Maneuvering Board

Is a polar-coordinate plotting sheet devised to solve relative motion problems

• Dividers

• Maneuvering Board

• Parallel rulers

For accurate measurements of time, distance, and speed

• Dividers

• Maneuvering Board

• Parallel rulers

To accurately parallel lines of motion

• Dividers

• Maneuvering Board

• Parallel rulers

Indicate bearing of the contact in relation to your ship as the reference ship (R).

• Compass Rose

• Range Circle

• Range Scales

Series of concentric circles spaced at equal intervals from the center.

• Compass Rose

• Range Circle

• Range Scales

Graduated units to fit the entire length of the plotting sheet.

• Compass Rose

• Range Circle

• Range Scales

Is the straight line between an observer and an object observed.

• True Bearing

• Relative bearing

• Line Of Sight (LOS)

Is a bearing always measured from true north

• True bearing

• Relative bearing

• Line Of Sight (LOS)

Is a bearing measured in degrees from the ship’s heading (course) clockwise to the line of sight to the observed object (another ship)

• True bearing

• Relative bearing

• Line Of Sight (LOS)

Use To determine the time, distance, and speed when any of the two quantities are known.

• Nomogram or Logarithmic Scale

• Range Scales

• Range Circle