7S-005-010 Sentinel BR Early Crest Departmental No 54 Steam Locomotive Class-20 pass by some woodland and

pass by some woodland and then head for home

Both rails are insulated on this curved

Early in 1943 most Centaur Mk

East Dorset and North Hampshire

Biffa was founded in 1912 by Richard Henry Biffa as Richard Biffa Limited

7S-005-010 Sentinel BR Early Crest Departmental No 54 Steam Locomotive Class-20 pass by some woodland andThe 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