The Vital Statistics of a Merchant Navy Class Locomotive.
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BR Power Class Designation
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8P
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Overall Length
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71 ft. 8 in.
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Total Weight
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150 tons
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Cylinder Bore
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18 in.
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Piston Stoke
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24 in.
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Valve Diameter
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11 in.
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Valve Travel
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6.75 in.
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Coal Capacity
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7 tons
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Water Capacity
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5700 Imp gallons
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Firegrate area
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49 sq. ft.
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Heating Surface
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2450 sq. ft
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Coupled Wheel diameter
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74 in.
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Nominal Tractive effort
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15 tons
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Working Pressure
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250 psi
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Brakes
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Dual Braked Vacuum and Air
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Modifications
The overhaul completed in September 1994 saw some major design changes incorporated into Clan line. These changes were not undertaken lightly but were in response to the changing conditions and requirements of today's modern railway. The coal capacity of the tender was increased from 5 to 7 tons (nominal) by extending the bunker towards the back of the tender and platform level water fillers have been fitted. The latter modification permits servicing in safety under electrified catenery. Air braking equipment (see photo below) has been fitted to allow the locomotive to haul modern air braked coaching stock as older vacuum braked stock is progressively being phased out.
Compressor mounted on tender shown before the doors were fitted
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