Kaplan turbines · 4 m head · 3 blades
Kaplan turbine runner 200 mm, 3 blades (4 m head)
Model designed and computed with the Heliciel software. Design point: 4 m net head, 0.2089 m³/s flow, 1856.9 rpm (hydraulic power 8.2 kW). Specific speed from the turbine selection chart (Ns 995 at 4 m head), diameter and hub from the Kaplan statistics; runner balanced on the head by Heliciel's hydro turbine study.
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 | 200 mm |
|---|---|
| Number of blades | 3 |
| Hub diameter | 76 mm |
| Net head | 4 m |
| Flow | 0.2089 m³/s |
| Specific speed Ns (turbine selection chart) | 995 |
| Head taken by the runner | 2.82 m |
| Losses in wicket gate, bend and draft tube | 1.17 m |
| Wicket gate | 10 guide vanes, b0 140 mm |
| Design speed | 1857 rpm |
| Fluid speed at design point | 7.77 m/s |
| Axial load | 702.30 N |
| Torque | 28.629 N·m |
| Shaft power | 5567 W |
| Power coefficient Cp | 0.90 |
| Blade shape | classic |
| Angles of attack | smoothed (5° along the whole blade) |
| Bore | 15 mm |
| Hub length | 71 mm |
| Blade thickness | 2.1 mm at the root, 2.8 mm at mid-radius (r = 50.4 mm), 5.5 mm at the tip |
| Strength at design point | blade root fillet to be sized for strength |
| Direction of rotation | right-hand |
| Files included | STL, STEP, HLC |
| Reference | K-200-3p-H4 |
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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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