Greetings all,

 

I've just started reading through my new 777 manuals, and have come across this term, usually refering to the freighter versions. What exactly is this?

 

Many thanks.

It is oxygen for people who are on the freighter, but not the active crew, example would be airline employes hitching a ride in the jump seats.

A supernumerary is an extra non-active crew member. So this would be oxygen for those sitting in the supernumerary area behind the flight deck.

 

Brian W

 

edit: Looks like Vladimir beat me to it. More details around the supernumerary compartment can be found in FCOM volume 2 part 1.47.

Thanks, guys. I've never heard that term before, and I actually work for an airline (sales/call center, not flight ops). This includes all of my years of flight simming. Learn something new every day!!

Aviation lawyers, famous for creating a word or acronym for every single thing, what, spare oxygen wasn't enough lol

Aviation lawyers, famous for creating a word or acronym for every single thing, what, spare oxygen wasn't enough lol

 

Supernumerary oxygen is less ambiguous. Spare oxygen could be oxygen for the pilots in case the normal oxygen runs out, or isn't accessible. Calling it supernumerary oxygen makes it clear exactly who it is meant for.

 

(Us aerospace engineers like making up words and acronyms too, can't let the lawyers have all the fun :P. On a more serious note, having more words means you can more narrowly define the meaning of each word, making your writing potentially less ambiguous, as long as everyone sticks to the accepted definition of each word of course).

Supernumerary oxygen is less ambiguous. Spare oxygen could be oxygen for the pilots in case the normal oxygen runs out, or isn't accessible. Calling it supernumerary oxygen makes it clear exactly who it is meant for.

 

(Us aerospace engineers like making up words and acronyms too, can't let the lawyers have all the fun :P. On a more serious note, having more words means you can more narrowly define the meaning of each word, making your writing potentially less ambiguous, as long as everyone sticks to the accepted definition of each word of course).

But ambiguous things are fun, just remember the series "'Allo, 'Allo" and the famous sentence:" I was aroused by the banging" :lol:

But ambiguous things are fun, just remember the series "'Allo, 'Allo" and the famous sentence:" I was aroused by the banging" :lol:

 

Sure, in comedies it's great. When you're designing a plane with 10,000 people spread over two dozen countries, for most of whom English is a second language.. not so much :) (Yes I do realise you were joking :)).

Speaking of ambiguous, I know it is offtopic, but I just couldn't help myself: