CAP 413, Manual

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CAP 413 Radiotelephony Manual
Chapter 4 Page 24
3.3.6 An instruction to 'TAXI' leaves the pilot free to select the most appropriate method,
either ground taxi or air taxi. Pilots and controllers should use the term AIR TAXI or
GROUND TAXI when required to differentiate between air taxiing and ground taxiing
(for helicopters equipped with wheels).
NOTE 1: Air taxiing helicopters at aerodromes where ATC and AFIS are provided will
be issued with detailed taxi routes and instructions as appropriate to
prevent collisions with other aircraft and vehicles. Helicopters are expected
to follow procedures/routes on aerodromes appropriate to aeroplanes
unless otherwise authorised.
NOTE 2: ATC and AFIS units will normally avoid issuing instructions that result in
taxiing helicopters coming into close proximity with small aircraft or
helicopters and will normally give consideration to the effect of turbulence
from taxiing helicopters on arriving and departing light aircraft (ICAO).
3.3.7 For a helicopter taxiing, the instruction 'HOLD' shall indicate a requirement to come
to a standstill.
3.3.7.1 A helicopter air taxiing and instructed to 'HOLD', may hold in the hover or may touch
down and hold on the ground at the pilot’s discretion. If touch down is not authorised,
a helicopter may be instructed by the ATSU to 'HOLD IN THE HOVER'.
3.3.7.2 A helicopter ground taxiing and instructed to 'HOLD' shall hold on the ground, unless
a hover manoeuvre is specifically authorised or requested by the ATS unit.
3.3.8 ATC and AFIS will normally avoid issuing a frequency change instruction to a single-
pilot helicopter hovering or air taxiing. If required and whenever possible, control
instructions from the next ATS unit will be relayed until the pilot is able to change
frequency (ICAO).
3.4 Helicopter Phraseology for Take-Off and Landing (ATC only)
3.4.1 At aerodromes, helicopter take-offs and landings may not be restricted to designated
runways or landing areas. With appropriate permission helicopters may take-off and
land at any location on the aerodrome. At aerodromes with an air traffic control
service, all movements are subject to the permission of the ATC unit.
3.4.2 At aerodromes with air traffic control service, when helicopters land or take-off on the
manoeuvring area, and within sight of the VCR the terms 'CLEARED TO LAND' and
'CLEARED FOR TAKE-OFF' shall be used to authorise the manoeuvres.
3.4.3 At aerodromes with air traffic control service, when helicopters land or take-off at
locations not on the manoeuvring area (e.g. apron, maintenance area, sites adjacent
the aerodrome), or locations not in sight of the VCR, or unlit locations at night, the
appropriate phrase 'LAND AT YOUR DISCRETION' or 'TAKE-OFF AT YOUR
DISCRETION' shall be used to authorise the manoeuvres. Relevant traffic information
on other aircraft (airborne or on the ground) shall also be passed.
3.4.4 The term 'TOUCH DOWN' shall be used to describe an aircraft (helicopter or fixed-
wing) coming into contact with the surface in accordance with normal operation. A
clearance to land leaves the pilot of a helicopter free to either enter a low hover, or to
touch down, as appropriate.
3.5 Helicopter Hover Phraseology Examples (ATC and AFIS only)
Borton Tower, G-ABCD, request
lift G-ABCD, Borton Tower, lift and
hover, surface wind 040 degrees
6 knots
31 March 2011