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New York City Transit Authority World's Fair Bluebird Subway Train

The R33S, also known as R33 World's Fair or R33WF, was a New York City Subway car that was built by St. Louis Car Company in 1963 for the IRT A Division. They were purchased for service on the IRT Flushing Line, which was the closest line to the 1964 New York World's Fair. A total of 40 cars were built, arranged as single cars. While in regular service, each R33S was coupled to five two-car consists of R36 cars to make 11-car trains for the 7 and 7 Express routes.

The R33S fleet entered service on September 26, 1963, and was originally painted in a light blue turquoise "Bluebird" scheme. The fleet was overhauled in the mid-1980s, during which the cars were painted red, leading to the nickname "Redbirds". The R33S fleet was replaced in the early 2000s with the delivery of the R142 and R142A cars, with the last train of R33S and R36s running on November 3, 2003. After being retired, some R33S cars were preserved, but most were kept for work service; many of the work cars were scrapped in the 2010s.

Controls
L - Front lights
B - Rear Lights
X (tap) - Right doors
X (hold) - Left doors
K - Door chime
H - Horn