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Airbus X Extended Reduced takeoff power?

Featured Replies

So I have been flying the Airbus X extended for a while now but I have one problem. Every time I do a departure I get a reduced N1 throttle setting of about 88.7% I believe. I am wondering what do I have to do in order to get a max power takeoff ( I want to do departures out of KJAC and such...)

go one more detente forward for TOGA as opposed to FLEX T/O

Scott
Boeing777_Banner_Pilot.jpg

  • Author

Even in the TOGA detente i'm still only getting 88.7% N1 on takeoff with a message on the center display that says T/O Inhibit. Any Ideas?

Even in the TOGA detente i'm still only getting 88.7% N1 on takeoff with a message on the center display that says T/O Inhibit. Any Ideas?

 

 

It has something to do with your throttle null and sensitivity settings I would think - this bird is a pain to get the throttles correctly setup - hit aerosoft forums - plenty of topics on it there for sure

Rich Sennett

               

As Rich said. This is a snippet from the forums...

 

For further help please state:

 

- Number of hardware throttles You use

-Using FSX standard axis assignment OR FSUIPC assignment.

 

For those with only one throttle lever assigned:

 

Goto

(Win 7):

C:\Users\User_name\Documents\Flight Simulator X Files\AerosoftAirbusExtended\

 

NOTE !! that the exact name can depend on You OS language, for German i will be:

C:\Users\User_name\Documents\Flight Simulator X Dateien\AerosoftAirbusExtended\

 

If no folder named \AirbusExtended\ can be found in You local language folder, then copy that folder from the english folder into the local.

 

(Win XP):

C:\Documents and Settings\User_name\Documents\Flight Simulator X Files\AerosoftAirbusExtended\

 

See above for other languages than english.

 

Open AsInput.ini with notepad.

Check that it looks like this:

 

[Common]

Logging=1

NullZone=0

 

[FlightControls]

Enable=1

 

[FADEC]

AxesCount=1

//InvertAxes=1

Event1=AXIS_THROTTLE_SET

 

//AxesCount=2

//Event1=AXIS_THROTTLE1_SET

//Event2=AXIS_THROTTLE2_SET

 

If using two throttle levers:

 

[Common]

Logging=0

NullZone=0

 

[FlightControls]

Enable=1

 

[FADEC]

//AxesCount=1

//InvertAxes=1

//Event1=AXIS_THROTTLE_SET

 

AxesCount=2

Event1=AXIS_THROTTLE1_SET

Event2=AXIS_THROTTLE2_SET

 

Experiment with enabeling the axis invertion by removing the slashes // before: //InvertAxes=1 to read:

InvertAxes=1

 

If using FSUIPC assignment, make sure that the throttles are not assigned in the FSX controller menu.

 

Then open the FSUIPC menu and go to Axis assignment and set a checkmark in Aircraft specific?

Setup each throttle axis to read like this:

 

 

Then select the Joystick calibration tab and make it look like this:

 

 

Now go into the \Flightsimulator X\ mainfolder, find the \Modules\ folder and find the FSUIPC4.ini file and open it with notepad.

Find this line:

ShortAircraftNameOk=

and ensure it reads:

ShortAircraftNameOk=Yes

 

Now find the entry for the Airbus X Extended that could look like this (depending on what type and livery was used during FSUIPC asignment)....

 

[JoystickCalibration.Airbus A320 Aer Lingus EI-DEK]

and change it to:

[JoystickCalibration.Airbus A32]

 

Do the same for this line:

 

[Axes.Airbus A320 Aer Lingus EI-DEK]

to make it read:

[Axes.Airbus A32]

 

Finn

Al Stiff

88.7% is TOGA power, depending on altitude, pressure, temperature, airspeed etc. No need to jump through even more hoops ...   B)

 

As mentioned, see the Aerosoft Airbus forums for more info and discussions.

 

 

 

EDIT:

 

88.7% vs. 89.2% - The Aerosoft Airbus has been tweaked pretty close to the real thing:

http://forum.aerosoft.com/index.php?/topic/79383-not-going-to-full-throttle/?p=566573

Edited by olli4740

What happened to AVSIM

  • Commercial Member

1. As Oliver has mentioned - Max thrust output is determined by a number of atmospheric conditions such as static temperature, and barometric pressure.  This is all regulated and monitored through the FADEC to give you the max rated thrust for a given condition.

 

If you want to test the accuracy you set the sim up for ISA conditions with packs off, set TOGA and compare the figures to the data in the QRH.

Bottom line is what you are seeing is not unusual. 

 

TO-INHIBIT just means the ECAM inhibits certain messages from causing distractions during the take off roll and below the thrust reduction altitude.

Rob Prest

 

  • Author

Great thanks for all of your help guys I will check it out today!

Just push the throttle to MCT/FLX detend, then your takeoff will a reduced power takeoff according to the values u entered in the TAKEOFF PERFORMANCE PAGE.

TOGA in airbus is not like TOGA in boeing, different philosophy's.

 

 

Regards......

  • 3 weeks later...

Hey. I complained about this and found a thread somewhere. What you can do is press the F4 key and keep it pressed during takeoff roll and youll get the full power. Really though, it seems that this airbus is too real. I ended up having to admit that I was overloading the airplane and created a second profile in fspassengers for reduced load.

This is intended, the Airbus will rate thrust as an equivalent according to the outside conditions. If you are at a hot airport for example air density is reduced therefore the engines ability to combust and ingest air is also reduced because of the reduced density. Think of it as if you were breathing at sea level compared with on a mountain, the higher you go the harder it is to breath, so to achieve a similar amount of thrust as at sea level the engine must do more work. Hot and high airports are the biggest challenges when considering aircraft performance. The Airbus FADEC rates power accordingly to those conditions to achieve equivalent thrust. If the FADEC sets TOGA as 88% at a 'colder' airport you may achieve completely equivalent thrust at 95% at a hot and high one, the value will always be greater the hotter and higher you go.

 

Bear in mind N1 settings are not indicative of thrust, they are indicative of the speed that the N1 rotor is spinning as a percentage of it's rated speed. This does not mean it is producing the same thrust in any situation or any thrust for that matter! An engine requires a lot of air and the necessary properties of air are variables we cannot control so the FADEC simply takes these conditions into account and rates the engine accordingly so that it's life is extended as much as possible.

 

We must also remember that TOGA does not take into account the actual airport. FLEX is used more because calculated properly, FLEX can determine an appropriate thrust according to the conditions, weight AND the airport. Airbus mentality is to use all of the runway using as little thrust as possible so FLEX makes this possible. As a pilot your job is to work out whether the conditions are conducive to takeoff with that particular weight, temperature etc at an appropriate FLEX and if required whether a takeoff will be possible with TOGA. If a takeoff is not possible then weight must be considered, flap setting and so on. TOGA is seldom used but is most often seen when conditions merit maximum performance which is usually when flying heavy, hot and high or in adverse weather/contaminated runway.

 

The A320 is a very capable aircraft and when you use TOGA, you are achieving maximum thrust!

 

Lawrence Ashworth

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