1. Separation Standards - Wake Turbulence

Question 1

Hwo does the UK conform to WTC?

Answer 1

The United Kingdom conforms, in general, to
the ICAO standards on wake turbulence.
However, experience at those UK aerodromes
where an air traffic control service is provided
and wake turbulence separation minima are
applied, has shown that certain modifications to
the relationship between the MCTOM of an
aircraft and the wake turbulence separation are
advisable for the safety of operations.

Question 2

Which documents can you find the WTC?

Answer 2

The UK wake turbulence categories are detailed
within Appendix B to the MATS Part 1 (CAP 493)
and AIC Pink ‘Wake Turbulence’.
These wake turbulence categories are used in
the application of wake turbulence separation
minima as detailed within Section 1 Chapter 3 of
the MATS Part 1 (CAP 493).

Question 3

How many categories for UK WTC?

Answer 3

In the UK, aircraft are divided into six categories
for approach, and five categories for departure,
according to their maximum certificated take-off
mass (MCTOM) in kilograms (KG)

Question 4

Condense
Uk procedures

Answer 4

SUPER category (J) is assigned to three aircraft types by the
competent authority. The three types are A380-800,
AN124 Ruslan and AN225 Mriya.
The MEDIUM category is not split into UM and LM for the
purposes of wake turbulence separation on departure.
Upper Medium (UM), Lower Medium (LM) and Small (S)
are UK categories only and are not to be entered onto the
FPL under item 9.
There is some evidence that, per kilogram of gross mass,
the wake turbulence generated by a helicopter is more
intense than that of a fixed-wing aircraft. Consequently, in
the UK, all helicopters with a MCTOM greater than or
equal to 7,000 KG and less than or equal to 40,000 kg are
classified as SMALL for the purposes of providing wake
turbulence separation on approach and departure.

All tilt-rotor aircraft with a MCTOM greater than
or equal to 7,000 KG and less than or equal to
40,000 kg are classified as SMALL for the
purposes of providing wake turbulence
separation on final approach and departure.

Question 5

Where should the WTC be input?

Change Question

Answer 5

The wake turbulence category of an aircraft
should be indicated on the flight plan (item 9)
as: ‘J’, ‘H’, ‘M’ or ‘L’, with flight plans being
completed in accordance with AIP ENR 1.10 and
ICAO Doc 4444 PANS-ATM.

Question 6

R/T Procedures

Answer 6

For aircraft in the SUPER or HEAVY wake
turbulence category (i.e., those aircraft with a
MCTOM of 136 000 KG or more), the word
‘Super’ or ‘Heavy’ shall be included, as
appropriate, immediately after the aircraft call
sign in the initial radiotelephony contact
between such aircraft and ATS units.
Where specific aircraft have been reclassified
from the HEAVY category, this initial contact
announcement will not be required in the UK, as
these aircraft types will be considered as
MEDIUM (UPPER MEDIUM on approach).

Question 7

come up with question

Answer 7

ATC shall apply the minima as prescribed above,
irrespective of any pilot request for reduced
wake turbulence separation. ATC does not have
the discretion to reduce wake turbulence
separation minima.

Question 8

What is the correct R/T?

Answer 8

“(Callsign)…Report final number……(position in traffic).
Follow the……(type) at….(distance) final. Caution wake
turbulence, the recommended distance (is)……miles”

Question 9

What is the correct R/T for departure wake turbulence?

rewrite Q

Answer 9

“(Callsign) Runway (designator) line up and wait.
(number) minutes delay due wake turbulence.”

“(Callsign) hold position. (number) minutes delay due
to wake turbulence.”