ABCdivepro
Registered
Good to know, thanks, debunking the Padi marketing spiel I heard for so long ! Wondering what tables they were using in 1955 I found US Navy decompression models and tables - Wikipedia really interesting. Makes me wonder too about SDI claims as the first agency offering DC only courses, fact or fiction ?Other agencies were teaching recreational diving prior to the formation of PADI in 1966, for example NAUI (1960) and Los Angeles County (1955).