''Kobben'' (renamed to ''A-1'' in 1913) was the first

submarine A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...

of the

Royal Norwegian Navy The Royal Norwegian Navy ( no, Sjøforsvaret, , Sea defence) is the branch of the Norwegian Armed Forces responsible for naval operations of Norway. , the Royal Norwegian Navy consists of approximately 3,700 personnel (9,450 in mobilized state, 3 ...

. It was delivered on 28 November 1909. The boat was stricken in 1926 and scrapped in 1933. It was succeeded by the A class.

References

Submarine classes 1909 ships {{Norway-mil-ship-stub