VZ20*8.2

VZ SERIES-VTOL PROPELLERS

Break through the performance limitations of traditional multi-rotor propellers. VZ series propellers deliver superior power, durability, and lightweight design for VTOL applications.

What Does a VTOL Propeller Need?

• High Strength, High Stiffness & Lightweight Design
  • High Strength: Withstands immense centrifugal loads and maneuver-induced alternating loads at high RPM, preventing structural failure.
  • High Stiffness: Ensures safe blade-tip clearance in compact layouts, suppresses aeroelastic deformation, and prevents flutter.
  • Lightweight Design: Reduces the moment of inertia to achieve rapid thrust response and higher attitude control bandwidth for the flight control system.
• Superior Aerodynamic Design
  • Vertical Takeoff & Landing Phase: Requires high thrust and power, demanding maximum lift output from the propeller disk within a limited blade area.
  • Cruise Phase: When the propeller stops rotating, it is necessary to minimize profile drag to reduce power consumption, achieving "stealthy" low-drag efficiency.
• Transition Stability: Resisting Complex Flow Field Interference
  • Unsteady Flow Fields at High Angle of Attack: The aircraft operates at high angles of attack and low speeds within an extremely complex flow environment.
  • Asymmetric Airflow: Significant angle between incoming flow and the rotation axis causes asymmetric airflow entering the propeller disc.
  • Severe Periodic Variations: Local forces on the blade fluctuate drastically per rotation, inducing flutter and causing significant thrust fluctuation.

To address the challenges of traditional propellers in VTOL (Vertical Takeoff and Landing mode) applications, we introduce the VZ Series Propellers.

Technical Features of the VZ Series Propellers

• Bending & Torsion Resistant Layup Design: Optimized fiber orientation and ratio maximize strength and stiffness.
• Prepreg Compression Molding for Integrated Forming: Product porosity below 1%, ensuring stable and reliable quality.
• PMI Foam Core: Lightweight, high-strength core material effectively increases stiffness while controlling total weight.
• 30% Flexural Strength: Significantly enhanced impact resistance and deformation resistance for greater durability in complex operating conditions.
• 20% Torsional Stiffness: Optimized power transmission efficiency reduces energy loss during operation.
• Blade Root Optimization: Safety Redundancy Design: The blade root thickness is optimized to provide structural redundancy while reducing loads on the connecting bolts.

V30 Propeller

VZ30 Propeller

Aerodynamic Priority: Engineered for High VTOL Thrust

• Dedicated High Lift-to-Drag Ratio Airfoil: Optimized for VTOL conditions to enhance maximum lift coefficient.
• Low-Drag Cruise Blade Shape: Improved aerodynamic blade boundaries reduce cruise drag.
• Specialized Blade Tip: Optimized tip design weakens vortex strength and enhances flight quality.

Custom VTOL Propeller Service: 10 to 100 Inches

• Supports precise matching with various pitch specifications and motors. Full in-house R&D ensures stable and controllable quality.
• Aerodynamic/Structural Design
• Mold Manufacturing
• Composite Molding
• Testing & Validation

① The appearance diagrams and product renderings in this document are for reference only; the actual product shall prevail.

② Data regarding improvements in flexural strength and torsional stiffness are derived from comparative testing between the VZ Series propeller and the G Series propellers.

③ Data regarding the reduction in bolt shear load is sourced from simulation comparisons between the installation bolts for the VZ Series propellers and those for the V Series propellers.

④ The test data presented above were obtained under specific conditions, using equipment within our company's laboratory. Actual data and parameters may vary slightly depending on the test environment, platform, software, and other factors.

Detail information

Specifications

• Diameter (Inch): 20 (508mm)
• Material: Resin-based Carbon Fiber Composite + PMI Foam Core
• Pitch (Inch): 8.2 (208.3mm)
• Surface Treatment: Matte
• Average Single Blade Weight (g): 38
• Type: One-Piece Straight Propeller
• Recommended Max RPM (RPM): 7300
• Application: VTOL Fixed-Wing UAVs, Multicopter Mode
• Recommended Max Thrust (kg): 11.2
• Connections & Dimensions: Flange Mount, Ø6 mm Center Hole, Ø12 mm Bolt Circle, with 2x Ø3 mm Mounting Holes
• Limit RPM (RPM): 8000
• Limit Thrust (kg): 14

Test Data

• Ambient Temperature: 22 °C
• Altitude: 25 m

Important Notes

• Data may vary under different testing standards due to factors such as equipment, methodology, and environment.
• Ensure compatibility between the propeller mounting holes and motors. Refer to the drawing above for details.

Packing List

Before using this product, please check if all the items listed above are included in the packaging. If there are any missing items, please refer to the product documentation.