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RC airplane, paramotor and ultralight propellers

STL and STEP files of aircraft propellers: radio-controlled airplanes, paramotors and three-axis ultralights, up to 1.75 m in diameter, with 2 to 7 blades, skew, rake, winglets, rounded tips or square blades.

Each propeller is computed by Heliciel (blade element momentum theory) at the speed and flight speed of a real aircraft of its class. Paramotor, ultralight and aircraft propellers are study, scale-model or machining files: they are not suitable for flight on a manned aircraft.

To create your own custom model and test its performance: Heliciel software

RC airplanes

8 models

RC airplane propeller 8 in, 2 blades

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 12,000 rpm at 15 m/s.

Diameter
203 mm
Number of blades
2
Hub diameter
21.4 mm
€30.00 incl. VATBuy

RC airplane propeller 8 in, 5 blades, rounded tips and 30° skew

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 12,000 rpm at 15 m/s. Five blades with rounded tips and 30° skew, at the same design point as the two-blade version.

Diameter
203 mm
Number of blades
5
Hub diameter
21.4 mm
€30.00 incl. VATBuy

RC airplane propeller 10 in, 2 blades (10x8)

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 1000KV motor on 3S, loaded speed equal to 80 % of the no-load speed.

Diameter
254 mm
Number of blades
2
Hub diameter
26.6 mm
€30.00 incl. VATBuy

RC airplane propeller 10 in, 2 blades (8° rake)

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 8,880 rpm at 15 m/s (1000 KV motor on 3S). 8° rake.

Diameter
254 mm
Number of blades
2
Hub diameter
25.4 mm
€30.00 incl. VATBuy

RC airplane propeller 10 in, 3 blades with rounded tips

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 8,000 rpm at 15 m/s. Three blades with rounded tips.

Diameter
254 mm
Number of blades
3
Hub diameter
25.4 mm
€30.00 incl. VATBuy

RC airplane propeller 10 in, 7 blades (rounded tips and 20° skew)

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 8,880 rpm at 15 m/s (1000 KV motor on 3S). Rounded tips and 20° skew. Concept computed by Heliciel: no production propeller has this blade count at this diameter.

Diameter
254 mm
Number of blades
7
Hub diameter
25.4 mm
€30.00 incl. VATBuy

RC airplane propeller 12 in, 3 scimitar blades (25° skew)

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 7,000 rpm at 18 m/s. Scimitar blades (25° skew).

Diameter
305 mm
Number of blades
3
Hub diameter
32 mm
€30.00 incl. VATBuy

RC airplane propeller 12 in, 4 blades with winglets

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 7,000 rpm at 18 m/s. Winglets of 6 % of the radius, canted at 75°; their effect on tip losses is estimated by Heliciel's model.

Diameter
305 mm
Number of blades
4
Hub diameter
32 mm
€30.00 incl. VATBuy

Paramotors

4 models

Paramotor propeller 1.30 m, 2 blades

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,718 rpm at 40 km/h (185 cc paramotor engine at 7,800 rpm, 2.87 reduction). Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1300 mm
Number of blades
2
Hub diameter
130 mm
€30.00 incl. VATBuy

Paramotor propeller 1.30 m, 3 blades

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,718 rpm at 40 km/h (185 cc paramotor engine at 7,800 rpm, 2.87 reduction). Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1300 mm
Number of blades
3
Hub diameter
130 mm
€30.00 incl. VATBuy

Paramotor propeller 1.30 m, 3 blades (rounded tips)

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,718 rpm at 40 km/h (185 cc paramotor engine at 7,800 rpm, 2.87 reduction). Rounded tips. Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1300 mm
Number of blades
3
Hub diameter
130 mm
€30.00 incl. VATBuy

Paramotor propeller 1.30 m, 3 blades (20° skew)

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,718 rpm at 40 km/h (185 cc paramotor engine at 7,800 rpm, 2.87 reduction). 20° skew. Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1300 mm
Number of blades
3
Hub diameter
130 mm
€30.00 incl. VATBuy

Ultralights

5 models

Ultralight aircraft propeller 1.70 m, 2 blades

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,387 rpm at 200 km/h (Rotax 912 at 5,800 rpm, 2.43 reduction). Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1700 mm
Number of blades
2
Hub diameter
170 mm
€30.00 incl. VATBuy

Ultralight aircraft propeller 1.70 m, 3 blades

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,387 rpm at 200 km/h (Rotax 912 at 5,800 rpm, 2.43 reduction). Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1700 mm
Number of blades
3
Hub diameter
170 mm
€30.00 incl. VATBuy

Ultralight aircraft propeller 1.70 m, 3 blades (square constant-chord blade (heavy load))

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,387 rpm at 200 km/h (Rotax 912 at 5,800 rpm, 2.43 reduction). Square constant-chord blade (heavy load). Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1700 mm
Number of blades
3
Hub diameter
170 mm
€30.00 incl. VATBuy

Ultralight aircraft propeller 1.70 m, 3 blades (winglets (6 % of radius, canted at 75°))

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,387 rpm at 200 km/h (Rotax 912 at 5,800 rpm, 2.43 reduction). Winglets (6 % of radius, canted at 75°). Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1700 mm
Number of blades
3
Hub diameter
170 mm
€30.00 incl. VATBuy

Fast ultralight propeller 1.75 m, 3 blades (8° rake)

Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2,387 rpm at 225 km/h (Rotax 912 S, 2.43 reduction). 8° rake. Study, scale-model or machining file: not suitable for flight on a manned aircraft.

Diameter
1750 mm
Number of blades
3
Hub diameter
175 mm
€30.00 incl. VATBuy

Frequently asked questions

Can I use these propellers on a paramotor or an ultralight?

No. They are study, scale-model, display or machining-base files for which you remain responsible. A propeller for a manned aircraft must be certified or qualified by its manufacturer.

What are the STEP files for?

The STEP surfaces open in SolidWorks, CATIA, Fusion or FreeCAD: geometry reuse, digital mock-up, preparation of CNC machining or of a mould.

How is the design point chosen?

Speed and flight speed come from real aircraft: 1000 KV RC motor, paramotor engine reduction, Rotax 912 ultralights. The product page states them for each model.

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What you receive

A .zip archive: full-definition STL, STEP, Heliciel .hlc project and description sheet. The download link is also sent by e-mail.

Price and licence

Prices include 20 % French VAT. Personal use: resale and redistribution of the files are forbidden.

Safety

A printed propeller must be checked before use, at a speed suited to its material. These models must never be fitted to a manned aircraft.

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