AR-1 may refer to
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AR-1 (rocket engine)
The Aerojet Rocketdyne AR1 is a thrust RP-1/ LOX oxidizer-rich staged combustion cycle rocket engine project.
The engine was conceived in 2014, and received US government funding to build a prototype engine in 2016. By 2018, the USAF had comm ...
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Arkansas's 1st congressional district
Arkansas's 1st congressional district is a U.S. congressional district in eastern Arkansas that elects a representative to the United States House of Representatives. It is currently represented by Republican Rick Crawford. With a Cook Partisa ...
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Arkansas Highway 1
Highway 1 (AR 1, Ark. 1, and Hwy. 1) is a north–south state highway in east Arkansas. The route of runs from US Route 278 (US 278) in McGehee north to Supplemental Route BB at the Missouri state line. One of the origina ...
* An
Acoustic Research
Acoustic Research was a Cambridge, Massachusetts-based company that manufactured high-end audio equipment. The brand is now owned by VOXX. Acoustic Research was known for the AR-3 series of speaker systems, which used the acoustic suspension wo ...
corporation loudspeaker, famous as the first
acoustic suspension
Acoustic suspension (air suspension, closed box, sealed box) is a method of loudspeaker cabinet design and utilisation that uses one or more loudspeaker drivers mounted in a sealed box or cabinet. Acoustic suspension systems reduce bass distortio ...
speaker.
* The
USS Medusa (AR-1)
USS ''Medusa'' (AR-1) was the United States Navy's first purpose-built repair ship. She served in the U.S. Navy from 1924 to 1946.
Technical characteristics
Authorized as part of the naval programs of 1916 and 1918, ''Medusa'' was laid down at t ...
, the first US Navy repair ship
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AR-1 (multiple rocket launcher)
The BM-30 ''Smerch'' ( rus, Смерч, "tornado", "whirlwind"), 9K58 Smerch or 9A52-2 Smerch-M is a heavy self-propelled 300 mm multiple rocket launcher designed in the Soviet Union. The system is intended to defeat personnel, armore ...
* The AR-1 "Parasniper", a bolt-action rifle manufactured by
ArmaLite
ArmaLite, or Armalite, is an American small arms engineering company, formed in the early 1950s, in Hollywood, California. Many of its products, as conceived by chief designer Eugene Stoner, relied on unique foam-filled fiberglass butt/stock fu ...
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