13.2.1 Craft should be provided with a magnetic
compass which is capable of operating without electrical supply, and
which may be used for steering purposes. This compass should be mounted
in a suitable binnacle containing the required correcting devices
and should be suitable for the speed and motion characteristics of
the craft.
13.2.2 The compass card or repeater should be
capable of being easily read from the position at which the craft
is normally controlled.
13.2.3 Each magnetic compass should be properly
adjusted and its table or curve of residual deviations should be available
at all times.
13.2.4 Care should be taken in siting a magnetic
compass or magnetic sensing element so that magnetic interference
is eliminated or minimized so far as practicable.
13.2.5 Passenger craft certified to carry 100
passengers or less should, in addition to the compass required by
13.2.1, be provided with an instrument, suitable for the speed and
motion characteristics and area of operation of the craft, providing
a heading reference of accuracy superior to that provided by a magnetic
compass.
13.2.6 Cargo craft and passenger craft certified
to carry more than 100 passengers should, in addition to the compass
required in 13.2.1, be provided with a gyro-compass which should be
suitable for the speed and motion characteristics and area of operation
of the craft.