Wheel Specifications

Any aspect related to the prototype stock.
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jasp
Posts: 483
Joined: Mon Aug 20, 2012 5:40 pm

Wheel Specifications

Post by jasp »

Guys

The Scalefour Society is undertaking a reprint of Mike Sharman's "Wheel Specifications for the Modeller".
I am proof reading the CR loco section which has a couple of omissions and wonder if the following information could be provided for completeness of the work.

Brittain 1 class, 2-2-2WT, what was the diameter of the leading and trailing wheels?
Drummond 420 class, 4-4-0, what was the diameter of the leading (bogie) wheels?
Pickersgill 191 class, 4-6-0, how many spokes did the driving wheels have?

I would be grateful for your help

JIm P
jasp
Posts: 483
Joined: Mon Aug 20, 2012 5:40 pm

Re: Wheel Specifications

Post by jasp »

Chaps

Sorry, I have identified another couple of queries.

What year were Connor 0-6-0ST (Class 536) and Neilson 0-4-0ST (Class 502) engines built?

Thanks again

JIm P
dumb buffer
Posts: 514
Joined: Tue Aug 14, 2012 10:13 pm

Re: Wheel Specifications

Post by dumb buffer »

According to Baxter.....

2-2-2WT leading and trailing 3'1", DW 5'1"
Drummond 420 Cl (Brittain "Dundee Bogie") DW 7' 2" LW 3' 4 1/2"
Pickersgill 191 Cl 20 spokes (p169, livery book) Pin between (I think)
Connor 536 Cl 0-6-0 ST blt 1871 & 1874, DW 4'2"
Neilson 0-4-0 ST blt 1876 -- 1881 DW 3'8"

Usual health warnings apply re Baxter!

Allan F
jimwatt2mm
Posts: 685
Joined: Fri Nov 16, 2012 5:36 pm

Re: Wheel Specifications

Post by jimwatt2mm »

dumb buffer wrote:According to Baxter.....

2-2-2WT leading and trailing 3'1", DW 5'1"
..........
Usual health warnings apply re Baxter!

Allan F
I have a copy of the GA for 1A and thought all Ihad to do was consult that. Unfortunately the diameter of the wheels is not marked, other than the title of '5 Feet Wheel Tank Engine (Officers)'! :( Also the copy I have has been reduced in size so measuring it is not easy. Scaling from other marked dimensions, however, would confirm Allan's information.

Jim W
jasp
Posts: 483
Joined: Mon Aug 20, 2012 5:40 pm

Re: Wheel Specifications

Post by jasp »

Guys

Another question (my omission)
What was the driving wheel diameter and number of spokes of the Brittain 2-2-2WT, class 1?

Jim P
dumb buffer
Posts: 514
Joined: Tue Aug 14, 2012 10:13 pm

Re: Wheel Specifications

Post by dumb buffer »

jasp wrote:Guys

Another question (my omission)
What was the driving wheel diameter and number of spokes of the Brittain 2-2-2WT, class 1?

Jim P
5'1" 16 spoke, and the position of the crankpin is invisible behind the valve gear eccentrics. The leading and trailing wheels 3'1" 10 spoke (photo in "Caledonian Cavalcade")

Allan F
jasp
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Joined: Mon Aug 20, 2012 5:40 pm

Re: Wheel Specifications

Post by jasp »

Thanks Allan and Jim
Document sent to S4 society
Jim P
Dave Lochrie
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Joined: Mon Aug 20, 2012 8:38 pm

Re: Wheel Specifications

Post by Dave Lochrie »

Jim, the drawing with James McEwan's Locomotives of the Caledonian Railway coverage of No 1A/ 1001 in The Locomotive, 15/07/1946 confirms drivers 5' 1", 16 spokes, pin between, leading and trailing wheels, 3' 1", 10 spoke.
Dave L
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