Deliveries of the UH - 60A to the Army began in October 1978 and the helicopter entered service in June 1979 .
The Army selected the UH - 60 for production in December 1976 .
Deliveries of the UH - 60     to the Army began in October 1978 and the helicopter entered service in June 1979 .
The Army selected the UH - 60 for production in December 1976 .