Differences between 321s and 322s

[straller]

Hello everyone,

Can anyone tell me the differences between Classes 321 and 322?

 

[northwichcat]

The 322s are just 321s which were specifically built for Airport services so originally had a different internal layout.

 

[straller]

Has the interior layout changed since then? Is it the same as the 321 now? How was the original interior different from the 321's?

 

[northwichcat]

Original 322 interior: http://en.wikipedia.org/wiki/File:322485_Standard_Class_Interior.JPG

Current 322 interior: http://www.scot-rail.co.uk/photo/scaled/316.jpg

And a 321/9 interior in comparison: http://www.shadowlifemedia.co.uk/ke...5950_gfvw4sL#!i=1412654941&k=2xjp5cB&lb=1&s=A

 

[zn1]

the internal layouts -

321 - medium density passenger seating layout.....

322 - 481-485 had an airport user friendly interior. luggage racks, carpets as standard when new....as i recall when 481 arrived at ilford and i had a peek in her she and her sisters was quite chic units for the great eastern...making 321 look shabby, that was back in 1989 though....

 

[starrymarkb]

IIRC it was considered that the 322s would be renumbered as 321s when they lost their Airport interiors. In the end it was considered too much bother for no gain. SR were not SWT

 

[theblackwatch]

IIRC it was considered that the 322s would be renumbered as 321s when they lost their Airport interiors. In the end it was considered too much bother for no gain. SR were not SWT

Yes, the 322s were going to become Class 321/5 - for some reason it never happened though.

 

[samuelmorris]

On a really pedantic sidenote, why 321/9 originally and not 321/5 for those?
That said, why 321/3 and 321/4 instead of 321/0 and 321/1?

Also, the current 322 interior is pretty vibrant - the red 321/9 is much easier on the eye IMO. Still, I can see why they changed the original interior - while I can see what they were going for with the stansted express at the time, that colour scheme would look very dated now, even in an as-new condition. I think the standard NSE blue flash aged better.

 

[straller]

Nobody has ever said that subclasses must begin with /0 and be in order. Also, sometimes the 4th (or 2nd in the Southern Region) is not the same as the subclass number e.g. the 317/1s start with 317301.

 

[zn1]

hey numbering sequences issued by the RSL,
units at depot level would be referrred by their last 3 numbers, it made sure that units were not confused, u could have several 001 sets,

Example - i started at ilford tech office in the level 5 I had to learn the different classes - i knew their TOPS id's, not their local ids, LTS units - 302s, clactons - 309, 307 - southenders. etc, also had to learn their last prefix numbers and their class code..my first 2 months at Ilford in technical services was a hard learning curve.

it got easier and quicker as it got on

the newer fleets that ilford took on used their full number, as the older fleets were switched off, full unit numbers have become the norm.


they were also subtle differences in the seating layouts - 321/4 had a bigger first class.
hence 321/3 - 301-366,
321/4 - 401-448
321/9- 901 onwards
322/4 481-485 to avoid confusion with the 321/4 series

its all about in many cases local knowledge, not confusing units with each other,

 

[shedman]

Technically the 322s have a couple of isolating cocks in different places and the CET tank has a little heating element in to prevent the waste from freezing.

In the cab the 322s have a couple of additional DSD holdover buttons (compared to the 321/9) and a doors close button at a lower level to the panel.

In the saloon there in a cupboard under the seats which contains an isolating cock, on the 321s its opened with a T key but sealed on the 322s.

These are all differences between 321/9s and 322s. There maybe more that I can't remember! Hope it helps.

 

[straller]

Thank you very much for all the info!

 

[Surreyman]

Technically the 322s have a couple of isolating cocks in different places and has the CET tank has a little heating element in to prevent the waste from heating.

In the cab the 322s have a couple of additional DSD holdover buttons (compared to the 321/9) and a doors close button at a lower level to the panel.

In the saloon there in a cupboard under the seats which contains an isolating cock, on the 321s its opened with a T key but sealed on the 322s.

These are all differences between 321/9s and 322s. There maybe more that I can't remember! Hope it helps.

You refer to the CET tank, didn't realise 322 units had CET, was this because of the tunnel at Stansted? Are the CET tanks still used?
I am under the impression that none of the 321s are fitted with CET, can you confirm?

 

[badassunicorn]

none of the 321's on the GEML have waste tanks

 

[jopsuk]

The 317s on the WAML don't either, including the Stansted Express conversions.

 

[shedman]

The 321/9s have a CET tank too. I'm not sure if they're as built or added at a later date. The 322s have a 'tank full' light behind one of the mirrors in the toilet. The tanks are used yeah and are huge compared to the 158s. I meant to say the tank has a heating element to stop the waste from freezing, I said heating so I've edited it!

 

[The_Stig]

You could always smell a 322 before you could see it!