User avatar
Flying Belgian
Topic Author
Posts: 1910
Joined: Mon Jun 04, 2001 12:45 am

Another 737NG PFD Question.

Sun Feb 13, 2005 12:13 am

I've been browsing 737NG cockpit's pictures for a while now, and a question has always intrigued me:

What's the difference between the two ways to display the PFD on a 737NG ??


View Large View Medium
Click here for bigger photo!

Photo © Dario Crusafon - Iberian Spotters


View Large View Medium
Click here for bigger photo!

Photo © Javier F. Bobadilla - Iberian Spotters



Why did Boeing design it so ? Does an Airline decide to set definitly only in one way ?

I see AirEuropa pilots fly with both type of PFDs.

FB.



Life is great at 41.000 feet...
 
RightWayUp
Posts: 80
Joined: Wed Oct 10, 2001 5:40 am

RE: Another 737NG PFD Question.

Sun Feb 13, 2005 2:42 am

The one above is a new designed PFD and ND which originated from the 747-400. It is an easier and simpler display from a flying point of view. The lower one represents the older EFIS found on 737 3/4/500s and is used (in general) by airlines such as Southwest for commonality with the older variants thus reducing or nullifying initial training to fly the EG and NG.
 
User avatar
Flying Belgian
Topic Author
Posts: 1910
Joined: Mon Jun 04, 2001 12:45 am

RE: Another 737NG PFD Question.

Sun Feb 13, 2005 2:45 am

Can you switch from one to the other on all 737NGs ?

Thx,

FB.
Life is great at 41.000 feet...
 
AvionicMech
Posts: 308
Joined: Mon Jan 24, 2005 7:28 am

RE: Another 737NG PFD Question.

Sun Feb 13, 2005 5:17 am

FB

I cant be 100% certain because I have never converted one type of display to the other on a 737 but I am pretty sure that it would all be done by what is known as pin-programming. I know for sure this is how various items can be changed on the 757 EADI, which is the same as the PFD on the 737, such as changing the rad alt from a digital readout to a dial type reading for example. Another one that can be changed is the fast-slow indicator to a speed tape as shown in these pics just to the left of the artificial horizon on the top screen.


View Large View Medium
Click here for bigger photo!

Photo © Bruno David
View Large View Medium
Click here for bigger photo!

Photo © Jerry Search



Avionic Mech
 
LMP737
Posts: 5186
Joined: Wed May 08, 2002 4:06 pm

RE: Another 737NG PFD Question.

Sun Feb 13, 2005 8:18 am

Flying Belgian:

You can switch from one to the other by loading different software.
Never take financial advice from co-workers.
 
dl757md
Posts: 1483
Joined: Mon May 24, 2004 9:32 am

RE: Another 737NG PFD Question.

Sun Feb 13, 2005 2:57 pm

I am pretty sure that it would all be done by what is known as pin-programming.

As LMP737 has said it is a simple 5 minute OPC software load into each DEU(Dispaly Electronics Unit). There is pin programming on the DEUs but AFAIK it doesn't have anything to do with customer configuration options.

Dl757Md
757 Most beautiful airliner in the sky!
 
AvionicMech
Posts: 308
Joined: Mon Jan 24, 2005 7:28 am

RE: Another 737NG PFD Question.

Mon Feb 14, 2005 8:39 am

I wish it had been as simple as a software change on our 757 as we ended up having to take equipment racks out just to put in two or three wires which I am sure you guys would agree is very annoying. Its not the removal and doing of the job but all the functions that have to be done just because we needed to put a couple of wires in.  Angry
 
DeltaGuy
Posts: 3965
Joined: Wed Sep 12, 2001 5:25 am

RE: Another 737NG PFD Question.

Mon Feb 14, 2005 10:31 am

You can also reprogram to change Flight Director configuations...for instance, AA uses an 'inverted V' or double cue FD, whereas DL uses a 'double needles' or single cue FD....they could be re-programmed relatively easily if you were switching the aircraft over.

DeltaGuy
"The cockpit, what is it?" "It's the little room in the front of the plane where the pilot sits, but that's not importan
 
User avatar
HAWK21M
Posts: 30002
Joined: Fri Jan 05, 2001 10:05 pm

RE: Another 737NG PFD Question.

Mon Feb 14, 2005 12:24 pm

Its not the removal and doing of the job but all the functions that have to be done just because we needed to put a couple of wires in.
Look at it this way.....It wont be needed to be undone.A one time job  Smile
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
AvionicMech
Posts: 308
Joined: Mon Jan 24, 2005 7:28 am

RE: Another 737NG PFD Question.

Tue Feb 15, 2005 12:17 am

Mel,

That's funny, I have heard that said before though. It wont be needed to be undone, we have had a system called CONTRAN installed on our 757's for years, I don't know if you have seen it but it is a black box which basically stops any problems in case you get a stuck PTT switch. Well this system was so bad that we just ended up removing the box on every aircraft because it was causing VHF transmission snags. Well we have now started taking this CONTRAN system out and wiring the aircraft to use the in-built stuck microphone system in the VHF transceivers. So this proves there is no such thing as a 'one time job'. There is always something that needs changing, which is good because otherwise I might be out of a job. hahaha.  Big grin

Avionic Mech
 
User avatar
HAWK21M
Posts: 30002
Joined: Fri Jan 05, 2001 10:05 pm

RE: Another 737NG PFD Question.

Tue Feb 15, 2005 5:02 pm

There is always something that needs changing, which is good because otherwise I might be out of a job.
Very true.
But If theres no other routine work,I dont mind doing the "One time job" again  Smile
regds
MEL
I may not win often, but I damn well never lose!!! ;)

Who is online

Users browsing this forum: The3hadow, zaphod42 and 1 guest

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos