Jiyuan Rayi Innovation Science Technology Co., Ltd Jiyuan Rayi Innovation Science Technology Co., Ltd

Electric Fixed Wing & VTOL Propellers for UAV Cruise Motors

RAYI supplies carbon fiber electric fixed wing propellers and VTOL propellers from 15×10 to 23×16 for battery-powered fixed-wing UAVs, composite-wing aircraft and electric VTOL cruise propulsion systems.

Current models cover different combinations of diameter, pitch, propeller weight, operating RPM and thrust capacity. For an existing propulsion system, select the closest standard model according to your motor KV, battery voltage, motor power, operating RPM, required thrust and target cruise speed. Custom diameter, pitch and mounting specifications are also available for OEM UAV projects.


Electric Fixed Wing Propeller Range

ModelDiameterPitchNet WeightSafe RPMSafe Thrust
15×1015"10"Approx. 30 g≤8500 rpm≤4.2 kg
16×1016"10"Approx. 34 g≤8500 rpm≤5.2 kg
19×1219"12"Approx. 45 g≤8000 rpm≤11 kg
20×1320"13"Approx. 60 g≤7500 rpm≤12.5 kg
21×1321"13"Approx. 62 g≤7500 rpm≤14 kg
23×1623"16"Contact RAYIContact RAYIContact RAYI

Important: Safe RPM and safe thrust are propeller limits, not recommended operating points for every aircraft. Final selection must also remain within the motor, ESC and battery limits.


Which Propeller Range Fits Your UAV?

You do not need to compare every specification before contacting us. Start with the propeller size recommended by your motor manufacturer or the diameter × pitch already used on your aircraft.

15×10–16×10

These are the smaller sizes in the current electric fixed-wing range and are the first models to evaluate when your motor or existing aircraft is designed around a 15–16 inch propeller with 10-inch pitch.

View the 15×10 and 16×10 specifications for detailed operating limits.

19×12

The 19×12 Carbon Fiber Electric Fixed-Wing Propeller provides an intermediate size between the smaller 15–16 inch products and the larger 20–23 inch range.

It is a useful starting point when your existing propulsion design specifies approximately a 19-inch diameter and 12-inch pitch.

20×13–21×13

For electric cruise systems designed around a larger propeller envelope, compare the 20×13 and 21×13.

Both use a 13-inch pitch, allowing buyers to evaluate the appropriate diameter according to motor capability, available airframe clearance and required thrust.

23×16

The 23×16 Carbon Fiber Electric Fixed-Wing Propeller is currently the largest diameter × pitch combination listed in this electric series.

For larger electric fixed-wing or VTOL projects, send your motor and aircraft parameters so compatibility can be checked before selection.


How to Select an Electric Fixed Wing Propeller

For electric propulsion, the propeller should be matched to the complete motor + ESC + battery system rather than selected by UAV weight or diameter alone.

For model recommendation, provide:

  • Motor model and KV

  • Battery voltage

  • Continuous motor power

  • ESC rating

  • Current propeller diameter × pitch

  • Aircraft MTOW

  • Target cruise speed

  • Required thrust, if known

  • Maximum available propeller diameter

If your motor datasheet already specifies a recommended propeller range, use the nearest RAYI standard model as the starting point.

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Selection by Project Requirement

For Smaller Electric Fixed-Wing UAVs

Start by comparing the 15×10 and 16×10 models where the propulsion system requires a relatively compact propeller and the motor operates within the published ≤8500 rpm propeller limit.

For Higher-Thrust Electric Cruise Systems

Compare the 19×12, 20×13 and 21×13 according to motor capability and required thrust. These models progressively increase diameter and/or pitch, but also have lower published safe RPM limits than the 15×10 and 16×10.

For Larger or Non-Standard VTOL Projects

If the 23×16 does not match the required motor or airframe envelope, RAYI can evaluate a customized diameter, pitch or mounting configuration rather than forcing the aircraft to use a catalog size.


VTOL Installation Checks

For a VTOL cruise propeller, model selection also depends on how the forward-flight propulsion unit is installed.

Please confirm:

  • Tractor or pusher installation

  • Direction of rotation

  • Maximum available propeller diameter

  • Clearance from fuselage, boom and landing structure

  • Motor shaft and hub dimensions

  • Propeller position during vertical take-off and landing

  • Whether propeller stop-position control is required

  • Cruise motor operating RPM

These details are particularly important when integrating the propeller into a composite-wing or VTOL aircraft where the cruise propulsion system interacts with the airframe during transition.


Standard Model or Custom Propeller?

Choose a standard electric fixed wing propeller when an available 15×10, 16×10, 19×12, 20×13, 21×13 or 23×16 model already matches your motor and airframe requirements.

Consider a custom solution when:

  • Standard diameter is too large or too small.

  • The required pitch is not available.

  • Existing propellers draw excessive motor current.

  • Cruise RPM or target speed cannot be achieved.

  • The motor uses a special hub or mounting interface.

  • Weight needs to be optimized for a specific UAV.

  • An OEM UAV project requires a proprietary specification.

RAYI supports OEM and ODM propeller development, including custom diameter, pitch, hub dimensions and other project-specific requirements.


Carbon Fiber Construction

The current electric fixed-wing products use carbon fiber composite construction. Individual product pages provide model-specific data such as net weight, safe RPM and safe thrust.

For example, published specifications include:

  • 16×10: approx. 34 g, ≤8500 rpm, ≤5.2 kg safe thrust

  • 20×13: approx. 60 g, ≤7500 rpm, ≤12.5 kg safe thrust

  • 21×13: approx. 62 g, ≤7500 rpm, ≤14 kg safe thrust

Use the individual product page when technical limits are required for propulsion-system evaluation.


Custom Electric Fixed Wing Propellers

If the available 15×10–23×16 products do not match your propulsion system, RAYI supports OEM and ODM electric fixed wing propeller development.

Customization can include:

  • Diameter

  • Pitch

  • Hub bore

  • Mounting dimensions

  • Blade geometry

  • Rotation direction

  • Weight requirements

  • OEM branding and packaging

Custom development is useful when the motor requires a non-standard propeller size, the airframe has a strict diameter limitation or the existing mounting interface cannot use a catalog model.


FAQ

What electric fixed wing propeller sizes does RAYI offer?

The current category includes 15×10, 16×10, 19×12, 20×13, 21×13 and 23×16 carbon fiber propellers.

Which model has the highest published safe thrust?

Among the models with currently published specifications, the 21×13 has the highest listed safe thrust at ≤14 kg.

Can I replace a 19×12 with a 20×13?

Not without checking the motor. The 20×13 increases both diameter and pitch and therefore changes motor loading. Compare motor power, current and operating RPM before replacement.

How do I choose between 20×13 and 21×13?

Both have a 13-inch pitch and published safe RPM of ≤7500 rpm. The 20×13 has a published safe thrust of ≤12.5 kg, while the 21×13 is ≤14 kg. Final selection depends on motor capability, required thrust and available diameter.

Can RAYI match a propeller to my electric motor?

Yes. Send the motor model, KV, battery voltage, power, ESC rating, current propeller and aircraft requirements for evaluation.

Can the diameter, pitch or hub be customized?

Yes. OEM and ODM customization is available when the standard product range does not match the motor or aircraft design.

Can these propellers be used on VTOL aircraft?

Yes. The range is intended for electric fixed-wing and VTOL applications. For VTOL integration, provide the cruise motor parameters, tractor/pusher layout, propeller clearance and mounting requirements.



Not sure which model fits your aircraft?Send us your aircraft, motor, battery and installation parameters. Our team will help evaluate a suitable standard or customized electric fixed-wing propeller.

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