HQProp Ultralight Whoop Prop 31mm 1.2x1.1x3 (2CW+2CCW) 1mm Shaft

HQProp Ultralight tri-blade props for 65 mm-class tiny whoops on 1 mm motor shafts. At 31 mm (1.22 inch) they are sized for the smallest ducted whoops, where every fraction of a gram counts towards flight time and throttle response.

Key features

• About 0.16 g per prop; the ultralight design cuts rotating mass for quicker motor response on 1S builds
• 1.1-inch pitch with three blades for grip inside a whoop duct
• Polycarbonate blades flex rather than shatter on wall and floor strikes
• 1 mm press-fit bore with a 4 mm hub
• Choose clear, grey or pink to tell quads apart or mark front and rear

Specifications

• Diameter: 31 mm (1.2 in)
• Pitch: 1.1 in
• Blades: 3
• Bore: 1 mm
• Hub: 4 mm
• Weight: 0.16 g per prop
• Material: Polycarbonate
• Quantity: 4 props (2 CW + 2 CCW)

31 mm props suit 65 mm whoop frames running 1 mm-shaft motors. Check that your ducts are sized for 31 mm props: a 75 mm whoop's ducts are made for 40 mm props and leave a large tip gap around these.