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HAWK21M
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B757 PVD

Mon Jan 28, 2008 10:53 am

What exactly would be a PVD [Paravisual Display] on a B752.Or is it known by another common term?
As our freighters don't have it.
regds
MEL.
I may not win often, but I damn well never lose!!! ;)
 
Tristarsteve
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RE: B757 PVD

Mon Jan 28, 2008 11:36 am

It is a small strip fitted in the coaming in front of each pilot. It has rotating bars that provide directional guidance from the ILS for take off and landing.
It was introduced on the Trident by BEA in 1964 and has been fitted to many BEA and BA aircraft since. It was on the BA Tristar and B767 and B757 and was a requirement for Cat3B operation.
 
PhilSquares
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RE: B757 PVD

Mon Jan 28, 2008 12:22 pm

Quoting TristarSteve (Reply 1):
It was introduced on the Trident by BEA in 1964 and has been fitted to many BEA and BA aircraft since. It was on the BA Tristar and B767 and B757 and was a requirement for Cat3B operation.

It was an option on the 744 and it would cut the takeoff mins by 50% (IIRC). It was driven by the takeoff runway ILS and the trick was to keep the stripes from moving.

The PVD system consists of one PVD computer and two PVD indicators. The
PVD computer receives guidance commands from three FCCs. The FCC source
is selected with the FD/PVD source selector for the respective display.
Using the runway localizer tuned on the Navigation Radio page, the PVD provides
guidance to runway centerline during ground operations.


In practice, it was a terrible system and about 18 months ago SQ deactivated the system on the 744. It had no bearing on CATIIIB/C operations. It was merely for takeoff.

[Edited 2008-01-28 04:23:20]
Fly fast, live slow
 
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HAWK21M
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RE: B757 PVD

Tue Jan 29, 2008 9:17 am

Thanks for the Info.
Any accurate Article/link on this system with Pictures.
Also do Airlines still utilize it.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
Tristarsteve
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RE: B757 PVD

Tue Jan 29, 2008 9:51 am



Quoting HAWK21M (Reply 3):
Also do Airlines still utilize it.

It is still fitted to our aircraft. I will ask if they use it.
 
DL_Mech
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RE: B757 PVD

Tue Jan 29, 2008 11:10 am

IIRC, SR had the system on their MD-11's.
This plane is built to withstand anything... except a bad pilot.
 
Pihero
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RE: B757 PVD

Tue Jan 29, 2008 8:49 pm

Hey, People !
If you forget the queen of Cat III B,aka The Tristar, with her PVD, we won't be friends for very long, I can assure you, and I know of one 411 who would be mighty pizzed with you lot !
So correct this ASAP !
Before he arrives...  Big grin
Contrail designer
 
Tristarsteve
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RE: B757 PVD

Tue Jan 29, 2008 10:48 pm



Quoting Pihero (Reply 6):
If you forget the queen of Cat III B,aka The Tristar, with her PVD,



Quoting TristarSteve (Reply 1):
It was on the BA Tristar

OK
 
Pihero
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RE: B757 PVD

Wed Jan 30, 2008 12:37 am

Proof that I am a bloody fast reader, that does !

How could I have missed that , TristarSteve ?

Cheers !

(Maybe it was that GF wasn't mentioned and I was primed for it ! )
Contrail designer

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