Statistics

Gauge	4ft 8 1/2 in
Flue tubes	6 x 5 1/8 in dia
Driving Wheel	4ft 7 1/2 in dia
Superheater Tubes	36 x 1 in dia
Trailing Wheel	3 ft 8in dia
Superheater heating surfaces	82.2 sq ft
Overall Length	37ft 6in
Area of Firegrate	20.35 sq ft
Coal Capacity	3 tons 15cwt
Firebox Heating Surface	121.8 sq ft
Water Capacity	1,900 imp gal
Cylinders	Two, inside
Boiler Type	Number 2
Cylinder Size	18 in dia x 26 in stroke
Boiler Length	11ft 0 in
Valve Gear	Stephensons
Boiler Minimum Size	4 ft 5 1/8 in dia
Valve Type	Piston valves
Boiler Maximum Size	5ft 0 1/2 in
Tractive Effort	25,800 lbf
Boiler Tubes	218 x 1 5/8 in dia
Power Classification	GWR: D/BR: 5MT
Boiler Tube Heating Surfaces	1,144.94 sq ft
Working Weight	68 tons 12 cwt
Boiler Pressure	200psi
Route Available	“RED”
Configuration	0-6-2 T this indicates 5637 is a tank engine with no leading wheels, six driving wheels and two trailing wheels
UIC Classification	C1ht this indicates 5637 is a superheated tank engine with no leading axle, three driving axles and one trailing axle