Effects Cut-off Factor(ECOF)

Specifies the minimum percentage of effects that the commander considers acceptable on a fire mission.

• FDS begins with one round.
• It then adds one round at a time comparing the effects each time.
• When an additional round does not increase the effects by ECOF, effects processing is terminated.

P 5-11

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Title: Effects Cut-0ff Factor (ECOF)

Dialogue: The ECOF is a value that limits the ammo expenditures on effects type targets. It specifies the minimum percentage of effects that the commander considers acceptable on a fire mission. In general, for hard targets the MLRS ECOF should not be greater than 0.5 percent; 0.2 percent is preferred. This give the commander more flexibility in employing his MLRS fires. The MLRS FDS begins effects processing with one round specified for that target. Then it adds one round at a time, comparing the effects of the second and subsequent rounds to the ECOF to ensure the ECOF has been achieved. The computer stops processing effects when an increase of one round fired on the target does not provide an increase in effects equal to or greater than the ECOF value.