MK 13 MOD 0 VLS CANISTER.- The Mk 13 Mod 0 canister houses the SM-2 BLK 11, 111, 111A, and 111B missiles (fig. 2-38). A Safe and Arm (S&A) mechanism on the launch rail is used to restrain the

Figure 2-37.-Mk 183 container for ASROC missiles.

Figure 2-38.-Mk 13 Mod 0 VLS canister.

Figure 2-39.-Mk 14 Mods 0 & 1 canisters.

missile, arm, and ignite the Dual-Thrust Rocket Motor. A canister access port with a removable cover allows the use of a safe only tool to return the S&A mechanism to the safe position.

MK 14 MODS 0 & 1 VLS CANISTERS.- The Mk 14 Mods 0 & 1 canisters provide environmental protection, structural and alignment support of the Tomahawk All-Up-Round (AUR) (fig. 2-39). The AUR consists of a missile and booster sealed in a canister that is nitrogen charged to provide additional environmental protection. The shell structure contains a thermal protective lining to reduce structural temperature during launch. The Mk 14 Mod 1 canister uses a CSES for conventional Tomahawk missiles. The Mk 14 Mod 0 canister uses a Critical Function Interrupt Switch (CFIS) which is similar in function to a CSES, with the exception being that it is key operated to prevent the inadvertent selection and launch of a nuclear missile. A Command Disablement/Permissive Action Link (CD/PAL) connector allows access to the nuclear warhead to unlock the warhead for use.

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