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Meaning of "autorotation" in the English dictionary

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DICTIONARY
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PRONUNCIATION OF AUTOROTATION

autorotation  [ˌɔːtəʊrəʊˈteɪʃən] play
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GRAMMATICAL CATEGORY OF AUTOROTATION

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Autorotation is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES AUTOROTATION MEAN IN ENGLISH?

autorotation

Autorotation

Autorotation is a state of flight where the main rotor system of a helicopter or similar aircraft turns by the action of air moving up through the rotor, as with an autogyro, rather than engine power driving the rotor. The term autorotation dates to a period of early helicopter development between 1915 and 1920, and refers to the rotors turning without the engine. In normal powered flight, air is drawn into the main rotor system from above and exhausted downward, but during autorotation, air moves up into the rotor system from below as the helicopter descends. Autorotation is permitted mechanically because of both a freewheeling unit, which allows the main rotor to continue turning even if the engine is not running, as well as curved main rotor blades such that when the collective pitch is fully down the inner part of the blade has negative pitch relative to the horizontal plane and can be spun up by the relative wind. It is the means by which a helicopter can land safely in the event of complete engine failure. Consequently, all single-engine helicopters must demonstrate this capability to obtain a type certificate.

Definition of autorotation in the English dictionary

The definition of autorotation in the dictionary is the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent.

WORDS THAT RHYME WITH AUTOROTATION


accreditation
əˌkrɛdɪˈteɪʃən
adaptation
ˌædəpˈteɪʃən
alimentation
ˌælɪmɛnˈteɪʃən
citation
saɪˈteɪʃən
consultation
ˌkɒnsəlˈteɪʃən
documentation
ˌdɒkjʊmɛnˈteɪʃən
excitation
ˌɛksɪˈteɪʃən
hesitation
ˌhɛzɪˈteɪʃən
implementation
ˌɪmplɪmenˈteɪʃən
interpretation
ɪnˌtɜːprɪˈteɪʃən
invitation
ˌɪnvɪˈteɪʃən
limitation
ˌlɪmɪˈteɪʃən
meditation
ˌmɛdɪˈteɪʃən
orientation
ˌɔːrɪɛnˈteɪʃən
presentation
ˌprɛzənˈteɪʃən
rehabilitation
ˌriːəˌbɪlɪˈteɪʃən
representation
ˌrɛprɪzɛnˈteɪʃən
reputation
ˌrɛpjʊˈteɪʃən
rotation
rəʊˈteɪʃən
transportation
ˌtrænspɔːˈteɪʃən

WORDS THAT BEGIN LIKE AUTOROTATION

autoptical
autoptically
autoput
autoradiogram
autoradiograph
autoradiographic
autoradiography
autoreverse
autorickshaw
autorotate
autoroute
autosave
autoschediasm
autoschediastic
autoschediaze
autoscopic
autoscopy
autosexing
autosomal
autosomally

WORDS THAT END LIKE AUTOROTATION

action
administration
animation
application
association
certification
combination
communication
confirmation
conversation
corporation
creation
decoration
destination
duration
education
evaluation
federation
formation
foundation
generation

Synonyms and antonyms of autorotation in the English dictionary of synonyms

SYNONYMS

Translation of «autorotation» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF AUTOROTATION

Find out the translation of autorotation to 25 languages with our English multilingual translator.
The translations of autorotation from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «autorotation» in English.

Translator English - Chinese

自转
1,325 millions of speakers

Translator English - Spanish

autorrotación
570 millions of speakers

English

autorotation
510 millions of speakers

Translator English - Hindi

autorotation
380 millions of speakers
ar

Translator English - Arabic

الدوران الأتوماتيكي
280 millions of speakers

Translator English - Russian

авторотации
278 millions of speakers

Translator English - Portuguese

autorotation
270 millions of speakers

Translator English - Bengali

স্বয়ংক্রিয় ঘূর্ণন
260 millions of speakers

Translator English - French

autorotation
220 millions of speakers

Translator English - Malay

Autorotation
190 millions of speakers

Translator English - German

Autorotation
180 millions of speakers

Translator English - Japanese

自転
130 millions of speakers

Translator English - Korean

자동 회전
85 millions of speakers

Translator English - Javanese

Autorotation
85 millions of speakers
vi

Translator English - Vietnamese

autorotation
80 millions of speakers

Translator English - Tamil

தானாகதிரும்புவதை இயக்கும்
75 millions of speakers

Translator English - Marathi

स्वायत्तता
75 millions of speakers

Translator English - Turkish

otomatik döndürme
70 millions of speakers

Translator English - Italian

autorotazione
65 millions of speakers

Translator English - Polish

autorotacji
50 millions of speakers

Translator English - Ukrainian

авторотації
40 millions of speakers

Translator English - Romanian

autorotation
30 millions of speakers
el

Translator English - Greek

autorotation
15 millions of speakers
af

Translator English - Afrikaans

autorotation
14 millions of speakers
sv

Translator English - Swedish

autorotation
10 millions of speakers
no

Translator English - Norwegian

autorotasjon
5 millions of speakers

Trends of use of autorotation

TRENDS

TENDENCIES OF USE OF THE TERM «AUTOROTATION»

The term «autorotation» is regularly used and occupies the 78.944 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Regularly used
63
/100
The map shown above gives the frequency of use of the term «autorotation» in the different countries.
Principal search tendencies and common uses of autorotation
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «autorotation».

FREQUENCY OF USE OF THE TERM «AUTOROTATION» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «autorotation» during the past 500 years. Its implementation is based on analysing how often the term «autorotation» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about autorotation

EXAMPLES

10 ENGLISH BOOKS RELATING TO «AUTOROTATION»

Discover the use of autorotation in the following bibliographical selection. Books relating to autorotation and brief extracts from same to provide context of its use in English literature.
1
Principles of Helicopter Aerodynamics with CD Extra
(a) Rotor in VRS in near vertical descent (b) Rotor in autorotation with forward speed Figure 2.22 Flow visualization at the rotor when it operates in the vortex ring state and in autorotation. Photos from Drees & Hendal ( 195 1 ). to significant  ...
J. Gordon Leishman, 2006
2
Basic Helicopter Handbook
Diane Publishing Company. □ i.tt, nwAiocYcucTouEva soos. inckam coucnvt TO SlOW DESCB4T ANC CUSHION LM4MNS. Figure 77. — Flare autorotation and touchdown. '-ii^'MeM«srooiu£Rvir^':»3f>'«;:cQKnNUE-oovwi-. SUGHT BACK ...
Diane Publishing Company, 1995
3
Cyclic and Collective
Many people wonder how the helicopter blade can produce lift in autorotation. In fact one of the questions most asked of helicopter pilots is • “How do you glide down if the engine stops?” The helicopter takes advantage of the ability of an ...
Shawn Coyle, 2009
4
Art of the Helicopter
Note that in order to produce lift the blade must have a positive angle of attack with respect to RAF and so it is common for the blade to have positive pitch in autorotation. The machine is moving steadily downwards using potential energy to ...
John Watkinson, 2003
5
Beginning iOS 6 Development: Exploring the iOS SDK
Exploring the iOS SDK David Mark, Jack Nutting, Jeff LaMarche, Fredrik Olsson. In this chapter, we'll cover autorotation in detail. We'll start with an overview of the ins and outs of autorotation and then move on to different ways of implementing ...
David Mark, Jack Nutting, Jeff LaMarche, 2013
6
Experimental Robotics: The Eleventh International Symposium
Moreover, in contrast with regular landings—where the pilot could abort a landing attempt and try again later— autorotation landings only give you a single shot at the approach. One autorotation landing attempt with a poor controller suffices to ...
Oussama Khatib, Vijay Kumar, George Pappas, 2009
7
Helicopter Aerodynamics Volume II
An experienced test pilot once told me: “A bad ending of an autorotation is usually survivable, but a bad beginning of an autorotation is usually not.” An analysis of two nearly identical accidents in Southern California within a few months of ...
Ray Prouty, 2009
8
Autonomous Flying Robots: Unmanned Aerial Vehicles and Micro ...
In addition, manned helicopters can maneuver to perform autorotation landing during engine emergencies. The autorotation maneuver is defined as a self- sustained rotation of the rotor without the application of any shaft torque from the  ...
Kenzo Nonami, Farid Kendoul, Satoshi Suzuki, 2010
9
Rotorcraft Flying Handbook
In a helicopter, an autorotation is a descending maneuver where the engine is disengaged from the main rotor system and the rotor blades are driven solely by the upward flow of air through the rotor. In other words, the engine is no longer ...
Faa, 2011
10
iOS Programming: The Big Nerd Ranch Guide, Third Edition
You still have to tell your view controller to allow autorotation only to landscape orientations in shouldAutorotateToInterfaceOrientation:. Bronze Challenge: Proximity Notifications Register for proximity notifications. Proximity refers to the ...
Joe Conway, Aaron Hillegass, 2012

