The Deck Roof Hi-V was a New York City Subway car class built from 1907 to 1908 by the American Car and Foundry for the IRT and its successors, the New York City Board of Transportation and the New York City Transit Authority.

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) Some of this article's listed sources may not be reliable. (February 2018) This article needs additional citations for verification. (October 2017)

Quick Facts In service, Manufacturer ...

Deck Roof Hi-V
A Deck Roof Hi-V car as it appeared in 1908.
In service	1907–1958
Manufacturer	American Car and Foundry
Constructed	1907–1908
Number built	50
Number preserved	1
Number scrapped	49
Successor	R17 R21 R22
Formation	Singles
Fleet numbers	3650–3699
Operators	Interborough Rapid Transit Company NYC Board of Transportation New York City Transit Authority
Specifications
Car body construction	Riveted Steel
Car length	51 ft 1.5 in (15.58 m)
Width	8 ft 10 in (2,692 mm)
Height	12 ft 0 in (3,658 mm)
Doors	Up until the early 1910s: 4 After the 1910s: 6
Maximum speed	55 mph (89 km/h)
Weight	Motor car: ~83,780 lb (38,002 kg)
Traction system	Motor car: GE212 [1] 2 motors per car.
Power output	200 hp (149 kW) per traction motor
Electric system(s)	600 V DC Third rail
Current collector(s)	Contact shoe
Braking system(s)	Before 1910: WABCO Schedule AM(P) with 'P' type triple valve and M-2 brake stand After 1910: WABCO Schedule AMRE with 'R' type triple valve and ME-21 brake stand
Track gauge	4 ft 8+1⁄2 in (1,435 mm)

Close

A total of 50 Deck Roofs were built, numbered 3650–3699. These cars remained in service from 1907 to 1958. These cars were nicknamed the Battleships because of their paint scheme where the siding was painted Battleship Grey.

When these cars were delivered, they had two doors on each side until the early 1910s, when they received another door in the middle on each side. The facing cross seats in the center, typical of el cars, were removed to accommodate the added center doors.

At the same time, as with the Gibbs cars, these Deck Roof cars were retrofitted with the more advanced type couplers and AMRE triple valve braking system introduced in the later Hedley High-V motors.

As with the Gibbs cars, many of these Deck Roof cars received motors originally in the Composites which were converted to trailers, but a small number received brand new motors, to speed these cars into service faster.^[2] Just like the Gibbs cars, the Deck Roofs sent 600 volts into the controller, which was hazardous. Otherwise, these cars proved to be reliable throughout their career.

In 1923 and 1936, the High-V fleet was being converted to multiple-unit door control, with the exception of all 50 of the Deck Roofs and some Gibbs and Hedley cars. The Deck Roofs were often placed at either end of the train so that ten car trains of High-Vs could run.^[3][4]

The Deck Roof cars served mostly in Broadway services, both Express and Local, throughout their lives. A number of trains served both rush hour Lexington Ave. Express services: Jerome Ave. and White Plains Rd., during the period that the regular Steinways were being used in Broadway Express service for a brief period from 1950 to 1952. These were returned to Broadway in 1952 as part of an equipment swap to save on crews.

The first 4 of these cars were held aside for the Bowling Green–South Ferry Shuttle and had the center door cutout feature, indicated by the white line outside under the number.

Until the late 1950s and early 1960s, the IRT platforms could not handle a full ten car train. Thus, the manual door controls of the Deck Roof were reliable, as the side vestibule doors at either end of the train can be opened manually even if the entire car isn't on the platform. However, two conductors were required for the operation of trains with manual door-controlled cars. Unlike the BMT and IND Divisions, full length trains of all older types of IRT cars always used two conductors.