141. White Smoke Grenade (HC) AN-M8, Fig. 58, designated as above, is used for mark-ing, signaling or concealing details in tactical operations on the ground. It is launched by hand, and two seconds after launching emits smoke which reaches maximum output in three seconds and continues for approximately 2.5 minutes. The grenade is a cylindrical container six inches long and 2.5 inches in diameter. The fuze, with a safety lever and its safety pin, protrudes 0.75 inch from the head end. It is assembled complete as Fuze, Ig-niting, Grenade M200A1, which is similar in appearance to a Bouchon firing mechanism as used on other pyrotechnic ammunition. A new fuze, designated as M201, is currently un-der procurement, but no attempt must be made to refuze those grenade already issued.

Figure 58. – Smoke Grenade (HC) AN-M8 and M18

Operation

142. To operate White Smoke Grenade (HC) AN-M8, hold it in the throwing hand with the safety lever pressed firmly against the side of the case. Withdraw the safety pin with the other hand, draw the throwing arm back, and throw. Do not release the safety lever until the grenade leaves the throwing hand.

Packing

143. White Smoke Grenade (HC) AN-M8 is packed in an individual moisture-resistant fiber conatiner, and 25 such containers are shipped in a wood box. The grenade is painted gray and is marked in yellow on one band, showing "HC" which is the type of smoke, and the word "SMOKE" to indicate the effect.

Stowage

144. General rules for the stowage of pyrotechnic ammunition as outlined in paragraphs 9 to 12, inclusive, apply to White Smoke Grenade (HC) AN-M8. In stowage aboard ship, however, this item should be stowed in cool and dry locations above decks, because of the difficulty in combinating the smoke in case of fire.

Safety Precautions

145. In using White Smoke Grenade (HC) AN-M8, the following safety measures should be taken:

(a) The safety lever must not be released until actual ignition is desired. The delay after the release of the safety lever is only two seconds.

(b) The grenade may be thrown with a full arm swing, or it may be placed on the ground. It should never be put within five feet of other inflammable material.

(c) All personnel should remain more than five feet from the grenade as it ignites and emits its smoke. The smoke, though harmless, is evolved with considerable force and with a tendency to give off hot particles of residue.