London Underground M and N Stock

M and N Stock
Interior of N/Q35 Stock at London Transport Museum Acton Depot
In service	1935–1971
Manufacturer	BRC&W (M Stock) and Metro-Cammell (N Stock)
Specifications
Car length	50 ft (15.24 m)
Width	8 ft 11 5⁄16 in (2.726 m)
Height	12 ft 3 1⁄2 in (3.747 m)
Weight	DM 34.03 long tons (34.58 t; 38.11 short tons) T 23.82 long tons (24.20 t; 26.68 short tons)
Seating	42
Notes
London Transport portal

The London Underground M Stock and N Stock were similar designs of rolling stock built in 1935. As the new cars were urgently required they were based on existing designs (K Stock and L Stock). Several years after construction both types were absorbed into the Q Stock. The last of these trains were withdrawn in 1971.

London Underground M Stock

London Underground M Stock was a clerestory-roofed rail stock built for the Hammersmith & City line in 1935 and subsequently absorbed into the London Underground Q Stock, being redesignated Q35 Stock. The M Stock was based on the 1927 K stock. Twenty-eight cars were built in 1935 by Birmingham Railway Carriage and Wagon Company: fourteen were driving motor cars and the rest were trailers. All the driving motor cars were converted to trailers between 1947 and 1955.

The M Stock was the first surface stock to be delivered with air-operated doors.

Upon conversion to Q Stock, all the cars were transferred to the District line (with the Hammersmith and City Line services being operated from 1938 onwards by new trains of O Stock).

London Underground N Stock

London Underground N Stock was a type of clerestory-roofed stock built in 1935 and subsequently absorbed into the London Underground Q Stock, being redesignated London Underground Q35 Stock|Q35 Stock. The N Stock was based on the 1927 K Stock. Twenty-six cars, all trailers, were built in 1935 by Metropolitan Cammell.

London Underground rolling stock
Tube stock	1900 1903 1906 1914 1915 1920 Watford Joint Standard 1935 1938 1949 1956 1959 1960 1962 1967 1972 1973 1983 1986 (experimental) 1992 1995 1996 2009 NTfL
Sub-surface stock	District Railway A B C D E F G H K L Metropolitan Railway Electric multiple units GN&C S T Circle London Transport G23 M/N O/CO/P/P1/CP Q/Q23/Q27/Q31/Q35/Q38 R38/R47/R49/R59 A60/A62 C69/C77 D78 S7/S8 Locomotives Battery-electric Diesel Electric London Transport locomotives Steam locomotives A B C D E F G H K District Metropolitan departmental ex GWR Metropolitan Railway Peckett Saddle Tank Wotton Tramway Tube-gauge steam locomotives Other stock Departmental Engineering Sleet locomotives Coaching stock Carriages
Rolling stock in current passenger service is shown in italics London Transport portal