B11 – Originally C Class

Total Number of Engines Built 4
First Engine Built 1867
Last Engine Built 1867
First Engine Written Off 1902
Last Engine Written Off 1904


This class was originally known as C Class under the old classification system. These six coupled engines were constructed with a leading Bissel truck that reportedly allowed it to travel smoothly around curves. The engines burnt coke, wood and coal during their lives. Large chimneys containing spark arrestors were fitted when using wood fuel. Coke fuel was discontinued from 1870. Three of the engines were fitted with larger tenders ex D class engines before they were shipped to Maryborough in 1880/81.

In 1889 locomotives and rollingstock were consolidated into one rollingstock register. This resulted in most items, except those operating on the original Southern and Western Railway (from Ipswich), being renumbered. Numbers shown are state (or former S & W) numbers. Those in brackets are former numbers of individual railways.


MR – Maryborough Railway
Neilson – Neilson & Coy Glasgow

Technical Details
 OriginalWith E Class Tender
Wheel Arrangement2-6-02-6-0
Cylinders (diameter x stroke) ins.12 X 1812 X 18
Coupled Wheels diameter ins.3939
Boiler Pressure - psi.120120
Weight - Adhesive12.0612.06
Weight - Engine16.0916.09
Weight - Tender10.0714.2
Coal Capacity - tons2.52.75
Water Capacity - gallons7001000
Tractive Effort - lbs. (85%)5981 (75%)5981 (75%)
Factor of Adhesion4.74.7
Valve GearStephenson'sStephenson's
Class Roster