Author Topic: That Centre Seat again!  (Read 6405 times)

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Offline djrose007

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That Centre Seat again!
« on: January 27, 2014, 09:10:18 PM »
Sorry to harp on about this centre seat (Nav Plotter) but any idea why it is so different in construction to the AEO and N/Radar seats?
The others don't seem to have the big cuboid lump at the back, which contains a gas bottle which I think must be something to do with moving the seat backwards and maybe upwards in case of the need for quick evacuation - that is purely a guess, while the other two seats swivel.





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Offline deeleyt

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Re: That Centre Seat again!
« Reply #1 on: January 27, 2014, 10:49:20 PM »
All three of the seats are provided with the "booster" seat function. The two outer seat occupants Push back and the swivel their seats, then pull the release knob. The seat releases the harness straps and the back tilts forward (towards the front of the seat), at the same time the cushion inflates pushing the occupant to their feet. This leave the occupant in a nearly full standing position, ready to go.

The centre seat, being not able to rotate, had to be fully slid back, and then the release operated, (if done too soon it would trap the occupant between the seat and the table)

The difference in the seat configuration is due to the fact that the Nav Plotters parachute pack is integrated with the survival kit, as against the Nav Radar and AEO who are sitting on their Survival kit and the parachute separate on their back.

Offline djrose007

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Re: That Centre Seat again!
« Reply #2 on: January 27, 2014, 10:53:42 PM »
Thanks Deeleyt, that's a great explanation. I'd heard about the booster cushion but wasn't sure how it worked. I've removed the bottom part of the centre seat and replaced it with hard foam because it is so uncomfortable at the moment. Can't use a dummy survival pack, which I thought was missing, because it is pushed right forward to make access up the crew ladder easier for the visiting public, some of which are considerably larger that a normal Vulcan crew would be!!!

Thanks again.
Dave
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Offline Sad Sam

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Re: That Centre Seat again!
« Reply #3 on: January 27, 2014, 10:56:41 PM »
All three seats have the assistor cushion to help the crew to stand up with the parachute and P.S.P. (personal survival pack).

The cushion is "fired off" by the black and yellow knob on the side of the seat (never play with anything black and yellow)

The plan for the Nav Rad and the AEO was to spin the seat round so they faced the door and then (if the jet was for instance pulling a lot of "G") they would pull the knob and the cushion was inflated by high pressure air from the bottle in the seat (a sort of reverse whoopy cushion  :D) - good game, good game!

The plan for the Nav plot was to slide the seat as far away from the desk as it would go and then use the cushion.  Common wisdom was that it would be better to leave the high pressure air in the bottle as there seemed to be a better than average chance that the inflated cushion would jam your legs in to the table (not such a good game)
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Offline deeleyt

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Re: That Centre Seat again!
« Reply #4 on: January 27, 2014, 11:18:04 PM »
David - I know how much space there is around the Plotter seat, as one of my favorite panels is right in front of the Plotters seat, and I am nowhere as nimble as I was 38 years ago. Although most of the kit I worked on was LH rear (RADAR/Radio)

Offline djrose007

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Re: That Centre Seat again!
« Reply #5 on: January 28, 2014, 08:37:08 AM »
Thanks Sam and Deeleyt, all of this adds to the knowledge of the XM569 team and really enhances the visitors experience. We are learning all the time and visitors are constantly telling us how impressed they are with being able to go into the cockpit and learn about it, and the cold war days.
Thanks very much for your help, very much appreciated as always.
Dave
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