Menu

Quick Search

Enter locomotive number in the box below and press 'Go'!

Content is coming here as you probably can see. Content is coming here as you probably can see.


?

In Touch

Donations

Counter

Ad Visitor Statistics
» 47 Online
» 4887 Today
» 5978 Yesterday
» 39100 Week
» 39100 Month
» 2080004 Year
» 8616211 Total
Record: 71951 (21/04/2026)
(Free MySQL Counter)

CR/LMS McIntosh "721" Class 4-4-0 - 'Dunalastair I'


Class Types
CR Class 721
(Also known as) Dunalastair I

General
Designer John McIntosh
Introduced 1896
Pre-Grouping Company Caledonian Railway
Grouping Company London, Midland & Scottish Railway
Wheel Arrangement 4-4-0
Number Built as 721 15
Manufacturers
ManufacturerTotal
St. Rollox Works 15
Orders
BuilderSponsorOrder #DateSize
St. Rollox Works  Y44 1896 15
Historical Data Development of Lambie 13 class. Larger bogie tenders used after 1897, 4,125 gallons. Cylinders redesigned in 11/1904.

Power
Tractive Effort 15,100lbs
Inside Cylinders 18.25" x 26" (2 off)
Inside Valves Slide
Inside Motion Stephenson

Wheels
Pony 3' 6"
Drivers 6' 6"
Locomotive Wheelbase 22' 1"
Descriptive Wheelbase 6' 6" + 6' 7" + 9' 0" = 22' 1" (engine only)

Dimensions
Weight (loco only) 46t 9cwt
Water Capacity 3,750gal

Boiler & Firebox