PPRuNe Forums - View Single Post - Qantas 744 Depressurisation
View Single Post
Old 1st Aug 2008, 08:41
  #850 (permalink)  
pacplyer
 
Join Date: Nov 2006
Location: Asia
Posts: 183
Likes: 0
Received 0 Likes on 0 Posts
Thanks Machaca.

I missed your post
BUT.....

It's not an oxygen cylinder if I read your link correctly. The pic on page 13 is a completely different animal: a (machined out of solid bar stock) metal relatively Low pressure (1000 psi IIRC) back up to normal 2000-3000 psi hydraulics (IIRC generally speaking)

Hydraulic accumulator information
There are two hydraulic accumulators located under
the BAe 146 fuselage floor close to the main landing
gear installation and inside the pressure hull, and these
are fitted so that the hydraulic system can cope with
fluctuations in demand. The accumulator consists of a
pressure cylinder with a piston inside. On one side of
the piston is hydraulic fluid and on the other is nitrogen,
nominally at 1,000 psi.
That's how I read it anyway. Are Metal O2 tanks stamped out of thick sheets and then welded at the neck? Not sure.

Machaca, great photos; you are one of the best contributors to this thread thanks.

Last edited by pacplyer; 1st Aug 2008 at 08:56. Reason: added thumbs up
pacplyer is offline