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Normal/Reduced or Derated ATM Take-off thrust in LVO's

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Normal/Reduced or Derated ATM Take-off thrust in LVO's

Old 22nd Feb 2018, 14:27
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Join Date: Oct 2003
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Normal/Reduced or Derated ATM Take-off thrust in LVO's

Hi Guys and Gals...

Just wondering what your thoughts are when considering whether to use Normal / Reduced or Derated ATM (or a combination of...) Take-off thrust in LVO's?

Does your Company stipulate or give you any guidance on what they expect you to use for take-off?
Autobrake RTO is offline  
Old 22nd Feb 2018, 15:47
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Join Date: May 2003
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As much de-rate as possible subject to runway conditions
Shanwick Shanwick is offline  
Old 22nd Feb 2018, 18:19
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Join Date: Jun 2014
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My previous mob requred TOGA t/o on LVO. Wouldn’t want to get an engine failure on that...

Where I fly now it’s just normal FLEX/ATM
Sidestick_n_Rudder is offline  
Old 22nd Feb 2018, 23:18
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Join Date: Feb 2008
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My employer (AUS regional turboprop) requires rated power with vis 1000m or less.

I understand everyone’s points above regarding control following a failure.
AmarokGTI is offline  
Old 22nd Feb 2018, 23:18
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Along with increased vertigo threat due to higher acceleration, pitch attitude, and subsequent larger thrust reduction when changing to CLB power.

Both methods have pluses and minuses.
misd-agin is offline  
Old 23rd Feb 2018, 10:26
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Join Date: Sep 2007
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Just remind me of the benefit of taking off at full power please.
Peter G-W is online now  
Old 23rd Feb 2018, 13:53
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Interesting replies....thanks!


One possible benefit would be a shorter take-off run and less time exposed to LVO conditions?
Autobrake RTO is offline  
Old 23rd Feb 2018, 14:03
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Join Date: Sep 2007
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Why is the take off run less safe if it takes 5 seconds longer? You could apply that logic to all take off runs.
Peter G-W is online now  
Old 24th Feb 2018, 17:20
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Join Date: Mar 2017
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What then if you throw in a contaminated runway?
CloudHound is offline  
Old 25th Feb 2018, 19:20
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Join Date: Sep 2004
Location: France
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TOGA, FLAPS 2, that will do it in LVO.
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Old 27th Feb 2018, 17:36
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Join Date: Oct 2010
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It's TOGA at our outfit, but I agree that I'd prefer flex for the engine out reasons stated above. Then again TA says, there could be some scenarios for which TOGA would be preferred...
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Old 27th Feb 2018, 18:02
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Join Date: Feb 2005
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Originally Posted by CloudHound View Post
What then if you throw in a contaminated runway?
De-Rate OK but not allowed use temperature assumed for my company on contaminated rwy ( 737-800 )
aerobatic_dude is offline  

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