Master Airscrew MR Series 9x4.5 Propeller (CCW), Black
by Master Airscrew

Master Airscrew 9 x 4.5 MR Propeller (CCW) Black

Optimize your drone's flight efficiency with the Master Airscrew 9 x 4.5 MR Propeller (CCW). Bridging the gap between 8-inch and 10-inch options, this 9-inch propeller is the "Goldilocks" size for many 330mm to 450mm multi-rotor frames, offering increased thrust over smaller props without the higher current draw of larger ones.

Part of the premium MR Series, this propeller is specifically engineered for VTOL (Vertical Take-Off and Landing) applications. Its advanced airfoil design delivers a superior lift-to-drag ratio, providing smoother hover stability and longer flight times compared to standard "slow fly" props. Constructed from Glass Fiber Reinforced Composite, it is rigid enough to resist deformation during aggressive flight maneuvers while remaining durable enough for daily use.

This specific unit is a Counter-Clockwise (CCW) rotation propeller, intended for use as a standard "tractor" prop (typically front-right/rear-left on a quadcopter). It features a 6mm center hub that fits many larger motors directly, and can easily be adapted to standard 5mm shafts using reducer rings (sold separately).

Key Features:

• Optimized 9-Inch Size: Perfect balance of thrust and agility for mid-sized multi-rotors.

• Factory Balanced: Precision balanced during manufacturing to minimize vibrations and "jello" in video footage.

• High-Strength Composite: Glass Fiber Reinforced material prevents flexing under load for consistent performance.

• Efficient Airfoil: Designed specifically for multi-rotor dynamics to maximize flight time.

• Standard Fitment: 6mm hub bore accommodates various motor shafts (adapter rings recommended for 5mm shafts).

Specifications

• Diameter: 9" (228.6mm)

• Pitch: 4.5" (114.3mm)

• Rotation: Counter-Clockwise (CCW) / Tractor

• Hub Thickness: 8mm

• Shaft Diameter: 6mm (adjustable via adapter rings)

• Weight: 0.34 oz / 9.7 g

• Material: Glass Fiber Reinforced Composite

• Color: Black

What's Included

• 1x Master Airscrew 9 x 4.5 MR Propeller (CCW) Black