Differentiate between WCB & RB
Whole circle bearing (WCB)
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Reduced Bearing (RB)
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1. The horizontal angle made by a line with the magnetic north in the clockwise direction is the whole circle bearing of the line.
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1.The horizontal angle made by a line with the magnetic north or south (whichever is closer from the line) in the eastward or westward direction is the Quadrantal Bearing or Reduced Bearing of the line
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2. Only the magnetic north line is considered as reference line in whole circle bearing system.
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2. Both magnetic north and south lines are considered as reference line in quadrantal bearing system.
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3. The clockwise angle from the reference line is only taken
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3. Both clockwise and anticlockwise angle from the reference lines are taken.
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4. The value of the whole circle bearing varies from 0° to 360°
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4. The value of the reduced bearing varies from 0° to 90°
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5. Example: 26°, 121°, 245°, 350° etc.
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5. Example: N26°E, S59°E, S65°W, N10°W etc.
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6. Fig.
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6. Fig.
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