) ▁ ▁Training ▁ship ▁, ▁( 1 9 2 7 ) ▁ ▁Sub mar ines ▁▁▁ ▁( 1 9 1 7 ), ▁United ▁States ▁made ▁similar ▁to ▁Holland ▁Type ▁M - 1 . ▁N amed ▁after ▁Captain ▁and ▁sub marine ▁pione er ▁Isaac ▁Per al . ▁De com ision ated ▁in ▁ 1 9 3 2 , ▁scra pped . ▁ ▁A - class ▁sub mar ines , ▁Italian ▁made ▁▁ ▁( 1 9 1 7 ), ▁named ▁after ▁sub marine ▁pione er ▁N arc ís ▁Mont uri ol . ▁De com ision ated ▁in ▁ 1 9 3 4 , ▁scra pped . ▁▁ ▁( 1 9 1 7 ), ▁named ▁after ▁sub marine ▁pione er ▁Cos me ▁García ▁S ae z . ▁De com ision ated ▁in ▁ 1 9 3 1 , ▁scra pped . ▁▁ ▁( 1 9 1 7 ), ▁decom ision ated ▁in ▁ 1 9 3 2 , ▁scra pped . ▁ ▁B - class ▁sub mar ines . ▁Bu ilt ▁in ▁Spain ▁similar ▁to ▁the ▁▁▁ ▁( 1 9 2 2 ), ▁class ▁B ▁first ▁unit . ▁▁ ▁( 1 9 2 2 ), ▁class ▁B ▁second ▁unit . ▁▁ ▁( 1 9 2 2 ), ▁class ▁B ▁third ▁unit . ▁▁ ▁( 1 9 2 3 ), ▁class ▁B ▁fourth ▁unit . ▁▁ ▁( 1 9 2 5 ), ▁class ▁B ▁fifth ▁unit . ▁▁ ▁( 1 9 2 6 ), ▁class ▁B ▁sixth ▁unit . ▁ ▁C - class ▁sub mar ines ▁▁