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readytotaxi
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What's That In The Ceiling?

Sun Jun 22, 2008 4:25 pm

Please, why a projector,if that is what it is, in the ceiling when all the seats have screens?
Am I missing something?
Thanks

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LHRBFSTrident
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RE: What's That In The Ceiling?

Sun Jun 22, 2008 5:15 pm

I think the safety demo still has to played on overhead screens, so if any of the PTVs are u/s the pax still get to see the demo...
 
tdscanuck
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RE: What's That In The Ceiling?

Sun Jun 22, 2008 5:16 pm



Quoting Readytotaxi (Thread starter):
Please, why a projector,if that is what it is, in the ceiling when all the seats have screens?

That sort of projector hasn't been installed for years. Seats with PTV's that large are only recent. So we can make a pretty good guess that those seats were fitted long after the aircraft was originally built.

It was probably less work to leave the projector in place when the refit the cabin than to remove it.

Tom.
 
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readytotaxi
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RE: What's That In The Ceiling?

Sun Jun 22, 2008 5:17 pm



Quoting LHRBFSTrident (Reply 1):

Thanks, I guess they have similar further back in the main cabin.
you don't get a second chance to make a first impression!
 
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readytotaxi
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RE: What's That In The Ceiling?

Sun Jun 22, 2008 5:47 pm



Quoting Tdscanuck (Reply 2):

Yep, that makes sense, thanks.
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HAWK21M
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RE: What's That In The Ceiling?

Tue Jun 24, 2008 9:03 am



Quoting Tdscanuck (Reply 2):
It was probably less work to leave the projector in place when the refit the cabin than to remove it.

Why,Is the Attachment complicated?
regds
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Starlionblue
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RE: What's That In The Ceiling?

Tue Jun 24, 2008 11:17 am

It might be that they removed the projector but left the housing. Otherwise they would have needed a new ceiling panel unless they wanted to leave a gaping hole.
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
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HAWK21M
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RE: What's That In The Ceiling?

Tue Jun 24, 2008 3:03 pm



Quoting Starlionblue (Reply 6):
It might be that they removed the projector but left the housing. Otherwise they would have needed a new ceiling panel unless they wanted to leave a gaping hole.

Likely that the Projector if not used would be removed to save on the weight.
regds
MEL
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tdscanuck
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RE: What's That In The Ceiling?

Wed Jun 25, 2008 5:31 am



Quoting HAWK21M (Reply 5):
Quoting Tdscanuck (Reply 2):
It was probably less work to leave the projector in place when the refit the cabin than to remove it.

Why,Is the Attachment complicated?

I doubt it, but you're making a change to the certified aircraft configuration. That means somebody needs to write a service bulletin (time and money) or an engineering order (time and money), get it certified (much more time and money), then do the work. For the few pounds it may weigh, it might not be worth it.

Tom.
 
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HAWK21M
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RE: What's That In The Ceiling?

Wed Jun 25, 2008 9:00 am

Wonder how much weight would be saved by removing the Projector unit.
regds
MEL
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Starlionblue
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RE: What's That In The Ceiling?

Wed Jun 25, 2008 9:15 am

I don't know about the specific units in aircraft but those old fashioned "3 cannon" CRT projectors weigh in at somewhere between 25 and 125 kg. Quite a difference compared to a recent LCD projector.

The mount itself probably weighs a bit too if it has to support those kinds of weights up to 4g or whatever.
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AA737-823
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RE: What's That In The Ceiling?

Wed Jun 25, 2008 10:10 am



Quoting Tdscanuck (Reply 8):
I doubt it, but you're making a change to the certified aircraft configuration.

You're kidding, right?
Cabin furnishings are optional- as such, the aircraft is certified to fly both with and without. They'd have to file that the equipment was removed, but the governing authority in whatever country probably has a field representative that would glance over the paperwork and have this deal done in minutes.
 
tdscanuck
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RE: What's That In The Ceiling?

Wed Jun 25, 2008 10:32 pm



Quoting AA737-823 (Reply 11):
Quoting Tdscanuck (Reply 8):
I doubt it, but you're making a change to the certified aircraft configuration.

You're kidding, right?

It's still a configuration change. The type is certified with or with furnishings, but for any particular aircraft the built-in furnishings are part of the drawing set. I agree the change is pretty trivial but you can't just yank it out without having certified paperwork to allow it.

Tom.

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