A.—7.

The category of aircraft-carriers is divided into two sub-categories as follows: — , . (a) vessels fitted with a flight deck, from which aircraft can take oft, or on which aircraft can land from the air; (b) vessels not fitted with a flight deck as described in (a) above. (3) Light surface vessels are surface vessels of war other than aircraftcarriers, minor war vessels, or auxiliary vessels, the standard displacement of which exceeds 100 tons (102 metric tons) and does not exceed 10,000 tons (10,160 metric tons), and which do not carry a gun with a calibre exceeding Sin. (203 mm.). The category of light surface vessels is divided into three sub-categories as follows: — _ , . . (a-) vessels which carry a gun with a calibre exceeding 61 in. (100 mm.) ; (b) vessels which do not carry a gun with a calibre exceeding 61 in. (155 mm.) and the standard displacement of which exceeds 3,000 tons (3,048 metric tons) ; _ _ (c) vessels which do not carry a gun with a calibre exceeding 61m. (155 mm.) and the standard displacement of which does not exceed 3,000 tons (3,048 metric tons). (4) Submarines are all vessels designed to operate below the surface of the sea. (5) Minor war vessels are surface vessels of war, other than auxiliai> vessels, the standard displacement of which exceeds 100 tons (102 metric tons) and does not exceed 2,000 tons (2,032 metric tons), provided they have none of the following characteristics: — (a) mount a gun with a calibre exceeding 61 in. (155 mm.); (b) are designed or fitted to launch torpedoes; (c) are designed for a speed greater than twenty knots. (6) Auxiliary vessels are naval surface vessels the standard displacement of which exceeds 100 tons (102 metric tons), which are normally employed on fleet duties or as troop transports, or in some other way than as fighting ships, and which are not specifically built as fighting ships, provided they have none of the following characteristics: — (a) mount a gun with a calibre exceeding 61 in. (155 mm.); (b) mount more than eight guns with a calibre exceeding 3 in. (76 mm.) ; (c) are designed or fitted to launch torpedoes; (d) are designed for protection by armour plate; (e) are designed for a speed greater than twenty-eight knots; (/) are designed or adapted primarily for operating aircraft at sea; (g) mount more than two aircraft-launching apparatus. (7) Small craft are naval surface vessels the standard displacement of which does not exceed 100 tons (102 metric tons). C. —Over Age:— Vessels of the following categories and sub-categories shall be deemed to be " over age " when the undermentioned number of years have elapsed since completion:— (a) Capital ships . . . ■ • • . . 26 years, (fc) Aircraft-carriers . . • • • • . . 20 years. (c) Light surface vessels, sub-categories (a) and (&)— (i) if laid down before Ist January, 1920 . . 16 years. (ii) if laid down after 31st December, 1919 . . 20 years. (d) Light surface vessels, sub-category (c) . . 16 years. (e) Submarines . . • • • • . . 13 years. D. —Month: — The word " month " in the present Treaty with reference to a period of time denotes the month of thirty days.

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