Spanish submarines in Barcelona, 1966 Almirante García D Class units midget submarines Foca and Tiburon
Spanish submarines in Barcelona, 1966. Almirante García de los Reyes (S-31) ex-USS Kraken (SS-370), two D Class units including S-21– already modernized with the Spanish version of the GUPPY conversion– and in the foreground the domestically built midget submarines Foca (SA-41) and Tiburon (SA-42).