NYC Subway HD Audio: Bombardier MITRAC AC Traction Motor IGBT Inverter Sounds on The R179 (8/13/19)

READ: As promised, here is the recording of the R179 motor sounds from car 3266 on the IND Rockaway Line, with the speedometer app open. Enjoy =) 0:00 to 1:09:23 - Mott Av to 42nd St. Port Authority. 1:09:24 to end - Aqueduct - North Conduit to Mott Av. Note the slightly different pitch scale progression at 1:22:55.