The R110B cars were ordered from Bombardier in December 1989. The R110B was designed to test various new technology features that would eventually be incorporated into the
R143 and were not intended for long-term production use. There were nine R110B cars, numbered 3001–3009. The cars were linked into three-car sets by consecutive numbers. The cab cars are powered with four traction motors each, while the center car of the 3-car set is an unpowered, cab-less trailer. The cars are typical B-Division size, except that they are 67 feet long, a length shared by the
BMT Standards and the
SIRT ME-1s. The R110B uses the standard subway train control stand, but with some added computerized features. The layout of the controls is desk-style, with switches, lamps, and a single lever to control traction and braking. A
CRT with function keys on either side is used to monitor speed, train status, etc. The R110B's design is similar to that of the
R68 cars now in use on the
BMT and
IND services, but the ends are more square and use
Lexan glass in the windows. Car ends that do not have cabs have an expanse of glass. The seating configuration is the same as in the R68, but the materials are more advanced. A matte plastic is used that allows scratches, tags, and stubborn
graffiti to be buffed out using a light abrasive. The seats have a reduced bucket. Internal surfaces are tan
fiberglass and
plastic, with either fully kale wall accents and seating with textured raised square
linoleum floor patterns found on cars 3001–3006, or white speckled walls and seating with blue accenting on the bottom, including smooth non-textured floor panels found on cars 3007–3009. The walls have accents provided using a plastic mosaic applique as well. The R110B cars have handholds for shorter passengers, inherited by older retired
R12 and
R14 subway cars as a retrofit. Some cars have had their flooring replaced in the majority of the car toward the end of their short service life. There are
rollsign line indicators in the front of the train,
LCD destination signs (on windows) and interior strip route guides on top of the ad space, and an
LED indication of stops ahead on both sides. Rollsigns were not used on the subsequent New Technology Train orders; however, the
R211 order is equipped with front LED signs that are similar to rollsign-equipped trains. Another new and important feature was the passenger intercom, which could be used for emergencies. ==History==