USER GUIDE

Entering a Call-For-Fire

VBS3Fires v3.6.3 User Guide

7.1.7.7 Ammunition

Several types of ammunition are available to the FO. If the type of ammunition is not specified in the

call for fire, Ammo HE with Fuse quick will be fired during the adjustment and FFE phases. If a

different type of ammunition or Fuse action is required during either the adjustment or the FFE

phase, the FO must specify the type desired. As much warning as possible should be provided to the

ship when a mission requires a nonstandard projectile, such as WP. This allows time to ready the

ammunition in the gun mount.

7.1.7.8 Projectile

The FO must specify all projectiles except HE; for example, AMMO WP.

7.1.7.9 Fuse

The FO must specify all Fuses except Fuse quick; for example, FUSE DELAY. (When illumination is

fired, the Fuse is understood to be Fuse time.)

7.1.7.10 Number of Guns

The FO may specify the number of guns for effect. If not specified, it is understood to be the same

number as in adjustment. One gun is considered standard and need not be specified. An example

command is TWO GUNS.

7.1.7.11 Number of Salvos

This element is sent when entering Fire For effect. The term salvo refers to the method of fire in

which a weapon or a number of weapons are fired at a target. It indicates the number of rounds to

be fired from each gun. For example, 1 GUN 5 SALVOS means 5 rounds are to be fired, while 2 GUNS

5 SALVOS means 10 rounds are to be fired. If the method of control is spotter (FO) adjust, this

element is omitted until the FO is ready to enter Fire For effect; or it can be included if the FO wants

to adjust with multiple salvos. If omitted, the ship fires only one salvo. An example command is 2

SALVOS.

If the user doesn’t specify the ammunition and the number of rounds the default naval call for fire

settings will be taken into consideration.

7.1.7.12 Trajectory

Because of the high muzzle velocity and the flat trajectory of naval gunfire, intervening terrain may

prevent engagement of targets in defilade. Also, a reduced charge may be required to prevent

ripping of the illumination parachute or to increase accuracy at short ranges. The FO or the ship can

raise the trajectory, thereby increasing the angle of fall, by announcing REDUCED CHARGE. If this sub