The propellers of a C-130J Super Hercules military transport aircraft
The propeller speed reduction unit of a Rolls-Royce R engine
A decorated Japanese taketombo bamboo-copter
Simple spur gear reduction
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

This allows the use of small displacement internal combustion engines to turn aircraft propellers within an efficient speed range.

- Propeller speed reduction unit

The propeller attaches to the power source's driveshaft either directly or through reduction gearing.

- Propeller (aeronautics)
The propellers of a C-130J Super Hercules military transport aircraft

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