R44 may refer to: R44 (New York City Subway car) R44 (South Africa) , a destroyer of the Royal Navy R44: Risk of explosion if heated under confinement, a risk phrase Robinson R44, a helicopter CCITT R.44, a telex standard
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R44 may refer to: R44 (New York City Subway car) R44 (South Africa) , a destroyer of the Royal Navy R44: Risk of explosion if heated under confinement, a risk phrase Robinson R44, a helicopter CCITT R.44, a telex standard