The R36 (or R36 ML) is a model class of IRT cars built in 1964 by the St. Louis Car Company, Saint Louis, Missouri, USA. These cars are referred herein as R36 ML (or Main Line) to distinguish them from the R36 World's Fair cars on the 7 .

The R36 ML was a 34-car follow-up order to the 500-car R33 model. Both R33 ML and R36 ML were similar. These cars ran for many years on the IRT Main Lines (Broadway/7 Avenue and Lexington Avenue lines. They were rebuilt in the mid 1980s-early 1990s.

In 1998, New York City Transit annouced that it would begin phasing out the Redbird cars-R26/28/29/33/36. From 2000 to 2004 Redbird cars were scrapped, sold, put into work service or stored out service.

All but one pair of R36 ML's were scrapped. With the arrival of R142As on the 6 line, the R36 MLs were tranferred over to the 7. 9542-3 the last pair ran until May 2003. It went to the New York Transit Musueum in 2004.

R36 ML Specs

Car Numbers: 9524-9557

• Car Body: Carbon Steel (LAHT alloy unibody construction)
• Car Length: 51 Feet 6 Inches
• Car Width: 8 Feet, 9 Inches
• Car Height: 11 Feet, 10 3/8 Inches
• Total Seating: 44
• Propulsion: Westinghouse XCA248
• Braking: WABCO "SMEE"
• DC Motors: WH 1447C (100 HP, 4/car)
• Cab Arrangement: Half-width driver's cab at "A" end, half-width conductor's cab at "B" end
• Coupling/Numbering Arrangement: All married pairs.