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Service) is typically broadcast on a
VOR frequency at major
aerodromes (you can use it as an ID
on instrument rides), although it may
have its own channel.
As you can imagine, this relieves
ATC of a lot of work, and saves the
airways being clogged up, but they
will still give you the current
altimeter setting.
So, the pre-departure routine is to
listen to the ATIS, contact the
ground frequency (if there is one)
for taxi clearance, then tower for
takeoff, remaining there until you
clear the zone.
Where runways cross each other,
watch out for a Hold Short clearance,
which is intended to stop you
entering the wrong runway. It must
be read back.
When arriving, you still need the
ATIS before contacting ATC, which
should naturally be done before
entering the control zone. They will
need to know your identification,
aircraft type, position, altitude, ATIS
version, transponder code and
intentions. You should then be
cleared to the circuit or a position
for further clearance.
Standard Traffic Circuit – RAC 4.5.2
Make all turns to the left, arriving on
the upwind side (the other side of the
runway from the circuit itself), or at
45° to the downwind leg, at the
height published in the CFS (all
circuit details will be in there, too),
although the normal height is 1,000
feet (cross over from the upwind
side 500' above this). Only join
directly downwind if there is no
conflict.
For right hand circuits, apply the
opposite.
All the above, of course, can be
varied by ATC at any time.
Helicopters
Hover taxying is movement in ground
effect at speeds up to about 20 kts,
but more likely the normal walking
pace. The height may vary because
of external loads, but the pace will
be relatively slow.
Air Taxi is almost like flight, but
below 100 feet, often used when
ATC would like you to expedite your
movement to help with traffic flow.
If you've got wheels, it is usual to
taxi on the ground, but ATC aren't
always aware that you have them.
Heliports
The takeoff and landing area is based
on 1 ½ times the overall length of the
critical helicopter (the one it is
intended for). Surrounding it is an
area that must be kept clear of
obstacles (the safety area), at least 10
feet or 1 ½ times the critical
helicopter length beyond the takeoff
or landing area, whichever is greater.
They are identified with a white
letter H in the landing area, aligned
Air Law 197
with North (°M or °T, as
appropriate), sometimes with a
dashed white triangle round it to
make it more obvious. At a hospital,
the H will be inside a white cross.
On the apron, parking slots will have
two concentric circles, the inner one
being at least twice the wheelbase or
skid length, and the outer one based
on the length.
Lighting
A heliport used at night must be
illuminated with floodlights. If the
take-off and landing area is
rectangular, its boundary must have
at least 8 fixed yellow lights or retroreflective
markers (one at each
corner), no more than 13m (42.5
feet) apart. If circular, at least 5 lights
or markers must be placed up to
13m (42.5 feet) apart.
Floodlighting must illuminate the
perimeter, which may also have
lights or reflective tape in the same
pattern as the takeoff and landing
area. If possible, the aiming point
should have a triangle made out of 6
red lights.
If markers are used, a light source
must show the location of the
heliport, or, if there is only one path
for approach and departure, two
lights to show the approach
orientation. Preferred approach and
departure routes must be shown by
5 yellow or white omnidirectional or
sequenced flashing lights.
Radio-controlled lighting must
comply with Schedule II. Flare pots
may be used as temporary lighting.
Noise Criteria
All aeroplanes require a noise
certificate, except STOL aircraft
(needing a TODR less than 610
metres on a hard level runway at sea
level in ISA at MAUW).
You must follow any relevant noise
abatement procedures.
Runways & Taxiways
Details are declared by the Airport
Authority and published in the AIP,
although they can be found in many
other publications. This declared
distance is either the Take-off Run
Available (TORA) or Landing Distance
Available (LDA). Any areas at the
ends unsuitable to run on, but still
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