Crossword clues for propeller
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Propeller \Pro*pel"ler\, n.
One who, or that which, propels.
A contrivance for propelling a steam vessel, usually consisting of a screw placed in the stern under water, and made to revolve by an engine; a propeller wheel.
A steamboat thus propelled; a screw steamer.
Propeller wheel,the screw, usually having two or more blades, used in propelling a vessel.
Douglas Harper's Etymology Dictionary
1780, "anything that propels," agent noun from propel. In mechanical sense, 1809, of ships; of flying machines (in a broad, theoretical sense) 1842, in the specific modern sense 1853.
n. 1 One who, or that which, propels. 2 A mechanical device, with shaped blades that turn on a shaft, to push against air or water, especially one used to propel an aircraft or boat. 3 A steamboat thus propelled; a screw steamer.
n. a mechanical device that rotates to push against air or water [syn: propellor]
A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and a fluid (such as air or water) is accelerated behind the blade. Propeller dynamics, like those of aircraft wings, can be modelled by either or both Bernoulli's principle and Newton's third law. A marine propeller of this type is sometimes colloquially known as a screw propeller or screw, however there is a different class of propellers known as cycloidal propellers - they are characterized by the higher propulsive efficiency averaging 0.72 compared to the screw propellers average of 0.6 and the ability to throw thrust in any direction at any time. Their disadvantages are higher mechanical complexity and higher cost.
Propeller is the fifth album by Dayton, Ohio indie rock group Guided by Voices.
An aircraft propeller (noun /prəˈpel·ər/) or airscrew converts rotary motion from an engine or other mechanical power source, to provide propulsive force. It comprises a rotating power-driven hub, to which are attached several radial airfoil-section blades such that the whole assembly rotates about a longitudinal axis. The blade pitch may be fixed, manually variable to a few set positions, or of the automatically-variable "constant-speed" type.
The propeller attaches to the power source's driveshaft either directly or, especially on larger designs, through reduction gearing.
Most early aircraft propellers were carved by hand from solid or laminated wood, while metal construction later became popular. More recently, composite materials are becoming increasingly used.
Propellers are only suitable for use at subsonic airspeeds up to around 480 mph (770 km/h), as above this speed the blade tip speed begins to go supersonic, with the consequent shockwaves causing high drag and other mechanical difficulties.
Propeller is an Estonian punk band formed in 1978.
Propeller is a theatre company which presents the plays of William Shakespeare in the UK and around the world. The director is Edward Hall, and the casts are exclusively male actors.
Propeller is a 2002 studio album from the American singer-songwriter Peter Stuart. The album marked Stuart's solo debut. Stuart had previously formed the rock band Dog's Eye View in 1994. Before their hiatus, Stuart had been Dog's Eye View's lead vocalist and songwriter.
The album's lead single was " With My Heart in Your Hands".
A propeller is a device that converts rotational motion into thrust.
Propeller may also refer to:
- Propeller (aircraft), aircraft propellers
- Propeller (marine), marine propellers
- Propeller (band), an Estonian punk band
- Propeller (Guided by Voices album), 1992
- Propeller (Peter Stuart album), 2002
- Propeller Records, a record label
- Propeller TV, a British television channel
- Parallax Propeller, a microcontroller
- Propeller.com, the social news website operated by AOL
- Propeller (theatre company), the UK theatre group
- Beta-propeller, a protein fold
- Propellers (band), an English band
- Propellor-shaped structures observed in the rings of Saturn
Usage examples of "propeller".
Her great propellers had been drawn and housed during our descent of the shaft and in their place had been run out the smaller but more powerful water propellers.
The roar increased, the propeller looked like a solid circle of wood, and the trim little monoplane moved slowly across the rising ground, increasing its speed every second, until, like some graceful bird, it suddenly rose in the air as Tom tilted the wing tips, and soared splendidly aloft!
I dipped to a vol-pique, but again a tentacle fell over the monoplane and was shorn off by the propeller as easily as it might have cut through a smoke wreath.
She stared at him in confusion as a propeller chopped the air, caught, and revved into full power.
One could not make sudden movements in a strider, just as one could not stop an ocean liner on a dime or spin the arm of a crane like a propeller.
It was an ancient hunger which, unfed, waited, crouched, metal entrail upon metal entrail, little flailing propellers of razor-screw all bright with lust.
Tried to send some boats up the channel to get us from that direction, but Jim blocked the deep part of the river with the Blowfish and they skragged one of their propellers on an old oil drum.
The ship would tilt, the propellers would catch and the vessel would rise up and over again in a bucksaw motion that went on for several minutes.
Aft, the pounding engine shone with care and oil, more men using long-nosed cans to squirt oil into joints, others cleaning with swatches of cotton waste, others tending dials and pumps and valves as the engine drove the propeller shaft against the crush of the sea.
The frail fabric of the torpedo boat shuddered as the silver cylinder arched into the water, its contrarotating propellers already spinning.
Rifles cracked, officers shouted orders, men yelled directions to one another from the water and from the decks of myriad boats, while through all ran the purr of countless propellers cutting water and air.
There was a steel axis to the whole affair, a central backbone which terminated in the engine and propeller, and the men and magazines were forward in a series of cabins under the expanded headlike forepart.
Without constant mowing, the hydrilla, which sprouted as fast as eighth-grade girls, would wrap itself around boat propellers.
But a low beach, possibly formed by the recent overturning of the berg, received the Titan, and with her keel cutting the ice like the steel runner of an iceboat, and her great weight resting on the starboard bilge, she rose out of the sea, higher and higher --- until the propellers in the stern were half exposed --- then, meeting an easy, spiral rise in the ice under her port bow, she heeled, overbalanced, and crashed down on her side, to starboard.
Today, when it comes to scheduled passenger airline flights, both propellers and jets are about equally safe.