used between United States men-of-war only. However, each United States man-of-war is equipped with, and prepared to signal by, the International Code of Signals.

(3) Every seagoing ship should have a copy of the International Code of Signals and every seagoing man should be familiar with its use. Signals of distress and life-saving signals, especially should be memorized as, in an emergency, it is frequently impossible to refer Code of Sig

to the book.

(4) The International Code of Signals provides for the transmission of signals by the following methods: ALI GO RURZEM Flag hoist.

Flashing Light-Flag Waving-Semaphore.

Sound.

Shape.

(5) Hospital ships use the International Code of Signals in making flag signals. The use of night and day wigwag, semaphore, and flashing light is authorized and the signal force should be proficient therein.

Affirmative

248. "Affirmative" (.-) Written "Affirm.'

(1) Replying to a signal indicates assent, consent, permission granted, or "Yes."

(2) Over a signal indicates that the specific work called for by that signal has been completed.

(3) Over four numerals (time of origin), or over four numerals (office reference number and date group) and accompanied by a second hoist of four numerals (time of origin) means "Your dispatch, referenced received."

(4) Under four numerals (time of origin), or under four numerals (office reference number and date group) and accompanied by a second hoist of four numerals (time of origin) means Referring to your dispatch, referenced, 'Yes' or permission granted."

(5) Hoisted by a ship getting under way in obedience to signal it means "Hove short" when at the dip, and "Under way" when at the foretruck. When hauled down it means "Ready to take position in formation." Not hoisted when "Hove short" in obedience to signal to "Heave short." Not used for this purpose at night unless so ordered.

(6) Hoisted by a ship when mooring means "Mooring shackle on and chain secured."

142

B.

"Boy" olivy to noibeups s is99998 (1) Explosive flag; hoisted at foreBoy 99truck when handling ammunition, fuel org amoood of qida oil, or gasoline in large quantities; also displayed in the bows of all boats and hlighters transporting same.

wob (2) Hoisted at yardarm of firing and

towing ships during target practice and by ships while standardizing propellers.umerals (time of

(4) Hoisted at the yardarm at the dip it indicates that the ship is off the range or not ready for firing.

Class call for "Battleships," but is not used alone as a call. 6) Hoisted at the fore or other conspicuous point of hoist by ships engaged in mine laying or mine sweeping.

NOTE. At night a red light shall be displayed at the fore truck when handling ammunition, fuel oil, or gasoline in large quantities.

(3) Hoisted at the foretruck under way it indicates the guide of a squadron or division. Lowered at the dip it indicates the guide is temporarily out of position or, in case of certain cruising formations, that the guide is maneuvering to lose distance.

(4) Under a ship's call directs that ship to become guide of its unit. Answered by hoisting E at foretruck.

(5) Under negative under a ship's call directs that ship to cease being unit guide. Answered by hauling down E.

(1) Over a signal it places the signal in the interrogatory form.

(2) Alone, replying to a signal, it means "Signal can not be read or is not understood."

(3) Under a call by a senior it means "You are repeating signal incorrectly, or "What movement are you making?" according to circumstances. (4) Made alone at night by senior ship it means "Flash your call numbers."

(5) Over four numerals (time of origin), or over four numerals (office reference number and date group), and accompanied by a second hoist of four numerals (time of origin), means 'Has my dispatch, referenced been received?"

(6) Under four numerals (time of origin), or under four numerals (office reference number and date group), and accompanied by a second hoist of four numerals (time of origin), means "Your dispatch, referenced is not understood."

Jig

J.

257. “Jig" (.-———)

(1) Call for destroyers in certain numbered positions.

(2) Over two or four numerals indicates time in hours and minutes from midnight until midnight; J02, 2 a. m.;

J14, 2 p. m.; J0022, 12.22 a. m.; J2210, 10.10 p. m.