The propellers of a C-130J Super Hercules military transport aircraft
Contra-rotating propellers
A decorated Japanese taketombo bamboo-copter
Contra-rotating propellers on the Rolls-Royce Griffon-powered P-51XR Mustang Precious Metal at the 2014 Reno Air Races
Leonardo's aerial screw
Contra-rotating propellers of a Spitfire Mk XIX
Prototype created by Mikhail Lomonosov, 1754
One of the four contra-rotating propellers on a Tu-95 Russian strategic bomber
A 6-bladed Hamilton Standard 568F propeller on an ATR 72 short-haul airliner
XB-35 Flying Wing showing its quartet of pusher contra-rotating propellers. The option was later discarded due to severe vibration in flight and later changed to traditional single rotating propellers.
A sailor checks the propeller of a Landing Craft Air Cushion hovercraft
Douglas XB-42 Mixmaster
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
General Motors P-75 Eagle
Feathered propeller on the outboard TP400 turboprop of an Airbus A400M
Counter-rotating propellers

Aircraft equipped with contra-rotating propellers, also referred to as CRP, coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston or turboprop engine to drive a pair of coaxial propellers in contra-rotation.

- Contra-rotating propellers

Contra-rotating propellers are used.

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

2 related topics

Alpha

GE T64 turboprop, with the propeller on the left, the gearbox with accessories in the middle, and the gas generator (turbine) on the right

Turboprop

GE T64 turboprop, with the propeller on the left, the gearbox with accessories in the middle, and the gas generator (turbine) on the right
Schematic diagram showing the operation of a turboprop engine
Propulsive efficiency comparison for various gas turbine engine configurations
A Rolls-Royce RB.50 Trent on a test rig at Hucknall, in March 1945
The Kuznetsov NK-12 is still the most powerful turboprop
A military transport aircraft, over 2,500 Lockheed C-130 Hercules have been built
The Beech King Air and Super King Air are the most-delivered turboprop business aircraft, with a combined 7,300 examples as of May 2018

A turboprop engine is a turbine engine that drives an aircraft propeller.

While the Soviet Union had the technology to create the airframe for a jet-powered strategic bomber comparable to Boeing's B-52 Stratofortress, they instead produced the Tupolev Tu-95 Bear, powered with four Kuznetsov NK-12 turboprops, mated to eight contra-rotating propellers (two per nacelle) with supersonic tip speeds to achieve maximum cruise speeds in excess of 575 mph, faster than many of the first jet aircraft and comparable to jet cruising speeds for most missions.

A mockup of the GE36 at the Musée aéronautique et spatial Safran

Propfan

Open rotor engine, or unducted fan , is a type of aircraft engine related in concept to both the turboprop and turbofan, but distinct from both.

Open rotor engine, or unducted fan , is a type of aircraft engine related in concept to both the turboprop and turbofan, but distinct from both.

A mockup of the GE36 at the Musée aéronautique et spatial Safran
Propulsive efficiency comparison for various gas turbine engine configurations
Ground–test installation of the Allison 501-M78 engine with an eight-bladed, 108 in diameter Hamilton Standard propeller for the NASA Propfan Test Assessment.
The GE36 on a McDonnell Douglas MD-80 demonstrator at the 1988 Farnborough Air Show. The gearless unducted fan engine had an overall diameter of 11.67 ft, with either eight or ten blades in front (depending on the particular configuration) and eight blades in back.
The PW–Allison 578-DX engine installed on the same MD-80 testbed. The contra-rotating, geared propfan engine is 11.6 ft in diameter, with six blades in front and six blades in back.
The Progress D-236 propfan engine on the Yak-42E-LL testbed aircraft at the Paris Air Show in 1991.
Progress D27 Propfans fitted to an Antonov An-70.
Safran open rotor mockup in 2017.
Swept propeller
A comparison of the propfan with other types of aircraft engines.

The engine uses a gas turbine to drive an unshrouded (open) contra-rotating propeller like a turboprop, but the design of the propeller itself is more tightly coupled to the turbine design, and the two are certified as a single unit.