18 Series (F2)

Doncaster No. 1 engine was, as already mentioned, delivered on the rails at the latter end of 1867, and was fittingly enough the pioneer of a new type. It was specially designed by Mr. Stirling for working “mixed” traffic, ranging from heavy excursion to fast goods work, and for this the class has proved to be of such great utility that 153 locomotives of this type were eventually put to work.

Engines of this type run most of the fast passenger train services in the West Riding division of the line. As can be seen from the accompanying illustration, which shows the first of the class, these “mixed” engines ran on six wheels, of which the leading and driving pairs were coupled, while a small pair of independent wheels under the cab bore the weight of the trailing end. Fig. 37, however, represents only the first three of the series in actual details, these being the three engines built at Doncaster in 1867.

It will be noted that the square-sided cab with a circular window was the trial pattern first adopted by Mr. Stirling, which subsequently was replaced by the more familiar design already shown in the preceding figure. No. 18 and the two immediately following were distinguished from later editions by having only one large opening in each splasher, instead of two of the type shown in Fig. 36, and also by having a black beading round the splasher instead of the one of polished brass subsequently adopted.

The leading dimensions of the first engines of this new class were : cylinders 17-in. in diameter with a 24-in. stroke; diameter of coupled wheels 5-ft. 7-in., and of trailing wheels 3-ft. 7-in.; wheel-base: leading to driving axle 7-ft. 3-in., driving to trailing axle 7-ft. 11-in., total 15-ft. 2-in.; overhang of frame at leading end 4-ft. 10 1/2-in., and at trailing end 2-ft. 7-in. ; boiler barrel : length 10-ft. ; diameter outside smallest ring 3-ft. lo-in. ; height of centre above rails 7-ft.; firebox casing: length 5-ft. 6-in., depth at front 5-ft. 1-in., and at back 4-ft. 7-in. ; heating surface : firebox 100 sq. ft., tubes 975 sq. ft., total 1,075 sq- ft. ; grate area 16.25 sq. ft. ; total weight in working order 31 tons. 18 cwt., distributed as follows: leading wheels 11 tons 14 cwt., driving wheels 14 tons, and trailing wheels 6 tons 4 cwt. 

The first series of these useful engines consisted of 46, which were built in the years from 1867 to 1874 inclusive, with the following works and running numbers :—

Date. Doncaster No. Engine No. Date. Doncaster No. Engine No.
1867 1 18 1870 54 65
1867 2 23 1870 57 200
1867 3 40 1870 58 35
1868 12 44 1870 59 64
1868 15 49 1871 63 35
1868 16 9 1871 67 32
1868 17 38 1871 70 30
1868 19 218 1871 72 203
1868 20 220 1871 73 68
1869 22 76 1871 76 83
1869 23 205 1872 81 46
1869 24 11 1872 85 13
1869 25 31 1872 87 52
1869 28 19 1872 90 71
1869 33 17 1872 91 75
1869 35 82 1873 98 16
1869 39 27 1873 99 50
1870 42 56 1873 106 508
1870 43 54 1873 109 509
1870 45 58 1873 112 77
1870 47 59 1873 114 81
1870 52 15 1874 124 73
1870 53 25 1874 126 219

 

Some or all of the description has been edited from G.F.Bird's Locomotives of the Great Northern Railway

Preserved Locomotives

There are no preserved locomotives of this type.

Models

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