AGA Flashcards
What is the aerodrome traffic circuit? (ICAO)
The specified path to be flown by aircraft operating in the vicinity of an aerodrome
What is a runway holding position?
A designated position intended to protect a runway, an obstacle limitation surface, or an ILS/MLS critical/sensitive area at which taxiing aircraft and vehicles shall stop and hold, unless otherwise authorized by the aerodrome control tower.
What is the manoeuvring area?
That part of an aerodrome to be used for the take-off, landing and taxiing of aircraft excluding aprons
What is the movement area?
That part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, consisting of the manoeuvring area and the aprons.
What is a runway?
A defined rectangular area on a land aerodrome prepared for the landing and take-off of aircraft
What is a non-instrument runway?
A runway intended for the operation of aircraft using visual approach procedures
What is an instrument runway?
One of the following types of runway intended for the operation of aircraft using instrument approach procedures.
Either a precision or non-precision approach.
What is a non precision approach runway?
An instrument runway served by visual aids and a non visual aid providing at least directional guidance adequate for a straight-in approach. No vertical guidance
What is a precision approach runway?
One which has non visual aids that provided guidance in the lateral and vertical planes
What is the runway width required for a runway code 1A?
18m
What is the runway width required for a runway code 1B?
18m
What is the runway width required for a runway code 1C?
23m
What is the runway width required for a runway code 2A?
23m
What is the runway width required for a runway code 2B?
23m
What is the runway width required for a runway code 2C?
30m
What is the runway width required for a runway code 3A?
30m
What is the runway width required for a runway code 3B?
30m
What is the runway width required for a runway code 3C?
30m
What is the runway width required for a runway code 3D?
45m
What is the runway width required for a runway code 4C?
45m
What is the runway width required for a runway code 4D?
45m
What is the runway width required for a runway code 4E?
45m
What is the runway width required for a runway code 4F?
60m
For a runway code what does the number and letter mean?
No.=runway length
Letter= width requirement.
What runways are provided with runway shoulders?
Runways code D or E except where the runway is 60m or more.
What weight must the runway shoulder be capable of supporting?
The weight of the aircraft and vehicles that will be using the runway
Are runway shoulders symmetrical?
Yes
What width must a runway with shoulders be?
60m
What is the aerodrome elevation?
The elevation of the highest point on the landing area.
What is an apron?
A defined area, intended to accomodate aircraft for the purposes of loading or unloading passengers, mail or cargo, fuelling, parking or maintenance.
What is the aerodrome reference point?
The designated geographical location of an aerodrome.
Usually the centre of the longest runway.
Define taxiing
Movement of an aircraft on the surface of an aerodrome under its own power, excluding take-off and landing.
What is a taxiway?
A defined path on an aerodrome established for the taxiing of aircraft and intended to provide a link between one part of the aerodrome and another.
Includes;
Apron Taxiways
A/C stand taxilane
Rapid exit taxiway
What is an aircraft stand taxilane
A portion of an apron designated as a taxiway and intended to provide access to aircraft stands only.
What is an apron taxiway?
A portion of a taxiway system located on an apron and intended to provide a through taxi route across the apron
What is a rapid exit taxiway?
A taxiway connected at an acute angle and designed to allow landing aeroplanes to turn off at higher speeds than are achieved on other exit taxiways and thereby minimizing runway occupancy times.
What are the normal points for aircraft to receive clearances and where shall they make reports?
When can you clear another aircraft for take-off? ICAO
When the preceding aircraft has made its turn
Define a hotspot
A location on an aerodrome movement area with a history or potential risk of collision or runway incursion, and where heightened attention by pilots/drivers is necessary.
Who designates hotspots on an aerodrome?
The aerodrome operator
What is a runway strip?
An area enclosing a runway or any assocaited stopway.
It is there to reduce the risk of damage to an aircraft running off the runway by providing graded (smoothed) area meeting specified longitudinal, transvers slope and bearing strength requirements.
It should be clear of obstacles except for those that must be there eg PAPI’s
What are the dimensions of a runway strip?
Depends on the coding and the function of the runway it protects.
The more precise the function the greater the area.
Precision/instrument= Strip encompasses LDA
Visual= Narrower strip encompassing ASDA
What are the dimensions of a runway cleared and graded area?
What is a cleared and graded area?
An area within a runway strip which contains only frangible obstacles which will not aggravate an aircraft coming off the runway.
Their dimensions are determined by the function of the strip within which they lie.
What happens to a runway when temporary obstacles are on it?
It should be closed or its declared distances restricted if the obstacle is within the cleared and graded area.
Is take-off a visual maneouvre?
Yes
When would you expect an aerodrome to have taxiways?
- When they are necessary for the safe and orderly movement of a/c on the ground.
- When it is necessary for a/c to follow certain paths to avoid protected areas or surfaces.
What is the taxiway width determined by?
