8), best-efficiency speed found by Heliciel at the published rated wind speed of a commercial off-grid wind turbine of the same diameter. NACA 64A410 airfoil and optimal Glauert chords for 7 blades, at the best-efficiency speed found by Heliciel; tip chord of at least 2.5 % of the diameter, as on Heliciel's wind turbine model. 20° skewed blades.
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 | 5500 mm |
|---|---|
| Number of blades | 7 |
| Hub diameter | 852.4 mm |
| Design speed | 200 rpm |
| Fluid speed at design point | 12 m/s |
| Axial load | 2181.57 N |
| Torque | 630.542 N·m |
| Shaft power | 13206 W |
| Power coefficient Cp | 0.58 |
| Tip speed ratio (TSR) | 4.8 |
| Blade shape | skew 20°, optimal chords (Glauert) |
| Airfoil | NACA 64A410 (transition turbulente) |
| Angles of attack | smoothed (5° along the whole blade) |
| Bore | 170 mm |
| Hub length | 259 mm |
| Blade thickness | 33.2 mm at the root, 25.4 mm at mid-radius (r = 1355.7 mm), 13.7 mm at the tip |
| Material used in the computation | woven carbon/epoxy laminate |
| Strength at design point | yes |
| Direction of rotation | right-hand |
| Files included | STL, STEP, HLC |
| Reference | H-5500-7p-S |
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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