How to use the APU in Jets B737-800
Moderator: Moderating Team
-
- Pilot
- Posts: 1
- Joined: 13 Mar 2009, 09:33
How to use the APU in Jets B737-800
Hi,
Please could anyone advise me the correct proceedure in using the APU in Jets?
Suppose you have a flight plan activated, you want to prepare your pre flight checks etc, but in order to have "realism" the APU should have engine sound with the main engines off.
Also after landing and parking, how do you activate the APU ?
I am using flightsim x.
Thank you in advance.
John Hanna
Please could anyone advise me the correct proceedure in using the APU in Jets?
Suppose you have a flight plan activated, you want to prepare your pre flight checks etc, but in order to have "realism" the APU should have engine sound with the main engines off.
Also after landing and parking, how do you activate the APU ?
I am using flightsim x.
Thank you in advance.
John Hanna
-
- Management/Moderator
- Posts: 2415
- Joined: 05 Feb 2007, 23:44
- Location: Christchurch New Zealand
Re: How to use the APU in Jets B737-800
Yes, whenever the engines are off you should really have the APU on otherwise all power on the aircraft will be switched off.ulsterjohn wrote:Hi,
Please could anyone advise me the correct proceedure in using the APU in Jets?
Suppose you have a flight plan activated, you want to prepare your pre flight checks etc, but in order to have "realism" the APU should have engine sound with the main engines off.
Also after landing and parking, how do you activate the APU ?
I am using flightsim x.
Thank you in advance.
John Hanna
Next time post in the "Training" forum of the Message Boards, that's is where this topic will best fit.


Enigma Simulations | Texture Artist and Aircraft Designer
Click my banner to see my paints via Avsim.
- Aaron Robinson
- Administrator
- Posts: 3747
- Joined: 07 Jan 2005, 18:14
- Location: Atlanta, GA
- Contact:
Re: How to use the APU in Jets B737-800
No no no! From a fuel conservation standpoint, you should have the APU on only when necessary because of a lack of ground power or the need for passenger comfort!FJ flyer wrote:Yes, whenever the engines are off you should really have the APU on otherwise all power on the aircraft will be switched off.
Next time post in the "Training" forum of the Message Boards, that's is where this topic will best fit.
Sorry, that's what I've been saying at work for the last year and will continue to say.
Aaron Robinson | Managing Director and Owner
aaron.robinson@simairline.net | AIM: SimAirlineNet
Read the latest SimAirline.net news and updates at Viewpoint
SimAirline.net on Facebook and LinkedIn
aaron.robinson@simairline.net | AIM: SimAirlineNet
Read the latest SimAirline.net news and updates at Viewpoint
SimAirline.net on Facebook and LinkedIn
-
- Management/Moderator
- Posts: 2415
- Joined: 05 Feb 2007, 23:44
- Location: Christchurch New Zealand
Re: How to use the APU in Jets B737-800
That is correct, but does Flight Simulator simulate external power (Depends on which aircraft he's using -Payware or Freeware)?Aaron Robinson wrote:No no no! From a fuel conservation standpoint, you should have the APU on only when necessary because of a lack of ground power or the need for passenger comfort!FJ flyer wrote:Yes, whenever the engines are off you should really have the APU on otherwise all power on the aircraft will be switched off.
Next time post in the "Training" forum of the Message Boards, that's is where this topic will best fit.
Sorry, that's what I've been saying at work for the last year and will continue to say.

Enigma Simulations | Texture Artist and Aircraft Designer
Click my banner to see my paints via Avsim.
-
- Pilot
- Posts: 221
- Joined: 22 Aug 2008, 02:06
- Location: Grand Rapids, MI
- Contact:
Re: How to use the APU in Jets B737-800
I believe, External Power is always available in Flight Simulator.FJ flyer wrote:That is correct, but does Flight Simulator simulate external power (Depends on which aircraft he's using -Payware or Freeware)?Aaron Robinson wrote:No no no! From a fuel conservation standpoint, you should have the APU on only when necessary because of a lack of ground power or the need for passenger comfort!FJ flyer wrote:Yes, whenever the engines are off you should really have the APU on otherwise all power on the aircraft will be switched off.
Next time post in the "Training" forum of the Message Boards, that's is where this topic will best fit.
Sorry, that's what I've been saying at work for the last year and will continue to say.

-
- Management/Moderator
- Posts: 2415
- Joined: 05 Feb 2007, 23:44
- Location: Christchurch New Zealand
Re: How to use the APU in Jets B737-800
Can you turn it off?flybywire22 wrote:I believe, External Power is always available in Flight Simulator.

Enigma Simulations | Texture Artist and Aircraft Designer
Click my banner to see my paints via Avsim.
-
- Moderator
- Posts: 3086
- Joined: 09 Jan 2005, 06:52
- Location: Apex, NC
- Contact:
Re: How to use the APU in Jets B737-800
If external power is available in FS by default, I have yet to figure out how to turn it on.
- Aaron Robinson
- Administrator
- Posts: 3747
- Joined: 07 Jan 2005, 18:14
- Location: Atlanta, GA
- Contact:
Re: How to use the APU in Jets B737-800
Let's keep this topic to the technical side of FS, not real life. Let the other topic handle that. Thanks.
Aaron Robinson | Managing Director and Owner
aaron.robinson@simairline.net | AIM: SimAirlineNet
Read the latest SimAirline.net news and updates at Viewpoint
SimAirline.net on Facebook and LinkedIn
aaron.robinson@simairline.net | AIM: SimAirlineNet
Read the latest SimAirline.net news and updates at Viewpoint
SimAirline.net on Facebook and LinkedIn
-
- Pilot
- Posts: 221
- Joined: 22 Aug 2008, 02:06
- Location: Grand Rapids, MI
- Contact:
Re: How to use the APU in Jets B737-800
I just flew a flight with the PMDG 737 and ground power was available right up until the point I released the brakes and started pushback so I suppose that must have something to do with it.FJ flyer wrote:Can you turn it off?flybywire22 wrote:I believe, External Power is always available in Flight Simulator.

-
- Administrator
- Posts: 1739
- Joined: 07 Jan 2005, 17:29
- Location: Cairo, Egypt
- Contact:
Re: How to use the APU in Jets B737-800
In payware aircraft, the only way to simulate ground power, is when the parking brakes are on.
Try going to the runway, and put the parking brakes on, you'll find that ground power is available. Not a bad idea actually.
Try going to the runway, and put the parking brakes on, you'll find that ground power is available. Not a bad idea actually.

What centreline???