HQProp 7x5.5x3 Grey Propellers (2CW+2CCW) - Polycarbonate

HQProp 7x5.5x3 propellers are a rigid tri-blade propeller set in grey polycarbonate, sized for 7-inch long-range and cinelifter builds that need strong thrust and top-end speed.

Key features

• Three-blade design trades a little efficiency for more consistent thrust and less prop wash noise than a two-blade prop of the same size.
• 7-inch diameter with a 5.5-inch pitch suits long-range and cinelifter motors running on 6S power.
• Polycarbonate construction resists impact cracking better than standard ABS or nylon props.
• 13mm hub diameter fits the common bullet-nut and standard prop-saver mounting used on most 7-inch motors.
• Sold as a matched set of clockwise and counter-clockwise propellers, ready to balance the aircraft's rotor thrust.

Specifications

• Size: 7 x 5.5 inch
• Blades: 3
• Hub diameter: 13mm
• Hub thickness: 6.8 mm
• Shaft hole: 5 mm (M5), no adaptor rings
• Weight: 10g per propeller
• Material: Polycarbonate
• Pack contents: 2 CW + 2 CCW

Balance each propeller before a long-range flight; even small manufacturing variance shows up as vibration at cruise RPM on a 7-inch prop.