10 NEWS ITEMS WHICH INCLUDE THE TERM «AUTOROTATION»

Find out what the national and international press are talking about and how the term autorotation is used in the context of the following news items.
1
Temporary Anchorage Device (TAD) use in the treatment of anterior …
... the oral surgeon will reposition the posterior maxilla superiorly, allowing autorotation of the mandible upward and forward to close the open ... «Dentistry IQ, Jun 15»
2
IANDS Sponsors No-Cost Webinar on July 1/15 at 11CST Featuring …
Bongart instantly relied on his years of training and experience to perform a successful autorotation, and bring the helicopter to the ground. «PR Web, Jun 15»
3
ANALYSIS: Bell 505 Jet Ranger X technical description
These have required minor modification to allow Bell to perform simulated engine outs for autorotation tuition, making the 505 “more similar to ... «Flightglobal, Jun 15»
4
What you need to know about buying a helicopter
Autorotation capability - this is a feature which means if the engine dies or stops, then the blades will carry on turning and you can glide a ... «GQ.com, Jun 15»
5
Ancillary Medical Solutions Takes On Fall Prevention
The Vestibular Autorotation Test can be used in a physician's office to test whether or not a senior has a vestibular dysfunction. According to the ... «Digital Journal, Jun 15»
6
How Helicopters Are Designed To Land Safely When Their Engine …
A landing via autorotation is also sometimes necessary if the rear rotor blades stop functioning properly, no longer countering for the torque of ... «Gizmodo Australia, Jun 15»
7
Gyrocopter Pilot Lifts Off For 7500 Mile Trip
Gyrocopters generate thrust from an engine-powered rear facing rotor, while the larger unpowered top rotor generates lift by way of autorotation ... «Discovery News, Jun 15»
8
How to Drop Like “The Rock” When Your Helicopter Engine Dies
The solution is autorotation. The pilot gets airflow through the rotor by descending quickly, angling the rotor blades so that the wind turns them. «Air & Space Magazine, May 15»
9
Ford in skies again after plane crash
... 206L4 LongRanger helicopter (N36R) was unable to recover after losing altitude, while the engine attempted autorotation for the second time ... «Belfast Telegraph, May 15»
10
Worth waiting for [CAN2015D2]
... Full Authority Digital Engine Control (FADEC) and 3,000hr TBO, and a high inertia rotor, which delivers superior autorotation capability. «IHS Jane's 360, May 15»

REFERENCE
« EDUCALINGO. Autorotation [online]. Available <https://educalingo.com/en/dic-en/autorotation>. May 2024 ».
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