In
aerospace engineeringAerospace engineering is the branch of engineering behind the design, construction and science of aircraft and spacecraft. It is broken into two major and overlapping branches: aeronautical engineering and astronautical engineering...
, the
propeller head (or
hub) is the central part of the
propellerA propeller is a type of fan which 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 air or water is accelerated behind the blade...
which is mounted on the
aircraft engineAn aircraft engine is a propulsion system for an aircraft. Aircraft engines are almost always either lightweight piston engines or gas turbines. This article is an overview of the basic types of aircraft engines and the design concepts employed in engine development for aircraft.- Engine design...
's reduction
gearA gear is a component within a transmission device that transmits rotational torque by applying a force to the teeth of another gear or device. A gear is different from a pulley in that a gear is a round wheel that has linkages that mesh with other gear teeth, allowing force to be fully...
, and in which the propeller blades are inserted, and which manages
blade pitchBlade pitch or simply pitch refers to turning the angle of attack of the blades of a propeller into or out of the wind to control the production or absorption of power. Wind turbines use this to adjust the rotation speed and the generated power...
variation. Most of the time (for aerodynamic reasons), it is covered by a hemispherical or
conicalthumb|250px|right|A right circular cone and an oblique circular coneA cone is a three-dimensional geometric shape that tapers smoothly from a flat, round base to a point called the apex or vertex...
spinner.
The term
propeller head (sometimes abbreviated
PropHead) also refers to a person (usually an
engineerEngineers are concerned with developing economical and safe solutions to practical problems, by applying mathematics and scientific knowledge while considering technical constraints. The term is derived from the Latin root "ingenium," meaning "cleverness"...
of some type) who is employed to do a technically demanding job.
In
aerospace engineeringAerospace engineering is the branch of engineering behind the design, construction and science of aircraft and spacecraft. It is broken into two major and overlapping branches: aeronautical engineering and astronautical engineering...
, the
propeller head (or
hub) is the central part of the
propellerA propeller is a type of fan which 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 air or water is accelerated behind the blade...
which is mounted on the
aircraft engineAn aircraft engine is a propulsion system for an aircraft. Aircraft engines are almost always either lightweight piston engines or gas turbines. This article is an overview of the basic types of aircraft engines and the design concepts employed in engine development for aircraft.- Engine design...
's reduction
gearA gear is a component within a transmission device that transmits rotational torque by applying a force to the teeth of another gear or device. A gear is different from a pulley in that a gear is a round wheel that has linkages that mesh with other gear teeth, allowing force to be fully...
, and in which the propeller blades are inserted, and which manages
blade pitchBlade pitch or simply pitch refers to turning the angle of attack of the blades of a propeller into or out of the wind to control the production or absorption of power. Wind turbines use this to adjust the rotation speed and the generated power...
variation. Most of the time (for aerodynamic reasons), it is covered by a hemispherical or
conicalthumb|250px|right|A right circular cone and an oblique circular coneA cone is a three-dimensional geometric shape that tapers smoothly from a flat, round base to a point called the apex or vertex...
spinner.
The term
propeller head (sometimes abbreviated
PropHead) also refers to a person (usually an
engineerEngineers are concerned with developing economical and safe solutions to practical problems, by applying mathematics and scientific knowledge while considering technical constraints. The term is derived from the Latin root "ingenium," meaning "cleverness"...
of some type) who is employed to do a technically demanding job. It appears to derive from a "head in the clouds" type stereotyping of more technically aware people (compare with
geekThe word geek is a slang term, noting individuals as "a peculiar or otherwise odd person, especially one who is perceived to be overly obsessed with one or more things including those of intellectuality, electronics, etc." Formerly, the term referred to a carnival performer often billed as a wild...
,
nerdNerd is a term often bearing a derogatory connotation or stereotype, that refers to a person who passionately pursues intellectual activities, esoteric knowledge, or other obscure interests that are age inappropriate rather than engaging in more social or popular activities...
,
absent-minded professorThe absent-minded professor is a stock character of popular fiction, usually portrayed as a talented academic whose focus on academic matters leads them to ignore or forget their surroundings....
, etc.) or possibly from the
propeller beanieBeanie is the name for two distinct types of cap or hat. The name "beanie" probably comes from the early-20th century slang term "bean," meaning "head"....
. The term may be meant or taken as slightly
pejorativePejoratives are terms which have a negative connotation. Sometimes a term may begin as a pejorative word and eventually be adopted in a non-pejorative sense...
but is usually meant with some respect.
There is a
UKThe United Kingdom of Great Britain and Northern Ireland is a sovereign state located off the northwestern coast of continental Europe. It is an island country, spanning an archipelago including Great Britain, the northeastern part of Ireland, and many small islands...
big beatBig beat is a term employed since the mid 1990s by the British music press to describe much of the music by artists such as The Chemical Brothers, Fatboy Slim, The Crystal Method, Propellerheads and The Prodigy, typically driven by heavy breakbeats and synthesizer-generated loops and patterns in...
group called
PropellerheadsPropellerheads are a British big beat music band made up of electronic producers Will White and Alex Gifford. The term "Propellerhead" is slang for a nerd, and when Gifford and White heard a friend from California use this in a conversation, they thought it the perfect name for their...
.
There is a
SwedishSweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe...
music software company called
Propellerhead
See also
- Motorhead
Motörhead are an English heavy metal group.Motorhead may also refer to:*Motörhead , Motörhead's 1977 debut album*"Motorhead" **"Motorhead" , a 1981 live version of the song...
- Petrolhead
Petrolhead is the third studio album by ex-Cold Chisel guitarist / vocalist Ian Moss. The songs on the album are written by Don Walker, Ian Rilen, Spencer Jones and Andy Heggen. This album was a departure from Ian's previous albums as it has more of a Hard Rock sound to it. Moss said that "it was a...
- Rotorhead
Rotorhead - an enthusiast of Wankel rotary engines. Rotorheads are usually fond of Mazda RX-7s and RX-8s. Also refers to helicopter pilots or helicopter enthusiasts, as the rotary wing assemblies on these aircraft are called rotors...
- The Mad Scientists' Club
The Mad Scientists' Club is a series of four books written for children by Bertrand R. Brinley and illustrated by Charles Geer.-Books in the series:* The Mad Scientists' Club consisting of:...
- October Sky
October Sky is a 1999 film produced by directed by Joe Johnston, starring Jake Gyllenhaal, Chris Cooper and Laura Dern. It is based on the true story of Homer Hickam, a coal miner's son who was inspired by the first Sputnik launch to take up rocketry against his father's wishes, and eventually...