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Is 31" Pitch The Magical No. For Lavs Too?  
User currently offlineCRJ900 From Norway, joined Jun 2004, 2234 posts, RR: 1
Posted (8 years 5 months 2 weeks 4 days 11 hours ago) and read 4649 times:
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I get the impression that economy class seat spacing of 31 inch pitch is the most commonly used in the airline world, both for mainline and LCC airlines.

Having used the lavs on several 737NGs during the last six months, I find that the lavatories seem tighter width-wise than on older aircraft, and I know that I am not wider (body wise) now than I was five years ago...

I thought that with todays' great new materials, lavs would perhaps be wider as walls can be thinner yet still as strong as older and thicker walls.

Do manufacturerers and airlines now prefer their lav modules to be max 31 inches wide so that they can easily replace them with a row of seats or vice versa without having to alter the placement of the other seat rows?


Come, fly the prevailing winds with me
21 replies: All unread, jump to last
 
User currently offlineDeltaGator From United States of America, joined Sep 2005, 6341 posts, RR: 13
Reply 1, posted (8 years 5 months 2 weeks 4 days 11 hours ago) and read 4622 times:

Quoting CRJ900 (Thread starter):
Do manufacturerers and airlines now prefer their lav modules to be max 31 inches wide so that they can easily replace them with a row of seats or vice versa without having to alter the placement of the other seat rows?

Perhaps but I think it is to crack down on folks joining the Mile High Club. I'm by no means tiny but I think the only folks who could ever hook up in the lav are a couple of midgets. That might even be an untapped porn market...midget sex on planes. Oohh! I think I just came up with the sequel to "Snakes on a Plane" coming out soon.

Seriously though I would imagine the airlines just try to maximize their space but whether or not it is to be able to reserve the space for seats later on I don't know. If you can fit into a 17" wide seat with 31" of pitch then you can fit in the lav.



"If you can't delight in the misery of others then you don't deserve to be a college football fan."
User currently offlineTod From Denmark, joined Aug 2004, 1734 posts, RR: 3
Reply 2, posted (8 years 5 months 2 weeks 4 days 11 hours ago) and read 4591 times:

Quoting CRJ900 (Thread starter):
Do manufacturerers and airlines now prefer their lav modules to be max 31 inches wide so that they can easily replace them with a row of seats

Haven't seen that yet.

A quick review of 747 and 777 lav installations drawings on my desk turned up lav widths varying from 36 to 56 inches.

Tod


User currently offlineAF1624 From France, joined Jul 2006, 665 posts, RR: 0
Reply 3, posted (8 years 5 months 2 weeks 4 days 11 hours ago) and read 4560 times:

I don't really spend much time in the lavatory so I can't tell Big grin

But more seriously, does the airline have anything to do with this, or is it only the manufacturer's choice ?



Cheers
User currently offlineMax999 From United States of America, joined Dec 2005, 1086 posts, RR: 0
Reply 4, posted (8 years 5 months 2 weeks 4 days 11 hours ago) and read 4539 times:

A lot of newer widebodies that I have been on have handicap accessible toilets. They are significantly larger than regular toilets.

I'm not sure if any single aisle planes have handicapped toilets. Would they be even possible, consider the lack of space?



All the things I really like to do are either immoral, illegal, or fattening.
User currently offlineTheSorcerer From United Kingdom, joined Oct 2005, 1048 posts, RR: 0
Reply 5, posted (8 years 5 months 2 weeks 4 days 10 hours ago) and read 4529 times:

Quoting DeltaGator (Reply 1):
That might even be an untapped porn market...midget sex on planes. Oohh! I think I just came up with the sequel to "Snakes on a Plane" coming out soon.

 rotfl   rotfl 

I haven't been on a 737NG but i can say that the 732 toilets are quite big compared to the A320s toilets. That brings me to remember how challenging it was to take a piss in an A320 lav, while the A/C was climbing and going through turbulence, it took me a couple of seconds to work out a strategy, but at the end it was a job well done. Big grin

Dominic



ALITALIA,All Landings In Torino, All Luggage In Athens ;)
User currently offlineTod From Denmark, joined Aug 2004, 1734 posts, RR: 3
Reply 6, posted (8 years 5 months 2 weeks 4 days 10 hours ago) and read 4513 times:

Quoting AF1624 (Reply 3):
But more seriously, does the airline have anything to do with this

Definately.

