Earlier in this thread there was an interesting discussion on emergency depressurisation. During the rapid descent I would guess that the FE would be very busy find out "what was what" etc.
Well never having done this set of drills for real, I can only give the experience from the sim, which is never the same as the real aircraft, however with this set of problems there is a big difference between sim and aircraft and that is if for real on the aircraft you might have to cope with pressure breathing, whereas on the sim the mask was just on demand.
Pressure breathing we had to practise on a special little rig at the training base at Heathrow under medical supervision every two years {I think}. Even on this rig we did not get full pressure breathing but sufficient for us to experience what it would be like. Whilst we were on this rig they would ask us to read from a checklist, and it was then you realised how hard it would be in real life.
Normal breathing means you have to use muscle power to inhale and you relaxe to exhale, and luckily for most of us we do not have to think about doing it. However on pressure breathing you are blown up by the pressure and you have to concentrate to stop the pressure air coming in. To exhale you had to use muscle power to push the air out and whilst you were doing this you could speak. Normally a couple of you did it at a time so you could see the affect it had on your buddy who normally went red in the face and the veins started to show up.
All in all I found it quite a tiring experience
So, if the crew were in an emergency descent due to pressurization failure there would be the Depressurization drill, the emergency descent drill and the normal checklist to fit in, while trying to control your breathing and speak as you were trying to force the air out of your lungs. Along with this trying despaeratly to keep switching your intercom off so the pilots could use the R/T otherwise the sound of your breathing deafened everything
As checklist work was carried out by the F/E he could initially be quite busy so the pilots would start the fuel fwd transfer with a switch on the over head panel. However this was quite a rough and ready system so as soon as the F/E could find time he would use his panel switches to transfer the fuel. These switches allowed more flexibility as to where the fuel would go.
That is why it was mandatory for F/E to have two legs as if he only had one there would have been no where to rest all the checklist he might be running at the same time
Sorry about the length, and her in doors is now demanding my attention ,
{just to do some work or other } so I will come back to the subject of the course later