Airbus... Why "Autothrust" and not "Autothrottles"
Thread Starter
Join Date: May 2005
Location: usa
Posts: 193
Likes: 0
Received 0 Likes
on
0 Posts
Airbus... Why "Autothrust" and not "Autothrottles"
Legit question. I understand the fact that the throttles don't move on A320 series and above, but they do on A300/A310. Any idea why Airbus does not refer to them as "Throttles" (like every other airliner I've ever flown) but rather, "Thrust?"
Just because they don't move, aren't they still called "Throttles?"
Thx
Just because they don't move, aren't they still called "Throttles?"
Thx
Per Ardua ad Astraeus
Join Date: Mar 2000
Location: UK
Posts: 18,579
Likes: 0
Received 0 Likes
on
0 Posts
a) They do 'move'
b) Boeing call them thrust levers but call it auto-throttle - go figure
c) Boeing then talk about 'over boost'
Don't ask.
On the very rare occasions a sim ride was going well, I had been known to call for 'Engage autothrust' just to wind up the TRE. OK - never.
b) Boeing call them thrust levers but call it auto-throttle - go figure
c) Boeing then talk about 'over boost'
Don't ask.
On the very rare occasions a sim ride was going well, I had been known to call for 'Engage autothrust' just to wind up the TRE. OK - never.
Last edited by BOAC; 9th Jun 2012 at 16:54.
Join Date: Oct 2000
Location: South West UK
Posts: 367
Likes: 0
Received 0 Likes
on
0 Posts
could be because jet engines dont have throttles! They have controls which alow the pilot to modulate the thrust ie "thrust levers".
I've always laughed at the use of the term "overboost" in the context of a jet engine!
Happy landings
3 Point
I've always laughed at the use of the term "overboost" in the context of a jet engine!
Happy landings
3 Point
Last edited by 3 Point; 9th Jun 2012 at 17:02.
Join Date: Feb 2000
Location: Alaska, PNG, etc.
Age: 60
Posts: 1,550
Likes: 0
Received 0 Likes
on
0 Posts
Well, technically, a "throttle" is a device that controls airflow by restricting an air intake passage. (Much as "throttling" someone means squeezing their throat so that they can't breathe) That's how power is controlled on most gasoline piston engines. Turbine engines do not control power by "throttling" air intake, so from a purely pedantic standpoint, the term "throttle" is not correct on a turbine engine. But, if you are truly convinced that this is a important distinction, and you spend any amount of emotional energy worrying about it or seriously debating it, you are probably desperately in need of a hobby or a girlfriend.
Dog Tired
BOAC, take note: A Squared is, clearly, an educated A-team person who knows a bit about aircraft and not from the ruffian B-team.
He probably has a hobby and a girlfriend as well.
Salute.
He probably has a hobby and a girlfriend as well.
Salute.
Last edited by fantom; 9th Jun 2012 at 20:05.
Per Ardua ad Astraeus
Join Date: Mar 2000
Location: UK
Posts: 18,579
Likes: 0
Received 0 Likes
on
0 Posts
I think A squared needs to address that post to aa73 (or Boeing). As you could read, I don't give a monkey's. I push and pull them and the engines throttle up and down
Piston engines usually have throttles.
Turboprops have power levers.
Jets have thrust levers.
Boeing talk of autothrottle and overboost is simply paying respect to their heritage and tradition, bless 'em.
Turboprops have power levers.
Jets have thrust levers.
Boeing talk of autothrottle and overboost is simply paying respect to their heritage and tradition, bless 'em.
Thread Starter
Join Date: May 2005
Location: usa
Posts: 193
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the replies.
Here at AA they have always been called "Throttles." It's on all the checklists... On the Before Start checklist, "Throttles.... Closed." On a Go-around... "Throttles... TO/GA". We also call for the Autothrottles to be "Armed" and "Engaged" when cleared for T/O.
I was just curious why Airbus went with "Thrust".
Here at AA they have always been called "Throttles." It's on all the checklists... On the Before Start checklist, "Throttles.... Closed." On a Go-around... "Throttles... TO/GA". We also call for the Autothrottles to be "Armed" and "Engaged" when cleared for T/O.
I was just curious why Airbus went with "Thrust".
Last edited by aa73; 9th Jun 2012 at 21:48.
Join Date: Oct 2006
Location: Earth
Posts: 93
Likes: 0
Received 0 Likes
on
0 Posts
I was just curious why Airbus went with "Thrust".
Join Date: Dec 1999
Location: UK
Posts: 2,584
Likes: 0
Received 0 Likes
on
0 Posts
There's something rather sad about people who snipe at correctness and try to uphold sloppiness, especially in this profession where you'd imagine accuracy would be something that is appreciated.
"Minimums" is just plain wrong, so why take a cheap shot at the French for being correct for once? Oh dear...If only Airbus did use correct English instead of the mangled, bastardised Frenglish gobbledegook their manuals are written in.
And while we're at it, "throttle" is, as A Squared accurately described, completely incorrect on a turbine and for exactly the reasons he described. Why that is worthy of derision is, frankly, beyond me. If a jet's power control is a throttle then it's FCU is a carburettor. Jesus! Pretty basic stuff, that...
"Minimums" is just plain wrong, so why take a cheap shot at the French for being correct for once? Oh dear...If only Airbus did use correct English instead of the mangled, bastardised Frenglish gobbledegook their manuals are written in.
And while we're at it, "throttle" is, as A Squared accurately described, completely incorrect on a turbine and for exactly the reasons he described. Why that is worthy of derision is, frankly, beyond me. If a jet's power control is a throttle then it's FCU is a carburettor. Jesus! Pretty basic stuff, that...
But, if you are truly convinced that this is a important distinction, and you spend any amount of emotional energy worrying about it or seriously debating it, you are probably desperately in need of a hobby or a girlfriend.
As for "throttle", it doesn't only apply an carburetted engine; if I throttle my
**** or ****, I "restrict" their output, just as I restrict the output of my jet engine.
This is merely a case of the Airbii types trying to be different, or poor use of the English language.
Join Date: Mar 2006
Location: USA
Posts: 2,514
Likes: 0
Received 0 Likes
on
0 Posts
The same reason why the Airbus GPWS announces "Minima" and not "Minimums" like every other aircraft. Trust the French to teach the world how to speak English.
I'm always amused that the throttle vs. thrust debate comes up every year or so. Standing by for the thread on spoilers vs. speed brakes.
I move to rename those devices in the interest of political correctness. How about we use the terms power lever and boards instead? This should ease the transition between Boeing and Airbus.
Last edited by Check Airman; 10th Jun 2012 at 02:35.
Join Date: Feb 2008
Location: Wingham NSW Australia
Age: 83
Posts: 1,343
Likes: 0
Received 0 Likes
on
0 Posts
Throttles v's Thrust Levers etc.
They are what the manufacturer chooses to call them. I'm with A Squared, if it means that much to anyone they need to get a life. Personally I prefer "Throttles" over "Thrust Levers". "8 hours Bottles to Throttles" sounds much better than "8 hours Bottles to Thrust Levers", I think. Oh, for zeBedie, not all turbo-props have Power levers, C130's have Throttles.
Last edited by Old Fella; 10th Jun 2012 at 02:47.
Join Date: Oct 2006
Location: Over the Pacific mostly
Posts: 1,043
Likes: 0
Received 0 Likes
on
0 Posts
The same reason why they call them "sharklets" and not winglets, they have a different filosophy therefore they have to name things differently, flap zero vs flaps up and so on. Who cares?