CRJ900 From Norway, joined Jun 2004, 2081 posts, RR: 1 Posted (8 years 2 months 3 weeks 9 hours ago) and read 1422 times:
I have noticed on CO and AS seat maps that they have mid-cabin lavs on some of their 738 and 739s, and it looks like a novel idea, stopping the Y riff-raff from using the precious F lav up front.
But from a technical perspective, does installing a mid-cabin lav require lots of maintenance and reworking of cargo space, underfloor wiring etc etc, or is it a fairly easy thing to do, so that CO and AS can install or remove mid-cabin lavs without too much fuss?
Tod From Denmark, joined Aug 2004, 1687 posts, RR: 3 Reply 1, posted (8 years 2 months 3 weeks 2 hours ago) and read 1252 times:
I don't think it would be tough at all.
The forward lav vacuum waste plumbing should be going right past that area anyway.
Sink drain and potable water might take a bit of design effort, but nothing earth-shattering. I haven't looked yet, does the 738 and 739 have just the one aft drainmast, or did they add another one for the mid area. That would simplify the drain routing.
Lav wiring comes from above and should not be an issue.
If it's located over the wingbox, the floor structure changes should be minimal.
Zero impact on cargo capacity.
Maintenance should not differect than any other modern lav.
IFixPlanes From Germany, joined Feb 2005, 238 posts, RR: 0 Reply 2, posted (8 years 2 months 3 weeks ago) and read 1196 times:
Quoting Tod (Reply 1): Sink drain and potable water might take a bit of design effort, but nothing earth-shattering. I haven't looked yet, does the 738 and 739 have just the one aft drainmast, or did they add another one for the mid area
The sink drain related to the forward Toilet is located a few feet forward of main wheel well. So I think it´s no big deal to install a additional Toilet in the mid area.