R22 may refer to:
Roads
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R22 road (Belgium)
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R-22 regional road (Montenegro)
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R22 highway (Russia)
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R22 (South Africa)
Vessels
* , a destroyer of the Royal Navy
* , an aircraft carrier of the Indian Navy
* , a submarine of the United States Navy
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Other uses
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R22 (New York City Subway car)
The R22 was a New York City Subway car built by the St. Louis Car Company from 1957 to 1958. The cars were a "follow-up" or supplemental stock for the A Division's R21s and closely resemble them. A total of 450 cars were built, arranged as sin ...
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Chlorodifluoromethane
Chlorodifluoromethane or difluoromonochloromethane is a hydrochlorofluorocarbon (HCFC). This colorless gas is better known as HCFC-22, or R-22, or . It was commonly used as a propellant and refrigerant. These applications were phased out under ...
, a refrigerant
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Fiat R.22
The Fiat B.R. 1/4 was a light bomber series, developed in Italy shortly after World War I.
Design and development
The B.R was a development of the SIA 9 reconnaissance aircraft, incorporating major strengthening of that design. Its general ...
, an Italian reconnaissance aircraft
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Ndonga dialect
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R22: Harmful if swallowed, a risk phrase
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R-22 Spearhead, a fictional starfighter in the ''Star Wars'' universe
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Robinson R22
The Robinson R22 is a two-seat, two-bladed, single-engine light utility helicopter manufactured by Robinson Helicopter Company. It was designed in 1973 by Frank D. Robinson, and has been in production since 1979.
Development
The majority of fl ...
, an American helicopter
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