FPV drones · 3.5-inch micro
micro drone propeller 3.5 in, 3 blades (serrated trailing edge)
Model designed and computed with the Heliciel software. Design point: 16,954 rpm in hover, 50 % throttle on a T-HOBBY F1404 2,900 KV motor on 4S with an HQ 3520-3 propeller. Serrated trailing edge: the stated performance is that of the smooth blade (serrations are not computed); pack without STEP file. Tooth tips too thin for filament (FDM) printing: print in resin (SLA).
The pack contains the complete propeller as a full-definition STL, 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 | 90 mm |
|---|---|
| Number of blades | 3 |
| Hub diameter | 9 mm |
| Pitch at 0.7 R | 52 mm (2.0 in) |
| Design speed | 16954 rpm |
| Fluid speed at design point | 0 m/s |
| Thrust | 1.00 N |
| Torque | 0.006 N·m |
| Shaft power | 11 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 (5° along the whole blade) |
| Bore | 5 mm |
| Hub length | 8 mm |
| Blade thickness | 1.1 mm at the root, 1.2 mm at mid-radius (r = 20.7 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, HLC |
| Reference | B-090-3p-Z |
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.
Similar models
cinewhoop drone propeller 3 in, 3 blades
Model designed and computed with the Heliciel software. Design point: 19,767 rpm in hover, 50 % throttle on a 1404 3800 KV motor on 4S.
- Diameter
- 76 mm
- Number of blades
- 3
- Hub diameter
- 8 mm
cinewhoop drone propeller 3 in, 3 blades (winglets (6 % of radius, canted at 75°))
Model designed and computed with the Heliciel software. Design point: 19,767 rpm in hover, 50 % throttle on a 1404 3800 KV motor on 4S. Winglets (6 % of radius, canted at 75°).
- Diameter
- 76 mm
- Number of blades
- 3
- Hub diameter
- 8 mm
cinewhoop drone propeller 3 in, 5 blades (ducted)
Model designed and computed with the Heliciel software. Design point: 19,767 rpm in hover, 50 % throttle on a 1404 3800 KV motor on 4S. Computed inside a duct (blade thrust only); pack with the blade alone and a welded-duct version, geometry only.
- Diameter
- 76 mm
- Number of blades
- 5
- Hub diameter
- 8 mm
cinewhoop drone propeller 3 in, 5 blades (rounded tips and 20° skew)
Model designed and computed with the Heliciel software. Design point: 19,767 rpm in hover, 50 % throttle on a 1404 3800 KV motor on 4S. Rounded tips and 20° skew.
- Diameter
- 76 mm
- Number of blades
- 5
- Hub diameter
- 8 mm
FPV freestyle drone propeller 5 in, 2 blades
Model designed and computed with the Heliciel software. Design point: 18,627 rpm in hover, 50 % throttle on a 2207.5 1950 KV motor on 6S.
- Diameter
- 127 mm
- Number of blades
- 2
- Hub diameter
- 12.8 mm
FPV freestyle drone propeller 5 in, 3 blades (square constant-chord blade (heavy load))
Model designed and computed with the Heliciel software. Design point: 18,627 rpm in hover, 50 % throttle on a 2207.5 1950 KV motor on 6S. Square constant-chord blade (heavy load).
- Diameter
- 127 mm
- Number of blades
- 3
- Hub diameter
- 12.8 mm
Other categories : Aircraft, paramotors · Boats · Wind turbines · Tidal turbines · Kaplan turbines · Fans · Water pumps