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Old 07-22-19, 12:38 AM   #22
gumbeauregard
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Join Date: Feb 2008
Location: Houston, Texas
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No need to guess the firing bearing. If you know the target speed, the firing angle does not change. All you need to decide is periscope left or right of 0. Look it up on the chart and set the periscope accordingly to generate Zero Gyro Angle,

Example: The target is doing 12 knots with 90 Starboard Angle on the Bow.

Firing Angle is 22 degrees. Note that firing angle and firing bearing are the same for Port AOB shots.

For Starboard AOB, subtract firing angle (22 in this case) from 360 to get the firing bearing of 338.

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