A Q stock train on the District line at Gunnersbury in 1955. The first car is Q23 stock; the second car is Q35 stock; the third and fifth are Q38 stock; and the fourth and sixth are Q27 stock. The London Underground Q Stock were trains used on the District line of the London Underground.

In 1938, forty-eight of these cars were rebuilt when the District line was standardising its post-1923 stock and were reclassified as Q23 Stock. [2] A major part of the Q Stock project was the replacement of the potentially dangerous manually operated sliding doors (which could be opened by passengers between stations) with air operated doors ...

The Q stock served the District line and comprised of rebuilt trains from between 1923 and 1935 which where constructed with hand-operated doors, being converted to air-operated doors from 1938 and a series of purpose built carriages.

The Q23 Stock was rebuilt from the G Stock that had orginally been built in 1923 for the Metropolitan District Railway by Gloucester RC&W. In the late 1930's the cars were reclassified H stock to indicate that they had handworked doors (H=handworked).

Q stock trains are a rare and distinctive part of London’s transport heritage. They represent the experimental era of pre-war modernisation of London’s Underground and reveal the influence of...

One Q23 stock motor car and one Q27 stock motor car were allocated as pilot motor cars for this task in 1967, but did not receive departmental numbers. They also toured the system with a gauging car, to check clearances.

Q23-stock was the name given to modernised ex-G- stock cars. The G-stock was introduced to the District line in 1923. These cars were fitted with hand-operated doors and were nicknamed 'horse boxes' because of their narrow cabs.

The 1930s Q stock trains were formed from sleek new cars with flared sides, purpose-built to run with a mix of older cars with American-style clerestory roofs dating from 1923. Unlike modern-day Underground trains with identical carriages, Q stock trains were made from a mix of cars with different styles dating back to 1923 – passengers never ...

The initial aim of the current Q-stock project is to restore three of the cars to operational condition. Phase 1 involves restoration of the two Q38 driving motor cars 4416 and 4417, along with Q35 trailer 08063, which is already close to operational condition.

Today a total of five Q stock cars still survive today, all of which are in the care of the LT Museum. One car, Q23 driving motor 4248 resides in Covent Garden, whilst the other four Q23 DM 4184, Q35 trailer 08063 and Q38 DMs 4416 & 4417 are currently at Acton.