Tod


User currently offlineHPRamper From United States of America, joined May 2005, 4152 posts, RR: 8
Reply 7, posted (8 years 5 months 2 weeks 4 days 10 hours ago) and read 4491 times:

Quoting TheSorcerer (Reply 5):
I haven't been on a 737NG but i can say that the 732 toilets are quite big compared to the A320s toilets.

The aft lavs in our A320 and A319 aircraft are roomier than the ones up front in FC. I'm only 5'9" and I feel positively cramped trying to use the forward lav. I really have no idea why first class has a smaller one.


User currently offlineGeo772 From United Kingdom, joined Jul 2004, 519 posts, RR: 0
Reply 8, posted (8 years 5 months 2 weeks 4 days 10 hours ago) and read 4491 times:

On a modern aircraft the operator has an enormous amount of flexxibility over where toilets and galleys are located as well as how many of each there are.

One of the main considerations is that toilets don't earn money EVER. Galleys certainly do on LCC for food and drink and every other one for 'duty free' sales.

In terms of space within a toilet many carriers give their First class passengers a little more space, but not much, as well as different furnishings as well, even a window with an LCD blind in the case of the forward toilet on BAs 747s.

Easyjet was able to remove a standard fit toilet from their aircraft and fit an extra 3 seats, which on short flights doesn't really matter - heres hoping for their passengers that they don't branch into longhaul.



Flown on A300B4/600,A319/20/21,A332/3,A343,B727,B732/3/4/5/6/7/8,B741/2/4,B752/3,B762/3,B772/3,DC10,L1011-200,VC10,MD80,
User currently offlineTheSorcerer From United Kingdom, joined Oct 2005, 1048 posts, RR: 0
Reply 9, posted (8 years 5 months 2 weeks 4 days 4 hours ago) and read 4302 times:

Quoting HPRamper (Reply 7):
I really have no idea why first class has a smaller one.

The bastards up there have huge amounts of space, it's just to make them think about the poor coach pax. Big grin

Dominic



ALITALIA,All Landings In Torino, All Luggage In Athens ;)
User currently offlineExFATboy From United States of America, joined Jul 2003, 2974 posts, RR: 9
Reply 10, posted (8 years 5 months 2 weeks 4 days 1 hour ago) and read 4187 times:

Quoting DeltaGator (Reply 1):
Oohh! I think I just came up with the sequel to "Snakes on a Plane" coming out soon.

"Trouser Snakes On A Plane"

sorry, couldn't resist...  Silly


User currently offlineFlyingColours From United Kingdom, joined Dec 2003, 2315 posts, RR: 10
Reply 11, posted (8 years 5 months 2 weeks 3 days 16 hours ago) and read 4004 times:

Quoting HPRamper (Reply 7):
The aft lavs in our A320 and A319 aircraft are roomier than the ones up front in FC. I'm only 5'9" and I feel positively cramped trying to use the forward lav. I really have no idea why first class has a smaller one.

Perhaps its because or the curvature of the aircraft?, you know like how close the FWD toilet actually is to the front of the aircraft so the cabin is still getting wider, I hope someone understands how I put that.

Now that you mention it the FWD lavs on the A320 are cramped, but that never bothers me - I only go in there to check everything is still ok.

The 757 lavs are fairly wide but I have seen them moved around when a/c have gone for a complete refitting following change of operators.

Phil
FlyingColours



Lifes a train racing towards you, now you can either run away or grab a chair & a beer and watch it come - Phil
User currently offlineRoseFlyer From United States of America, joined Feb 2004, 9828 posts, RR: 52
Reply 12, posted (8 years 5 months 2 weeks 3 days 14 hours ago) and read 3922 times:

Quoting TheSorcerer (Reply 5):
That brings me to remember how challenging it was to take a piss in an A320 lav, while the A/C was climbing and going through turbulence, it took me a couple of seconds to work out a strategy, but at the end it was a job well done.

Normally the seat belt sign would be on if the A/C is climbing and going through turbulence. You shouldn't be up anyway, so there is no reason for the lavatory to be designed to accomodate someone bouncing around in there.



If you have never designed an airplane part before, let the real designers do the work!
User currently offlineContinentalFan From United States of America, joined Oct 2000, 357 posts, RR: 0
Reply 13, posted (8 years 5 months 2 weeks 3 days 14 hours ago) and read 3905 times:

Quoting RoseFlyer (Reply 12):
Normally the seat belt sign would be on if the A/C is climbing and going through turbulence. You shouldn't be up anyway, so there is no reason for the lavatory to be designed to accomodate someone bouncing around in there.

