FPV drones · 3.5-inch micro
micro drone propeller 4 in, 3 blades
Model designed and computed with the Heliciel software. Design point: 15,090 rpm in hover, 50 % throttle on a T-HOBBY F1404 2,900 KV motor on 4S with a GF 4023-3 propeller.
The pack contains the complete propeller as a full-definition STL, STEP surfaces (complete propeller and one blade), the Heliciel .hlc project and the computation records. It also contains the same propeller turning the other way (STL and STEP).
Characteristics computed by Heliciel
| Diameter | 102 mm |
|---|---|
| Number of blades | 3 |
| Hub diameter | 15.8 mm |
| Pitch at 0.7 R | 61 mm (2.4 in) |
| Design speed | 15090 rpm |
| Fluid speed at design point | 0 m/s |
| Thrust | 1.42 N |
| Torque | 0.010 N·m |
| Shaft power | 16 W |
| Blade shape | classic |
| Angles of attack | smoothed (5° along the whole blade) |
| Bore | 5 mm |
| Hub length | 8 mm |
| Blade thickness | 1.3 mm at the root, 1.4 mm at mid-radius (r = 25.1 mm), 0.3 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, STEP, HLC |
| Reference | B-102-3p |
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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Model designed and computed with the Heliciel software. Design point: 15,090 rpm in hover, 50 % throttle on a T-HOBBY F1404 2,900 KV motor on 4S with a GF 4023-3 propeller.
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- 15.8 mm
micro drone propeller 4 in, 3 blades (20° skew)
Model designed and computed with the Heliciel software. Design point: 15,090 rpm in hover, 50 % throttle on a T-HOBBY F1404 2,900 KV motor on 4S with a GF 4023-3 propeller. 20° skew: shape sought for noise (not measured).
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- Hub diameter
- 15.8 mm
micro drone propeller 4 in, 3 blades (winglets (6 % of radius, canted at 75°))
Model designed and computed with the Heliciel software. Design point: 15,090 rpm in hover, 50 % throttle on a T-HOBBY F1404 2,900 KV motor on 4S with a GF 4023-3 propeller. 6 % radius winglets: their effect on tip losses follows Heliciel's model, not validated by testing.
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- 102 mm
- Number of blades
- 3
- Hub diameter
- 15.8 mm
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