USER GUIDE

Entering a Call-For-Fire

VBS3Fires v3.6.3 User Guide

4. Cannot Observe

The command CANNOT OBSERVE is used when neither the FO nor the ship can see the target yet

the target must be engaged. Normally, the location is received through intelligence sources. FOR

EFFECT and the number of salvos are always transmitted with this method of control; for example, 2

GUNS 4 SALVOS FOR EFFECT CANNOT OBSERVE.

5. At My Command

AT MY COMMAND is used as a modifier to the methods of control. If the FO needs to control when

the ship fires each round, FO includes AT MY COMMAND in the method of control. When the ship is

prepared to fire first round, it transmits READY OVER. The FO then commands BREAK FIRE and then

the first round is fired. Then FO has to command FIRE from Adjustment panel through Existing Fire

Missions to fire each remaining rounds. This method of control is often used by serial FOs. To

initiate it, the FO announces FOR EFFECT AT MY COMMAND.

6. Line of Fire

When the ship fires an illumination mission, wind drift may cause the flare parachute to miss the

target. To indicate a different firing direction, the ship reports LINE OF FIRE illumination missions; for

example, LINE OF FIRE 110 DEGREES TRUE. This direction is to the new illumination aiming point,

not the GT line.

7.1.7.16 Summit

If the FO is airborne, the ship routinely reports the highest altitude above mean sea level the

projectile will reach on its flight path to the target. Summit may also be requested by ground FOs or

the NGLO. Summit is reported in feet to air FOs and in meters to ground agencies (FO or NGLO).