I class may refer to:
*
''Acheron''-class destroyer, a class of destroyers that served in World War I
*
I-class destroyer
The I-class destroyers were a group of nine destroyers, including a flotilla leader, built for the Royal Navy during the 1930s. Four similar ships were ordered by the Turkish Navy, of which two were purchased for the Royal Navy, bringing the num ...
, a class of destroyers of the 1930s
*
I-class ferry
BC Ferries operates three Intermediate-class ferries:
MV ''Queen of Capilano'' (1991)
* 100 vehicles since Jan 2015 mid-life refit
* 462 passengers
* 96 metre length
* 2,500 gross tons
* 12.5 kts
* 7305 HP
* Route: Horseshoe Bay ↔ Bowen Island
...
, a class of ferries operated by BC Ferries
*
''Istanbul''-class frigate, a late 2010s class of indigenous Turkish frigates
See also
*
Class I (disambiguation) Class I may refer to:
* Class I antiarrhythmic
* Class I electrical appliance, a device constructed according to electrical grounding specifications in the IEC 60536-2 standard
* Class I bacteriocin, a type of toxin produced by some bacteria
*Clas ...
{{disambiguation