More than once, I've gone to the lav, and then just as I'm about to do my business, ding-ding, the fasten seatbelt sign goes on. Or, sometimes, when you gotta go, you gotta go, especially on a narrowbody, when there are only so many times the food/drink cart isn't going down the aisle or people are eating/drinking.


User currently offlineLegoguy From United Kingdom, joined Jun 2006, 3314 posts, RR: 39
Reply 14, posted (8 years 5 months 2 weeks 3 days 14 hours ago) and read 3905 times:

Sorry to ask the dumb question...but what is seat pitch? Is the the space that one seat and passenger takes up lengthwise, or is it the width of the seat?


Can you say 'Beer Can' without sounding like a Jamaican saying 'Bacon'?
User currently offlineDeltaGator From United States of America, joined Sep 2005, 6341 posts, RR: 13
Reply 15, posted (8 years 5 months 2 weeks 3 days 11 hours ago) and read 3833 times:

Seat pitch is the amount of space from a single point on a seat to the same point on the seat in front or back of the referenced seat. As an example take the front of your seat back and then measure the length to the same spot on the seatback in the row in front of you. That is seat pitch and 31" is pretty crappy.


"If you can't delight in the misery of others then you don't deserve to be a college football fan."
User currently offlineYYZYYT From Canada, joined Apr 2005, 999 posts, RR: 0
Reply 16, posted (8 years 5 months 2 weeks 3 days 11 hours ago) and read 3809 times:

Quoting DeltaGator (Reply 1):
Seriously though I would imagine the airlines just try to maximize their space but whether or not it is to be able to reserve the space for seats later on I don't know. If you can fit into a 17" wide seat with 31" of pitch then you can fit in the lav.

try taking a 3 year old to go pee pee on a 737! not fun.


User currently offlineLegoguy From United Kingdom, joined Jun 2006, 3314 posts, RR: 39
Reply 17, posted (8 years 5 months 2 weeks 3 days 9 hours ago) and read 3759 times:

Quoting DeltaGator (Reply 15):

Ahh just as I thought. Thanks for your help  Smile



Can you say 'Beer Can' without sounding like a Jamaican saying 'Bacon'?
User currently offlineTod From Denmark, joined Aug 2004, 1734 posts, RR: 3
Reply 18, posted (8 years 5 months 2 weeks 3 days 7 hours ago) and read 3706 times:

Quoting Geo772 (Reply 8):
even a window

Lav windows are fun.
Gotta keep your eye on the target and not let the moving clouds influence your aim.

Tod


User currently offlineCRJ900 From Norway, joined Jun 2004, 2234 posts, RR: 1
Reply 19, posted (8 years 5 months 2 weeks 3 days 5 hours ago) and read 3646 times:
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So, how wide are the average lavatories on 737NG and A320 Family then? 32-36 inches wide or something like that?


Come, fly the prevailing winds with me
User currently offlineTheSorcerer From United Kingdom, joined Oct 2005, 1048 posts, RR: 0
Reply 20, posted (8 years 5 months 2 weeks 3 days 5 hours ago) and read 3639 times:

Quoting RoseFlyer (Reply 12):
Normally the seat belt sign would be on if the A/C is climbing and going through turbulence.

The seat belt sign wasn't on, if it was i would have been in my seat.

Dominic



ALITALIA,All Landings In Torino, All Luggage In Athens ;)
User currently offlineFlyDreamliner From United States of America, joined Jan 2006, 2759 posts, RR: 15
Reply 21, posted (8 years 5 months 2 weeks 3 days 5 hours ago) and read 3635 times:

Quoting TheSorcerer (Reply 5):
I haven't been on a 737NG but i can say that the 732 toilets are quite big compared to the A320s toilets. That brings me to remember how challenging it was to take a piss in an A320 lav, while the A/C was climbing and going through turbulence, it took me a couple of seconds to work out a strategy, but at the end it was a job well done. Big grin

What is it about the A320/319 and turbulance? I've found this too, it makes using the bathroom almost like a game.... the poor poor folks who clean those planes.

I was in the bathroom on a NW Airlink A340 from Memphis to Huntsville once when we flew through some severe thunderstorms. I kid you not when I tell you I was half convinced my pee was about to come flying up at me.

I've noticed that the old Dc-9 lavs and even 752 lavs are better than the A320/738 ones. Bad trend.



"Let the world change you, and you can change the world"
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