By the type of aircraft using the A/D
Will be wider where it curves to account for the turning characteristics of a/c
What protection are taxiways offered in terms of strip and cleared and graded areas?
The same as the runways.
What bearing strength will a strip have?
The same as the runways initially but this will decrease as you head away from the runway in order to retard the progress of any aircraft that ground swings.
If there is an obstacle in the cleared and graded area can an a/c take-off or land?
no
Where would you find the taxiway width?
In the code letter in the aerodrome reference code.
What minimum distance must holding bays and holding positions be from the centreline of the runway?
They must be no closer than the edge of the cleared and graded area, on precision runways this distance is increased to avoid;
- Interference with ILS sensitive areas
- Penetration of Obstacle Free Zone
- Holding a/c be accountable in calculation of OCH and OCA
What aircraft are accounted for in the ACN/PCN system?
A/C above a MTOM of 5,700kg
What is the PCN?
Pavement Classification Number
A system (along with the ACN) that classifies the pavement bearing strength of paved surfaces on the A/D
What is ACN?
Aircraft Classification Number
A number expressing the relative effect of an a/c load on a pavement for a specified sub-grade
Published in two values;
- MTOM
- Lower representative operating empty weight.
How is PCN coded?
A five part code consisting of;
- The Numerical Value calculated
-
The type of pavement
R= Rigid
F= Flexible -
The pavement sub-category
A= High
B= Medium
C=Low
D= ultra low -
The maximum tyre pressure authorised for the pavement
W= high, no limit
X= Medium =<217psi
Y= low, =<145psi
Z= very low =<73psi -
Pavement evaluation method
T=Techinical Evaluation
U=By experience of a/c using the pavement.
What would PCN 80/R/B/W/T mean?
80 Rigid, Medium pavement sub-category, no max tyre pressure, determined by technical evaluation
What would PCN 42/F/A/X/T mean?
42 Flexible, High pavement sub-category, medium tyre pressure, determined by technical evaluation
What would PCN 65/F/B/W/T mean?
65 Flexible, Medium pavement sub-category, no max tyre pressure, determined by technical evaluation
What would PCN 83/R/A/W/T mean?
83 Rigid, high pavement sub-category, no max tyre pressure, determined by technical evaluation
What would PCN 14/F mean?
14 Flexible
What would PCN 53/F/B/X/U mean?
53 Flexible, Medium pavement sub-category, medium tyre pressure, determined by pilot experience
What would PCN 78/R/B/W/T mean?
78 Rigid, Medium pavement sub-category, no max tyre pressure, determined by technical evaluation
What is a stopway?
A defined rectangular area on the ground at the end of the take-off run available prepared as a suitable area in which an aircraft can be stopped in the case of an abandoned take-off.
What bearing strength does a stopway need?
Lower than the runway but still needs to be able to support the weight of the aircraft using the A/D, must be the same width as the runway
What is a clearway?
A defined area on the ground under the control of the apporpriate entity, selected or prepared as a suitable area over which an aeroplane may make a portion of its initial climb to a specified height.
Basically an area cleared from obstacles for the aircraft to climb from its take-off without hazard.
Declared distances
What limits the length of a clearway?
The point where either a upstanding obstacle (excluding frangible objects less than 0.9m high) is located or the terrain projects through a 1:80 slope, whichever is first.
What is a starter extension?
An area at the start of a take-off run where an a/c can initiate the slow portion of its take-off roll
The strip is narrower around a started extension.
What is a RESA?
A runway end safety area
An area designed to minimise risks to a/c undershooting or overrunning a runway. Provided at both ends of the strip for all code 3 & 4 runways and for Instrument Code 1 & 2 runways.
What runways require a RESA?
All code 3 & 4
Instrument code 1 & 2
What is the normal length of a RESA and what normally limits it?
90m for a code 3 & 4 Runway
30m for code 1 & 2 (when instrument)
ILS localizer or boundary fence normally limits RESA, where this is too close than the declared distances must be reduced to accomodate a RESA like in the picture one runway has a longer LDA than the other because of this.
What width must a RESA be?
Twice as wide as the runway and symetrically disposed about the extended centreline
Does the RESA have to have the same bearing strength as a runway?
no.
What is the TORA?
The Take-Off Run Available
This is the length of runway available and suitable for the ground run of an aeroplane taking off. In most cases it will correspond to the length of the runway pavement.
What is the TODA?
The Take-Off Distance Available
TORA+ Clearway
If no clearway than obviously the TODA will equal the TORA
What is the ASDA?
Accelerate Stop Distance Available
TORA+ Stopway
What is the LDA?
Landing distance available
This is the length of the runway which is available and suitable for the ground landing run of an a/c
Example of RESA
Pilots of visiting aircraft report here.
Taxi only in accordance with ATC instructions
Runway in use is.
Area, normally grass, reserved for landing & take off of a/c
Area for dropping of tow-ropes or similar objects