R1

R1 or R-1 may be:

R1 (SEPTA), a commuter rail line in Philadelphia, Pennsylvania
R1 (New York City Subway car)
R-1, a post WW-II Russian rocket.
Yamaha YZF-R1, a motorcycle.
FN FAL, an assault rifle.
Reemtsma No. 1, a brand of cigarettes made by Imperial Tobacco.
BBC Radio 1, a British radio station.
R-1, an original mecha from Super Robot Wars seires.
R1 (expert system), an expert system written by John McDermott
R1 (nuclear reactor), the first nuclear reactor of Sweden
AEG R.I, a German World War I super-heavy bomber design

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