7S-005-009 O Gauge Sentinel Y1/Y3 NE 8154 DCC Options:DCC Sound Fitted Features of the Class 122

Features of the Class 122 DMU includes:

Dimensions: 28x294x90mm

• Powerful 5 pole skew wound motor with refined slow running control

The Dapol Class 156 features:

As larger locomotives appeared the D Class locomotives began to appear on South Central services

7S-005-009 O Gauge Sentinel Y1/Y3 NE 8154 DCC Options:DCC Sound Fitted Features of the Class 122The 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