CntwRU 1219S - 31mm 3-blade

The 1219S 31mm 3-blade propeller series is a high-response aerodynamic component designed for ultra-light Tinywhoop platforms and high-RPM micropropulsion systems. Designed to balance extreme mass reduction with responsive aerodynamic features, these accessories provide accurate physical feedback through hardware-level alignment. Technical specifications: Model: 1219S Number of sheets: 3 sheets Material: High Tenacity Polycarbonate (PC) Unit weight: approximately 0.2 g. DIMENSIONS - 0.8mm/1mm arbor, 31mm propeller disc diameter, 1.9" pitch, 3.4mm hub thickness Compatible Motors: Class 0702 29000KV Pre-flight inspection: Operational consistency: Always check that the propeller rotation (CW/CCW) and shaft diameter match the motor output before installation. As an ultralight consumable, replace propellers immediately if they show signs of structural fatigue, whitening, or physical chipping. Make sure the fittings are securely seated to maintain vibration-free performance. Package List: Reinforced aerodynamic propeller x 8 (4CW, 4CCW)