Sikorsky S-51 LQ-XXR
Was a former Federal Police aircraft in service since 1949, transferred to the then Prefectura Nacional Maritima and redesignated PM-20
1962: Bell 47s joined the service
Bell 47J-2 Ranger c/n 1806 PM-21
Bell 47J-2A Ranger c/n 3320 PM-22
In 1970 the service is renamed Prefectura Naval Argentina therefore changing serials to PA
Bell 47J-2A Ranger c/n 3320 PA-22 ex PM-22 
1968: Six Hughes 369HS arrived
PA-30 today at the Prefectura Museum at Tigre, Buenos Aires 
Hughes 369HS c/n 11-0274S PA-31 during a 1980s expo 
1980: The SA 330L Puma join the service
Puma in their original colours
Aerospatiale SA330L Puma PA-13 serving at Mar del Plata coast guard air station
1995: four Aerospatiale Dauphin II are incorporated:
Aerospatiale AS565MA Dauphin c/n 6412 PA-43 
1996: Schweizer 300C :
PA-92 
2011: Brand-new Eurocopter AS.355NP capable to operate from the Mantilla Class patrol vessels
PA-81 