曝光台 注意防骗
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nominated track (where the track guidance is provided by a radio navigation aid),
or 15° each side of the nominal track (where no track guidance is provided) to a limit of
50NM each side of the track, thence paralleling track to abeam the destination and then
converging by a semicircle of 50NM radius centred on the destination. On shorter routes,
where these lines are displaced by less than 50NM abeam the destination, they shall
converge by a radius based on the lesser distance. Where the lines thus drawn come at
any time within the coverage of an en route or destination radio aid the aircraft is
equipped to use, they will converge by straight lines to that aid. The minimum angle
of convergence which must be used in this case is 10.3° each side of track.
AID AID
10.3°
10.3°
5NM
5NM
50NM
50NM
5NM
5NM
RATED COVERAGE
LONG LEG
>10.3°
>10.3°
LONG LEG - NAVAID TO NAVAID
289
Civil Aviation Safety Authority Australia
OPERATIONS
09/2001
3
LOWEST SAFE ALTITUDE
SECTION
NIGHT VFR
AID NOAID
15°
15°
5NM
5NM
50NM
50NM
5NM
5NM
RATED COVERAGE
LONG LEG
>10.3°
>10.3°
LONG LEG - NOAID TO NAVAID
AID AID
10.3°
10.3°
5NM
5NM
5NM
5NM
RATED COVERAGE
SHORT LEG
>10.3°
>10.3°
SHORT LEG - NAVAID TO NAVAID
290
Civil Aviation Safety Authority Australia
OPERATIONS
09/2001
3
LOWEST SAFE ALTITUDE
SECTION
NIGHT VFR
NO AID NO AID
15°
15°
5NM
5NM
50NM 50NM
50NM
5NM
5NM LONG LEG
LONG LEG - NOAID TO NOAID
AID NO AID
>10.3¡
15¡ 5NM
15¡
5NM
5NM
>10.3¡
5NM
RATED COVERAGE
SHORT LEG
SHORT LEG - NOAID TO NAVAID
291
Civil Aviation Safety Authority Australia
OPERATIONS
09/2001
3
LOWEST SAFE ALTITUDE
SECTION
NIGHT VFR
4. An aircraft must not be flown at night under the VFR at a height less than 1,000FT
above the highest terrain or obstacle located within 10NM of that aircraft in flight.
However, an aircraft which has positively determined by visual fix that a critical
obstruction has been passed may nevertheless descend immediately to a lower
altitude, provided that the required obstacle clearance above significant obstructions
ahead of the aircraft is maintained.
Notwithstanding the above, an aircraft which is being flown under the VFR by night
and which is appropriately equipped with a radio navigation system, may elect to
provide for terrain clearance as specified in para 2.
The obstacle clearance which is determined in accordance with the above paragraph
must be maintained by an aircraft which is flown under the VFR by night except:
• during take-off and climb in the vicinity of the departure aerodrome;
• when the destination aerodrome is in sight and descent can be made within the
prescribed circling area of 3NM radius of the destination;
• or when being radar vectored.
NO AID
15° 5NM
15°
5NM
5NM
5NM SHORT LEG
NO AID
SHORT LEG - NOAID TO NOAID
292
Civil Aviation Safety Authority Australia
OPERATIONS
09/2001
3
LOWEST SAFE ALTITUDE
SECTION
NIGHT VFR
EQUIPMENT OF AIRCRAFT FOR VFR FLIGHT (CAR 174A)
• CASA may issue instructions specifying:
A. the radio communication systems; or
B. the radio navigation systems; or
C. the secondary surveillance radar transponder equipment, that must be
carried on, or installed in, an aircraft before it undertakes a V.F.R. flight.
• Subject to paragraph 5, an aircraft must not be flown under the V.F.R. unless it is
equipped with:
A. suitable flight instruments as directed by CASA; and
B. the equipment specified in instructions issued under paragraph 1 in
relation to the aircraft.
• Subject to the following paragraph, an aircraft shall not be flown under the V.F.R. by
night unless, in addition to the equipment referred to in subregulation (1A), it is
equipped with:
A. a landing light;
B. illumination for all instruments and equipment used by the flight crew,
being instruments and equipment that are essential for the safe operation
of the aircraft;
C. lights in all passenger compartments;
D. an electric torch for each crew member; and
E. such other equipment as CASA directs in the interests of safety.
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VFR Flight Guide(105)
