- heights. A
chart datum is
generally derived from some
tidal phase, in
which case it is also
known as a
tidal datum.
Common chart datums are
lowest astronomical...
- A
geodetic datum or
geodetic system (also:
geodetic reference datum,
geodetic reference system, or
geodetic reference frame, or
terrestrial reference frame)...
- In aviation,
reference datum height (RDH) is the
height of a point,
located above the
intersection of the
runway centre line and the threshold, through...
- A
datum reference or just
datum (plural:
datums) is some
important part of an object—such as a point,
line, plane, hole, set of holes, or pair of surfaces—that...
- standards, also
includes a
choice of
geodetic datum (including an
Earth ellipsoid), as
different datums will
yield different latitude and
longitude values...
- The
North American Datum (NAD) is the
horizontal datum now used to
define the
geodetic network in
North America. A
datum is a
formal description of the...
-
there are a
number of
measurements that are important.
Sight line, a
datum line along the
line of
visual aim,
extending axially to all
points necessary for...
- required. A
datum is a
theoretically exact plane,
line, point, or axis.: 3 A
datum feature is a
physical feature of a part
identified by a
datum feature...
-
direction as a
reference line, or plumb-
line. It is a
precursor to the
spirit level and used to
establish a
vertical datum. It is
typically made of stone...
-
handle .284" bullets. However, the
distance from the case head to the
datum line on the
shoulder is
longer for the 7WSM,
preventing accidental chambering...
