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en toupie

English translation: (uncontrollable) spin

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:en toupie
English translation:(uncontrollable) spin
Entered by: Rodrigo Trompiz

16:47 May 20, 2009
French to English translations [PRO]
Tech/Engineering - Aerospace / Aviation / Space
French term or phrase: en toupie
Newspaper article about a series of helicopter crashes:

Pour ces familles, l'utilisation de l'EC 145 en montagne pose un vrai problème. Depuis trois ans, elles s'appuient notamment sur des constats et témoignages récurrents laissant suspecter un défaut de rendement en altitude du rotor anti-couple, partie vitale de l'appareil l'empêchant de partir « en toupie ».
Rodrigo Trompiz
Local time: 10:48
(uncontrollable) spin
Explanation:
Spinning like a top
Selected response from:

Bashiqa
France
Local time: 11:48
Grading comment
Thanks!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +2(uncontrollable) spin
Bashiqa
3whirl-mode
liz askew
Summary of reference entries provided
liz askew

  

Answers


5 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
(uncontrollable) spin


Explanation:
Spinning like a top

Bashiqa
France
Local time: 11:48
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 23
Grading comment
Thanks!

Peer comments on this answer (and responses from the answerer)
agree  chris collister
11 mins
  -> Merci Chris.
agree  Didier Fourcot: See in wikipedia "before it spins out of control" (French version of this article is "rotor anticouple": http://en.wikipedia.org/wiki/Tail_rotor
20 hrs
  -> Merci Didier.
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9 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5
whirl-mode


Explanation:
Helicopter Pilot- flying-diary
A UK helicopter pilot shares his training diaries. ... We got underway, with discussion about accidents and how the safety course has proven to .... on the drive system, of note here was the "whirl mode" of the tail rotor drive shaft. ...
www.ukhelicopterpilot.com/flying-diary - 164k - Cached - Similar pages

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Note added at 10 mins (2009-05-20 16:57:54 GMT)
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au secours! aux couffes qui parfois toupillent sans pourtant se ...
The question is: do the boats only whirl or just turn around or do they actually ... Anyway, "toupiller" means to spin around like a top (une toupie), ...
www.translatorscafe.com/cafe/MegaBBS/thread-view.asp?posts=... - 62k - Cached - Similar pages

liz askew
United Kingdom
Local time: 10:48
Native speaker of: Native in EnglishEnglish
PRO pts in category: 19

Peer comments on this answer (and responses from the answerer)
neutral  chris collister: The spin referred to is due to the torque reaction on the blades. If there is no tail rotor, the result is uncontrollable rapid rotation. "whirl" is a dynamic instability specific to rotating shafts
6 mins
  -> what about spinning like a top, to keep the image?
neutral  Bashiqa: A top actually spins in a controlled manner. When a helicopter loses its tail rotor it turns on itself initially before losing control and crashing in a tumbling motion.
2 hrs
  -> Thank you for the explanation :-)
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Reference comments


8 mins
Reference

Reference information:
anything to do with "whirl-mode"?

Effects of Rotor Design Variations on Tiltrotor Whirl-Mode ...
Tiltrotor performance is constrained by coupled wing/rotor whirl-mode aeroelastic instability.
www.stormingmedia.us/17/1760/A176084.html - Similar pages
by V Cart - Cited by 6 - Related articles - All 5 versions

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Note added at 11 mins (2009-05-20 16:59:02 GMT)
--------------------------------------------------

spinning like a top

NY NBC Helicopter Crash Caught On Video.... [Archive] - SpeedGuide ...
6 posts - Last post: 5 May 2004
usually the first sign of trouble with a helicopter is when it starts spinning, and that one was spinning like a top ...
forums.speedguide.net/archive/index.php/t-143554.html - 7k - Cached - Similar pages

liz askew
United Kingdom
Native speaker of: Native in EnglishEnglish
PRO pts in category: 19
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