I found something worrying while perusing the http://www.flyertalk.com/forum/briti...on-thread.html and the A380 seat plan.

The upper deck of the A380 has 53 CW seats and 3 toilets. That's 16.7 passengers per loo (PPL).

Within that, the rear UD cabin on the A380 UD has only 1 toilet for the entire cabin - that's a hefty 28 PPL.

How does this compare with the rest of the fleet, I hear you ask?

I'm having a slow day. Here's a breakdown:

And the 380:

What's the take-home message? For me, it's that CW on the A380 overall has a not-terribly-great ratio compared with the rest of the fleet, but the loos are extremely unevenly distributed.

Bearing in mind that the UD and LD CW cabins are essentially completely separate, the overall ratio on the A380 upper deck is worse than any other cabin, or any other aircraft overall. And the problem is particularly bad in the UD rear cabin.

To me this means long queues at busy times and, in particular, a high chance of disruption for pax choosing the "best" front cabin seats in the upper deck, whose 2 toilets are the major provision for 53 passengers.

The maths changes if the F toilets down the front stairs are expected to be used by CW passengers (which seems unlikely).

For comparison, the Qantas A380 upper deck has 64 seats and 4 loos in J (16 PPL).

Clearly I have spent too much time looking into this, but am I right to be concerned?

You could always use a bottle a la G�rard Depardieu !

Scrub that. Misread 'rear cabin' as meaning WT.

Time will tell - but it's not hard to see those numbers becoming a problem.

It only takes a few people taking longer than average causing real delays.

Upper deck, rear CW cabin - 1 toilet. What am I missing?

There may be graphical error on the lower deck seat map



The four wcs at the rear of the Club cabin appear as allocated to WT whereas I gather they are actually allocated to Club. Is this correct?

On each aisle there is one WT+ and one CW toilet at the meeting point of the lower deck classes. There is a cunning curtain arrangement which goes over at an angle to divide up the toilets accordingly by row 15. Which means those in the know will be able to upgrade or downgrade their toiletry experiences, since it would be difficult to police.

So going by the door opening positions the middle 2 toilets by row 15 would appear to be the CW toilets and the outside ones for WT. Is that right CWS ?

It's really not hard to go for a stroll forward or back to find an empty loo. You are actually allowed to walk past the galley btw.

Obviously but not from Y to J.

I was just trying to ascertain the correct layout as I think it is important, out of consideration for my fellow CW passengers, I use the CW toilets for a No.1 but def the Y toilets for a No.2. .....

But the OP specifically highlighted that 28 passengers in upper J only have one loo. They don't, they have three to choose from without leaving business class.

I think it's the other way around (I've been on so many planes in the last 10 days they're starting to merge!), despite the way it looks on the plan. And I think that is just as well since 15A and 15K would otherwise have a line of sight into the toilet, but instead will be modestly protected by the blue curtain. So if I'm right, if you were to shift the blue hatching on the map downwards a few millimetres so that the toilets on the window side are inside CW-land (and the centre toilets outwith) then that would be a more accurate depiction.

Indeed, and apologies as I was straying from the OP's point.

Got it now I think. Thanks. ^

I think what was meant was that the rear-most J cabin upstairs only has one loo for 28 passengers. The other two loos are forward of the front cabin and thus require a somewhat larger middle of the night stumble in search of relief than in existing cabin configurations.

Anyone who finds walking past a galley and four rows of seats to reach a second toilet a problem should probably travel in F.