Abrams SC-1, Техническое руководство

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MAINTENANCE MANUAL
four
minutes
from
the local standard time.
This
determines
the mean
solar time at
your
position.
(5) Now
apply
the
equation
of
time
as
taken
from
the date
bar
of
the sun
compass.
Examining
the date bar
will
disclose
that opposite the date lines indicated on the bar are short,
heavy lines
beside
which are numbers
preceded by a
plus or
minus sign. These numbers are the equation of
time
factor
and must
be
added or subtracted
to
the mean solar time
ac
cording
to the sign,
in
order
to
determine true sun time (local
apparent
time). There are numbers
on each end
of
the heavy
FICORI
7
—
Diagram of Time Conversion Problem.
lines representing the equation of time, and an intermediate
reading can
be
determined
by
interpolation
between them.
(6)
A
sample conversion problem follows:
(a) Referring
to figure
7
which
is
a
section of
a
map
em
bracing
part of
a
time zone, we determine
that
our position
14