The propellers of a C-130J Super Hercules military transport aircraft
A propeller blade in feathered position
A decorated Japanese taketombo bamboo-copter
Decommissioned wind turbines of the Kama'oa Wind Farm in Ka Lae/South Point, Hawaii awaiting removal, with rotors stopped and blades feathered.
Leonardo's aerial screw
Prototype created by Mikhail Lomonosov, 1754
A 6-bladed Hamilton Standard 568F propeller on an ATR 72 short-haul airliner
A sailor checks the propeller of a Landing Craft Air Cushion hovercraft
Cut-away view of a Hamilton Standard propeller. This type of constant-speed propeller was used on many American fighters, bombers and transport aircraft of World War II
Feathered propeller on the outboard TP400 turboprop of an Airbus A400M
Counter-rotating propellers

The blade pitch may be fixed, manually variable to a few set positions, or of the automatically variable "constant-speed" type.

- Propeller (aeronautics)

In aeronautics, blade pitch refers to the angle of the blades of an aircraft propeller or helicopter rotor.

- Blade pitch
The propellers of a C-130J Super Hercules military transport aircraft

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One of a C-130J Super Hercules's six-bladed Dowty Rotol R391 composite controllable- and reversible-pitch propellers.

Variable-pitch propeller (aeronautics)

One of a C-130J Super Hercules's six-bladed Dowty Rotol R391 composite controllable- and reversible-pitch propellers.
A hydraulic constant-speed propeller on a Rotax 912S engine in a Dyn'Aéro MCR01 Microlight aircraft.
Cutaway constant-speed propeller hub
Pitch-change forces on a constant speed propeller.
Propeller governor PCU5000, made by Jihostroj a.s. company, fitted to an American Champion aircraft
A Hamilton Standard variable-pitch propeller on a 1943 model Stinson V77 Reliant

In aeronautics, a variable-pitch propeller is a type of propeller (airscrew) with blades that can be rotated around their long axis to change the blade pitch.