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Why ALWAYS APU first?

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  • Author

NGX Tutorial #2, page 0.00.12

I quote textually:

 

 

"TUTORIAL #2

Schiphol tries to minimize use of the APU on the ground for noise abatement reasons, so we’ll connect the Ground Power and the Air Conditioning cart for now. We’ll start the APU later in the preflight process."

 

This is my "way to operate" the 737 NGX APU.  B)

 

 


Probably because 99.9% of these so called 'tutorials' are created by spotty 14-18yr old lads with hoarse voices...with little explanation behind their methodology - they do the things the way they do 'just because'.

 

Most than probably, I think  -_-  

 

 


Thing is, many simmers (not neccessarily you) figure that there is only one right, realistic way to operate an airliner "as an airline does", while there is almost as many ways to operate a 737 as there are airlines operating is. And even more, if you account airport variations.

 

I agree.

Ivan Lewis

PMDG B737NGX, B777 and B747v3 QOTS II

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I'll put it down to a preference/habit. My NGX panel state is just a slightly modified 'Long' panel state that PMDG give you. I have the GPU & Air connected from start up - so I start the APU just after the Departure Briefing normally.

 

Don't worry - we'll be starting with the GPU connected on my B777 tutorials (-;

 

Same to me. Turn on batteries and then switch to GPU. APU will be switched on just prior to pushback in the final preperation.

Best regards, Steffen

vrs_supporter_zpsiwiqesbo.png

Fight time: NGX 737-700: 37,0h; -800: 47,2h

I had 4 flights with Delta last week. Two had a damaged APU( The third had a hydralic leak and the fourth could not start the engine during pushback). So if you want to do a realistic Delta flight: Connect Groundpower and start the engines at the gate! :unsure:  :lol:  :lol:

Airports also impose limitations on the use of APU as part of their noise abatement procedures. AT Heathrow (EGLL) these include

 

 

 

(iii) Hierarchy of power sources

 

The following hierarchy of power sources must be followed:

 

(1) FEGP - to be used whenever supplied and serviceable;

 

(2) GPU - only to be used when FEGP is not supplied or the unit is unserviceable;

 

(3) APU - only to be used when neither FEGP nor GPU is supplied or both units are unserviceable.

 

 

There also other restrictions.

Gerry Howard

  • Commercial Member

 

 


All this said, my question is why many of simmers who build FSX airliners tutorials don't take this into account

 

...because most of the simmers creating tutorials don't know what they're talking about (particularly those on YouTube).  Sure, they know how to get the thing going, but there's no why behind any of it.

 

Sorry, but as someone who was an instructor at one time, knowing and conveying the why behind your actions is extremely important.

 

EDIT:

 


Probably because 99.9% of these so called 'tutorials' are created by spotty 14-18yr old lads with hoarse voices...with little explanation behind their methodology - they do the things the way they do 'just because'.

 

Just noticed this.  Bingo!

Kyle Rodgers

Airports also impose limitations on the use of APU as part of their noise abatement procedures. AT Heathrow (EGLL) these include

 

 

 

 

There also other restrictions.

 

What´s FEGP?

Best regards, Steffen

vrs_supporter_zpsiwiqesbo.png

Fight time: NGX 737-700: 37,0h; -800: 47,2h

  • Commercial Member

GPU is generally referred to as a mobile cart, FEGP is fixed, eg plugging into the gate.

Rob Prest

 

  • Commercial Member

I had 4 flights with Delta last week. Two had a damaged APU( The third had a hydralic leak and the fourth could not start the engine during pushback). So if you want to do a realistic Delta flight: Connect Groundpower and start the engines at the gate! :unsure:  :lol:  :lol:

 

Delta mainline or Delta connection?

 

Sounds a lot like when I had to deal with [a particular regional carrier with a bunch of CR2s and 7s].

"...and you have an air start on A1A, A1B, and A1C."

"Lemme guess...all 700s?"

"Yep."

"Yep..."

Kyle Rodgers

  • Author

 

 


...because most of the simmers creating tutorials don't know what they're talking about (particularly those on YouTube).  Sure, they know how to get the thing going, but there's no why behind any of it.
 
Sorry, but as someone who was an instructor at one time, knowing and conveying the why behind your actions is extremely important.

 

100% agree! My question had been fully answered  B)

Ivan Lewis

PMDG B737NGX, B777 and B747v3 QOTS II

Delta mainline or Delta connection?

 

Sounds a lot like when I had to deal with [a particular regional carrier with a bunch of CR2s and 7s].

"...and you have an air start on A1A, A1B, and A1C."

"Lemme guess...all 700s?"

"Yep."

"Yep..."

It was delta mainline. The best was the engine failure during pushback. They pulled us back to the gate and were so clueless for 2h until they decided to change the plane. Pilot annoincement from a flight with apu not working: "oh I forgot to tell you that our apu is not working.we gonna start the engines at the gate." :)

...because most of the simmers creating tutorials don't know what they're talking about (particularly those on YouTube).  Sure, they know how to get the thing going, but there's no why behind any of it.

 

Sorry, but as someone who was an instructor at one time, knowing and conveying the why behind your actions is

Exactly. No point just saying the Hydraulics have to be on prior to pushback and start, JUST because the checklist says so (random example). Why do they have to be on? My favourite is when they just calmly move over and away from a switch whilst saying "That's not used much"..... LOL

Boeing777_Banner_Betateam.jpg
 

- Luke Pabari

  • Commercial Member

 

 


My favourite is when they just calmly move over and away from a switch whilst saying "That's not used much"..... LOL

 

From a trainer, this is precisely what looked for when hiring new trainers.  Half of it was to see how well they knew the program (and, therefore, didn't do that), and the other half was to see how convincing they were when they did do it.

 

Granted, I'm not paying for YouTube tutorials, but I feel that if you're going to provide that kind of thing, you should get it right.  So many people go to YouTube now that it's a huge vector/risk for misinformation...


It was delta mainline. The best was the engine failure during pushback. They pulled us back to the gate and were so clueless for 2h until they decided to change the plane. Pilot annoincement from a flight with apu not working: "oh I forgot to tell you that our apu is not working.we gonna start the engines at the gate." :)

 

Sounds like a blast.  So far, I've never had a plane go on maint.  The only aviation issue I've had was delays into sEWaRk.  In the end, I just told them I needed to get to IAD/DCA, so they just put me on a flight to DCA and avoided the whole issue altogether.

Kyle Rodgers

When I used to fuel jets at KACY, Spirit Airlines almost always ran off their APU's. In fact I don't ever recall seeing them plugged into a cart or jetway while I worked there. Same for the smaller jets that parked on the ramp away from the gate. 

Ian Kalter - ATP Multiengine / DHC8 ; EMB-145

Intel Core i7 6700K @ 4.7GHz ; 16 GB Corsair Dominator Platinum DDR4

ASUS Z170-Deluxe ; Nvidia GTX 1080 Ti
Samsung 950 Pro SSD x2, Samsung 850 Pro SSD ; Windows 10 Pro x64

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