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WHAT IS APU?

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WHAT IS APU?

Postby Alejandro Rhodes » Mon May 11, 2009 6:46 pm

WHAT IS APU?
I saw this in most of the Citation X photos and there is a code in the modeldef.xml "" there is a "Switch APU" but I don't know what it does PLEASE? :-/


edit: please explain to me in easy words ,like you were explaining to an 11 years old kid  :-[
Last edited by Alejandro Rhodes on Mon May 11, 2009 6:47 pm, edited 1 time in total.
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Re: WHAT IS APU?

Postby JBaymore » Mon May 11, 2009 6:51 pm

Alrot,

Auxilliary Power Unit.

It is an additional jet engine found on many jet aircraft, particularly air transport category planes, that is used to power a generator to supply the aircraft with AC/DC electricity (mainly) while on the ground but not connected to a ground cart or gate supply.  It also can supply bleed air to run the packs and to use to start the main engines.

It can also be utilized in an emergency in flight (they usually have altitude restrictions with them) to power some systems.

It provides no thrust involved in the actual flying of the plane.

Unfortunately, in fs2004 Microsoft forgot that they exist.
Last edited by JBaymore on Mon May 11, 2009 6:56 pm, edited 1 time in total.
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Re: WHAT IS APU?

Postby Alejandro Rhodes » Mon May 11, 2009 7:06 pm

Thanks John

Yes it has , there are couple things in modeldef.xml (FSX-SDK)one its the switch and the other is I will edit this as soon I read it back..
But it is in FSX true models.. :)
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Re: WHAT IS APU?

Postby Fr. Bill » Mon May 11, 2009 9:33 pm

Alex, on the Citation X, XLS, Sovereign, and Columbus the APU also provides bleed air to start the engine(s) when ground power units are not available.

In FSX the APU actually does provide "electric" to eliminate draining the batteries...  8-)
Last edited by Fr. Bill on Mon May 11, 2009 9:34 pm, edited 1 time in total.
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Re: WHAT IS APU?

Postby JBaymore » Tue May 12, 2009 10:21 am

[quote]
Last edited by JBaymore on Tue May 12, 2009 10:26 am, edited 1 time in total.
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Re: WHAT IS APU?

Postby Brett_Henderson » Tue May 12, 2009 2:22 pm

I have two payware models that employ APUs.. A Wilco CitationX, and a Captain Sim 757..

Both require APU bleed-air for starts. I'm not sure if the 757 APU consumes fuel, but the CitationX APU does .. and it requires one of the center tanks to be "open".

Edit:.. but the 757 requires the left/forward tank to have pressure
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Re: WHAT IS APU?

Postby Alejandro Rhodes » Tue May 12, 2009 4:03 pm

Ok, let get honest here ,I can't dig into a Payware super special details because this is not a payware and seems I can't even ask for paypal donations,so will be again my entire contribution to the MSFS enthusiast people and if it someone feels too happy ,will have to fly here and give me at least a Jar of Peanut butter
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Re: WHAT IS APU?

Postby Fr. Bill » Tue May 12, 2009 4:20 pm

[quote]

Fr. Bill, are you saying that in FSX the APU will supply ONLY electric power, not bleed air?
Last edited by Fr. Bill on Tue May 12, 2009 4:21 pm, edited 1 time in total.
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Re: WHAT IS APU?

Postby garymbuska » Tue May 12, 2009 9:15 pm

[quote]Alrot,

Auxilliary Power Unit.




Unfortunately, in fs2004 Microsoft forgot that they exist.
Last edited by garymbuska on Tue May 12, 2009 9:16 pm, edited 1 time in total.
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Re: WHAT IS APU?

Postby JBaymore » Wed May 13, 2009 10:33 am

[quote][quote]Alrot,

Auxilliary Power Unit.




Unfortunately, in fs2004 Microsoft forgot that they exist.
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