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10 Cards in this Set

  • Front
  • Back

Magnetic deviation

Magnetic error introduced by local sources

Magnetic variation
The angle between magnetic north and true north
Magnetic error introduced by local sources

Magnetic deviation

Magnetic error introduced by the distance between magnetic north and true north

Magnetic variation
When turning to any Northerly heading, the compass...

Lags

When turning to any Southerly heading, the compass...

Leads

A turn to any Northerly heading should be stopped...

30 degrees before compass indicates

A turn to any Southerly heading should be stopped...

30 degrees after compass indicates

Turning mnemonic

UNOS



Undershoot North


Overshoot South

Accelerating mnemonic
ANDS



When traveling East or West...




Accelerating makes the compass turn North


Decelerating makes the compass turn South