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
O Gauge (1:43 Scale) Meteor Models No image available Requires assembly Not set Y1-Y3Meteor
View
Y1/Y3 0-4-0T Sentinel Shunter Kit (Body Only) Awaiting Categorisation
O Gauge (1:43 Scale) Walsworth Models No image available Requires assembly Not set WML705
View
LNER/BR Sentinel 8400 kit Awaiting Categorisation