7S-005-009 Sentinel Y1/Y3 NE 8154 Steam Locomotive Class_Class 43 HST Finished as departmental locomotive ‘Dounreay’

Finished as departmental locomotive ‘Dounreay’ No

60028 was turned out in a blue livery

but the last six examples survived until 1964

pre-etched

Vacuum-Brakes fitted

7S-005-009 Sentinel Y1/Y3 NE 8154 Steam Locomotive Class_Class 43 HST Finished as departmental locomotive ‘Dounreay’The Y1 Y3 sentinel was based on the road going lorry, utilising a similar centrally mounted steam tube boiler and chain drive system to the wheels. Whilst not having the greatest turn of speed (approximately 36mph top speed) these small locos proved capable of pulling a constant draw weight and were considered ideal for shunting in yards and providing motive power along smaller branch lines. These quirky little locos were used by all of the big four