Class 465/466 Networker EMU - Tech specs - Wheel Diameter / Bogie Size

[JackDavis16]

I'm looking for any technical specifications for the Class 465 or 466 Networker EMUs.

Specifically I can't find any information on the wheel diameter or the size of the bogie or the clearance from the rails to the underside of the main bodywork.

 

The NSE years website has some limited schematics but is missing these measurements.

 

Currently for my model I am assuming a 3'6" motor wheel and 8'9" bogie size with a 3'9" clearance but I would like to be more accurate.

[Wickham Green too]

I don't think any British coaches have had 3'6'' wheels since the MkIIs appeared - more likely to be 3' or thereabouts .......... though the nominal size'll be metric, of course !

[JackDavis16]

Thanks, that would make more sense. Do you think the 465 would be similar to the Wessex 442 with a 1040mm floor height?

[Wickham Green too]

The 442 is an interesting case as it used second hand traction equipment from the 4REPs : while the motor bogies were new, the motors themselves weren't and the drawing in 'British Rail Fleet Survey 10' suggests the driving wheels might have been 3'6''-ish contrary to what I said above. Otherwise these were more or less bog-standard MkIIIs and would have had a floor height compatible with their MkII & Mk1 predecessors.

The Networkers are a completely different design - but I have no doubt they were specified to have a similar floor height ..... but, perhaps, with a desire to provide a lower step !!?! ( the class 508 drawing shows a floor height of 1156mm which is 5&1/2'' lower than that of a MkII ).

[BernardTPM]

The Networkers have BREL series 3 bogies (as do the 442 trailers) so the wheelbase is 2600mm (roughly a metric 8' 6"). In Networkers the wheels are 840mm dia. which is about 2' 9".

Edited March 2, 2021 by BernardTPM

[JackDavis16]

3 hours ago, BernardTPM said:

The Networkers have BREL series 3 bogies (as do the 442 trailers) so the wheelbase is 2600mm (roughly a metric 8' 6"). In Networkers the wheels are 840mm dia. which is about 2' 9".

Thanks for the information, just what I needed!

[cheesysmith]

Also, the 442 reusing old motor equipment would have either new wheels (the EMU motor bogie as used under different AC EMUs) with 3` (well, metric equivalent), or the old 3`3". Until the AC drive EMU came, BR standard was 3`3" wheels on a 8`9" motor bogie. The 317 upwards used 3` wheel on a 8`9" motor bogie with smaller wheels used with the unmotored bogies and 8`6" wheel base.

[TravisM]

Regarding the 465 and 466 Networkers, be careful as between the BREL built Class 465’s (465/0 and 465/1) and the Metro-Cammell units (465/2’s and 466’s)  as there are a number of detail differences between the two builders.

 

They were supposed to be interchangeable regarding spare parts etc, but just look at the difference’s between the below the solebar electrical equipment access hatches.  There are internal differences as well, as well as ventilation.

 

I’ve attached several pictures taken by me in 2009, so hopefully they are of some use.

 

 

[Wickham Green too]

I'm not sure whether they've all got the same undergubbins now but the BREL units certainly had new equipment fitted a number of years ago  -  and large chunks of the fairings disappeared in the process.

[JackDavis16]

On 04/03/2021 at 20:12, jools1959 said:

Regarding the 465 and 466 Networkers, be careful as between the BREL built Class 465’s (465/0 and 465/1) and the Metro-Cammell units (465/2’s and 466’s)  as there are a number of detail differences between the two builders.

 

They were supposed to be interchangeable regarding spare parts etc, but just look at the difference’s between the below the solebar electrical equipment access hatches.  There are internal differences as well, as well as ventilation.

 

I’ve attached several pictures taken by me in 2009, so hopefully they are of some use.

Thanks for the pictures, really shows the diversity of units within the class.

Do you think it's possible the differences extend to wheel size and wheelbase?

[TravisM]

28 minutes ago, JackDavis16 said:

Thanks for the pictures, really shows the diversity of units within the class.

Do you think it's possible the differences extend to wheel size and wheelbase?

I’m pretty sure that the bogies, including the axles and wheel diameters would have been made to match all the 465’s and 466’s as I think they were one of the few things that were interchangeable.

[cheesysmith]

Be careful about the floor height as coaches had different heights to DMU. One of the best things about the 158 was it kept the lower floor of DMU making entry easier than the coaches they replaced. As the sprinters were built using the same body shell as the EMUS, it is safe to assume that they also had lower floors.

[keefer]

https://uktransport.fandom.com/wiki/British_Rail_Class_465

 

Cl.465/0, 465/1 and 466 have BREL P3 & T3 bogies

Cl.465/2 and 465/9 have SRP BP62 & BT52 bogies