Product overview
The Rayi RAYI 22x9 CD Folding PROP is a propulsion component for multi-rotor UAVs, including heavy-lift, mapping, photography and inspection aircraft. Its fixed-pitch, 22-inch-diameter blades have a 9-inch pitch and combine T700 carbon fiber with epoxy resin. The folding mechanism reduces storage and transport space. The supplied set comprises two clockwise and two counterclockwise propellers, each listed at 45g. Weight descriptions are inconsistent: approximately 45g per propeller is also specified, while another description gives 45g per pair. The supplied configuration is a propeller set.
Integration is governed by a thrust limitation of ≤5000g and an optimum RPM specification of ≤4200 r/min. The recommended quadcopter maximum takeoff weight is ≤20kg under the stated 2× safety redundancy description. The 23 V performance table extends to 5066g at 4229 rpm, beyond those limits. Operating temperature is -40°C to +60°C; storage temperature is -10°C to +40°C, with an additional recommendation of 0–40°C below 80% humidity and avoidance of hostile chemical environments. Motor installation requires medium-strength or stronger anaerobic threadlocker. Propellers require inspection before flight and replacement if faulty.
Specifications
| Specification | Value & conditions |
|---|---|
| Brand | Rayi |
| Model | RAYI 22x9 CD Folding PROP |
| Product name | 22x9 inch Ultra light carbon fiber folding CW/CCW Propeller |
| Diameter | 22 inches |
| Pitch | 9 inches |
| Weight | ≈45g |
| Weight descriptions | Weight descriptions conflict: 45g per pair here, versus approximately 45g per propeller and 45g each in the supplied configuration. |
| Thrust limitation | ≤5000g |
| Optimum RPM | ≤4200 r/min |
| Operating temperature | -40°C to +60°C |
| Storage temperature | -10°C to +40°C |
| Lightweight construction | Lightweight construction intended to enhance motor responsiveness and flight dynamics.45g per propeller. |
| Material | T700 carbon fiber with premium epoxy resin |
| Applicable aircraft | Multi-rotor |
| Architecture | Fixed-pitch propellers with a folding mechanism. |
| Supplied configuration | 2 × 22x9 inch clockwise carbon fiber propellers and 2 × 22x9 inch counterclockwise carbon fiber propellers, listed at 45g each. |
| Recommended maximum takeoff weight | ≤20kg, with stated 2× safety redundancy.Quadcopter configuration; single-axis safe thrust ≤5000g. |
| Recommended ambient storage temperature | 0–40°CStorage; relative humidity less than 80%. |
| Environmental exclusions | Keep away from hostile environments, including H2O, SO2, NO2, Cl2, organosilicon, cyanogroup and phenol.Storage. |
| Threadlocking requirement | Use medium-strength or stronger anaerobic threadlocker.Installation onto motors. |
| Inspection and replacement | Inspect propellers and replace any found faulty.Before flight. |
| Static balance | R50% imbalance ≤0.05g |
| Dynamic balance | G6.0 |
| Performance table | Throttle (%) | Current (A) | Thrust (g) | Torque (N·m) | Speed (rpm) | Shaft power (W) | Shaft thrust efficiency (g/W) 30 | 1.73 | 642 | 0.204 | 1594 | 34.05 | 18.85 35 | 2.63 | 902 | 0.268 | 1831 | 51.38 | 17.56 40 | 3.94 | 1197 | 0.348 | 2110 | 76.88 | 15.57 45 | 5.2 | 1472 | 0.417 | 2319 | 101.25 | 14.54 50 | 6.73 | 1782 | 0.491 | 2523 | 129.7 | 13.74 55 | 8.56 | 2083 | 0.573 | 2730 | 163.78 | 12.72 60 | 10.72 | 2424 | 0.663 | 2935 | 203.74 | 11.9 65 | 13.19 | 2764 | 0.756 | 3143 | 248.78 | 11.11 70 | 16.12 | 3148 | 0.853 | 3336 | 297.94 | 10.57 75 | 19.2 | 3526 | 0.949 | 3514 | 349.15 | 10.1 80 | 22.51 | 3845 | 1.04 | 3675 | 400.16 | 9.61 85 | 25.83 | 4174 | 1.125 | 3824 | 450.42 | 9.27 90 | 29.58 | 4504 | 1.213 | 3964 | 503.43 | 8.95 95 | 33.27 | 4796 | 1.288 | 4099 | 552.76 | 8.68 100 | 37.19 | 5066 | 1.358 | 4229 | 601.29 | 8.4223 V throughout; throttle settings 30–100%. |
