4wVB Class Y1/ Y3 Sentinel Profile and Models

4wVB Class Y1/ Y3 Sentinel

68153 at the Middleton Railway, Leeds, in September 2021. ©Andrew Southwell

Distinctive and small in stature; the Y1 and Y3 classes were built in the 1920s/30s and featured a highly unusual design which included a gearing system and superheated vertical water-tube boiler. The Y1s featured a “one speed” gearbox, whilst the Y3s were “two speed” which enabled the latter to work at either shunting or trip-working speeds. The class had the advantage of being able to raise steam much faster than locomotives with conventional boilers. They were used at yards across the country and proved advantageous due to their low coal consumption and ability to be operated by one person.

Type of Locomotive

Steam

Builder

Sentinel Waggon Works

Build Date

1925 - 1927 (Y1), 1927 - 1931 (Y3)

Total Built

24 (Y1), 32 (Y3)

Tractive Effort

7,260lbf to 8,870lbf

Wheel Configuration

0-4-0 geared tank

Operated by

LNER
LMS
GWR
BR
NCB

 

Products awaiting categorisation

Scale Brand Image Construction Type DCC Capability Product Code Product Title Livery
OO Gauge (1:76 Scale) Kitbuilt KB2202 Sentinel steam railcar - Highland Chieftan - 33 - from unknown white metal kit RTR/RTUse/Pre-assembled Unpowered KB2202
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Sentinel steam railcar - Highland Chieftan - 33 - from unknown white metal kit Unpainted
O Gauge (1:43 Scale) Kitbuilt KB2206 Class Y3 sentinel 4wVB 47183 in BR black with early emblem - built from unknown kit on Lima chassis RTR/RTUse/Pre-assembled Unpowered KB2206
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Class Y3 sentinel 4wVB 47183 in BR black with early emblem - built from unknown kit on Lima chassis BR black with early emblem
O Gauge (1:43 Scale) Meteor Model Engines MM-01 Y1/Y3 4wVB Sentinel kit Requires assembly Unpowered MM-01
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Y1/Y3 4wVB Sentinel kit Unpainted
O Gauge (1:43 Scale) Meteor Models No image available Requires assembly Not set Y1-Y3Meteor
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Y1/Y3 0-4-0T Sentinel Shunter Kit (Body Only) Awaiting Categorisation
O Gauge (1:43 Scale) SkyTrex SMR401 Class Y3 0-4-0 Tram Locomotive RTR/RTUse/Pre-assembled Not set SMR401
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Class Y3 0-4-0 Tram Locomotive BR black with early emblem
O Gauge (1:43 Scale) Walsworth Models No image available Requires assembly Not set WML705
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LNER/BR Sentinel 8400 kit Awaiting Categorisation
Other Scale Lledo LP88010 Sentinel DG4 steam wagon Lledo Collectors Fair - Donington 1999 RTR/RTUse/Pre-assembled Unpowered LP88010
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Sentinel DG4 steam wagon Lledo Collectors Fair - Donington 1999 Not Applicable
O-16.5 Gauge (1:43.5 Scale) WrightLines No image available Requires assembly Not set W231
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Sentinel Industrial Tank Loco Kit Freelance