
FPV drones · 13-inch X-class
X-class drone propeller 13 in, 2 blades (serrated trailing edge)
Model designed and computed with the Heliciel software. Design point: 6,490 rpm in hover, 50 % throttle on a 340-350 KV motor at 46-48 V. Serrated trailing edge: the stated performance is that of the smooth blade (serrations are not computed); pack without STEP file.
The pack contains the complete propeller as a full-definition STL with root fillet, the Heliciel .hlc project and the computation records. It also contains the same propeller turning the other way (STL and STEP). Serrated trailing edge: geometry only, no STEP; the stated performance and strength are computed on the smooth blade.
Characteristics computed by Heliciel
| Diameter | 330 mm |
|---|---|
| Number of blades | 2 |
| Hub diameter | 49.6 mm |
| Pitch at 0.7 R | 151 mm (6.0 in) |
| Design speed | 6490 rpm |
| Fluid speed at design point | 0 m/s |
| Thrust | 17.77 N |
| Torque | 0.301 N·m |
| Shaft power | 205 W |
| Blade shape | serrated trailing edge (2 tip elements, 4 teeth per element, 20 % of chord peak to peak ; geometry only) |
| Angles of attack | smoothed (4° along the whole blade) |
| Bore | 6 mm |
| Hub length | 25 mm |
| Blade thickness | 4.2 mm at the root, 4.5 mm at mid-radius (r = 80.9 mm), 1.0 mm at the tip |
| Material used in the computation | 3D-printing PETG |
| Strength at design point | yes |
| Direction of rotation | right-hand |
| Files included | STL, HLC |
| Reference | B-330-2p-Z |

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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.
Similar models
X-class drone propeller 13 in, 2 blades
Model designed and computed with the Heliciel software. Design point: 6,490 rpm in hover, 50 % throttle on a 340-350 KV motor at 46-48 V.
- Diameter
- 330 mm
- Number of blades
- 2
- Hub diameter
- 49.6 mm
X-class drone propeller 13 in, 2 blades (20° skew)
Model designed and computed with the Heliciel software. Design point: 6,490 rpm in hover, 50 % throttle on a 340-350 KV motor at 46-48 V. 20° skew: shape sought for noise (not measured).
- Diameter
- 330 mm
- Number of blades
- 2
- Hub diameter
- 49.6 mm
X-class drone propeller 13 in, 2 blades (winglets (6 % of radius, canted at 75°))
Model designed and computed with the Heliciel software. Design point: 6,490 rpm in hover, 50 % throttle on a 340-350 KV motor at 46-48 V. Winglets (6 % of radius, canted at 75°).
- Diameter
- 330 mm
- Number of blades
- 2
- Hub diameter
- 49.6 mm
X-class drone propeller 13 in, 3 blades
Model designed and computed with the Heliciel software. Design point: 6,490 rpm in hover, 50 % throttle on a 340-350 KV motor at 46-48 V.
- Diameter
- 330 mm
- Number of blades
- 3
- Hub diameter
- 49.6 mm
X-class drone propeller 13 in, 3 blades (rounded tips and 20° skew)
Model designed and computed with the Heliciel software. Design point: 6,490 rpm in hover, 50 % throttle on a 340-350 KV motor at 46-48 V. Rounded tips and 20° skew.
- Diameter
- 330 mm
- Number of blades
- 3
- Hub diameter
- 49.6 mm
X-class drone propeller 13 in, 3 blades (20° skew)
Model designed and computed with the Heliciel software. Design point: 6,490 rpm in hover, 50 % throttle on a 340-350 KV motor at 46-48 V. 20° skew: shape sought for noise (not measured).
- Diameter
- 330 mm
- Number of blades
- 3
- Hub diameter
- 49.6 mm
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