-
1.
Aircraf
t: Any machine that
can derive support in the atmosphere from the
reactions of the air
other than the
reactions of the air against the earth’s surface.
2.
Regional air navigation agreement:
The phrase “regional air navigation
agreement” refers
to an agreement
approved by the council of ICAO normally on the
advice of a Regional Air
Navigation
Meeting.
3.
Air traffic service:
A
generic term meaning variously, flight information
service, alerting
service, air traffic
advisory service, air traffic control service
(area control service, approach
control
service or aerodrome control service).
4.
Visual
flight
rules
(VFR
)
:
VFR
are
a
set
of
regulations
which
allow
a
pilot
to
operate
an
aircraft
in
weather
conditions
generally
clear
enough
to
allow
the
pilot
to
see
where
the
aircraft is going. Specifically, the
weather must be better than basic VFR weather
minimums,
as specified in the rules of
the relevant aviation authority.
5.
Instrument Flight Rules(IFR): IFR are
regulations and procedures for flying aircraft
whereby
navigation and obstacle
clearance is maintained with referring only to the
aircraft instrument
only, pilot flying
IFR is responsible for navigation, obstacle and
traffic.
6.
Movement area:
The part of
the an aerodrome to be used for the takeoff,
landing and taxiing
of aircraft,
consisting of maneuvering area and the aprons.
7.
Pilot-in-
command:
The pilot who is designated by
the operator
and
responsible for the
operation and safety of the aircraft
during flight time.
8.
Call
sign
：
An aircraft call sign
is a group of alphanumeric characters used to
identify an
aircraft in air-ground
communication.
9.
Height:
The vertical
distance of a level, a point or an object
considered as a point, measured
from a
specified datum.
10.
Appropriate authority:
a)
Regarding flight over the high seas: the relevant
authority of the
State of
Registry.
b) Regarding flight other
than over the high seas: the
relevant
authority of the State having sovereignty over
the territory being over-flown.
11.
Cruising
level:
A level maintained during a
significant portion of a flight.
12.
Flight
level:
A surface of constant
atmospheric pressure which is related to a
specific pressure
datum, 1 013.2 hPa,
and is separated from other such surfaces by
specific pressure intervals.
Note
1.
—
A pressure type
altimeter calibrated in accordance with the
Standard Atmosphere:
a) when set to a
QNH altimeter setting, will indicate altitude;
b) when set to QFE altimeter setting,
will indicate height above the QFE reference
datum;
c) when set to a
pressure of 1 013.2 hPa, may be used to indicate
flight levels.
Note
2.
—
The terms
“height” and “altitude”, used in Note 1 above,
indicate altimetric rather
than
geometric heights and altitudes.
13.
Transition
altitude:
The
altitude
at
or
below
which
the
vertical
position
of
an
aircraft
is
controlled by
reference to altitudes.
14.
Altitude:
The
vertical
distance
of
a
level,
a
point
or
an
object
considered
as
a
point,