R12 (New York City Subway car)

R12
R12 car 5760 on display at the New York Transit Museum
Interior view of R12 car 5760
In service	1948–1981
Manufacturer	American Car and Foundry Company
Built at	Berwick, Pennsylvania, USA
Constructed	1948
Entered service	July 13, 1948
Number built	100
Number preserved	2
Number scrapped	98
Successor	R62
Formation	Single units
Fleet numbers	5703–5752 (Westinghouse) 5753–5802 (General Electric)
Capacity	44 (seated)
Operators	NYC Board of Transportation New York City Subway
Specifications
Car body construction	LAHT Carbon steel
Car length	51 ft (15.54 m)
Width	8 ft 9.5 in (2,680 mm)
Height	11 ft (3,353 mm)
Platform height	3.76 ft (1.15 m)
Doors	6 sets of 50 inch wide side doors per car
Maximum speed	55 mph (89 km/h)
Weight	73,100 lb (33,158 kg)
Traction system	General Electric 1240A3 or Westinghouse J1447C
Power output	100 hp (75 kW)
Braking system(s)	WABCO A1 "SMEE" Braking System, A.S.F. simplex unit cylinder clasp tread brake
Safety system(s)	Tripcock
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge

The R12 was a New York City Subway car built by the American Car and Foundry Company in 1948. A total of 100 cars were built, arranged as single units. Two versions were manufactured: Westinghouse (WH)-powered cars and General Electric (GE)-powered cars.

The R12s were the first post-war city-owned rolling stock for the IRT A Division. The first of these entered service on July 13, 1948; the fleet initially ran on the IRT Flushing Line until the R33S and R36 World's Fair fleets were delivered in the 1960s. The R12s were retired in the early 1980s due to service reductions prior to the delivery of the R62 fleet in the mid-1980s, and the final train of R12s ran in September 1981. Two R12 cars were saved for the New York Transit Museum, while the rest were scrapped.