SHUNTING ENGINES

Greymouth Evening Star, 25 August 1928, Page 2

SHUNTING ENGINES

NEW TYPE DESIGNED

A new type of shunting locomotive, upon which tho Chief Mechanical Engineer of the New Zealand Railways (Mr G. S. Lynde) and his staff have been working for some time is to be introduced by the Railway Department. Twenty-four are to be built in the New Zealand workshops. The engines tiro of the 2-6-2 type; that is, there will be three pairs of driving wheels, and one pair of undriven” wheels before and behind. The tender will have eight wheels. The tender tank slopes downwards at the back end with a. view to giving a better outlook from the cab for the engine crew. This innovation will also bo appreciated by shunters. Although it is intended to use this type of engine primarily for shunting purposes, the design is such that it will be suitable for surburban passenger traffic, etc., this point having been kept in view in preparing the design. The boiler will have large, wide firebox suitable for burning coal of inferior quality. The weight of the engine in working order will bo 36? tons, but this figure will be increased, if it can be arranged, in order to get. more adhesive weight. The tender will weigh, in working order. about 251 tons.

Tho following are the leading dimensions:—Cylinders. 14in x 22in; heating surface, firebox 140 sq. ft., tubes 450 sq. ft., flues 196 sq. ft., total 786 sq. ft. super-heater elements, 146 sq. ft. grate area 24 sq. ft’.; boiler pressure, 1801 b per square inch; tractive force, at SO per cent, of boiler pressure, 13,8001 b coal capacity, 3? tons; water capacity, 2000 gallons.