Week 1 Flashcards
What is the difference between primary and secondary radars?
Primary relies on reflected energy for detection, secondary transmits responses to ‘interrogations’.
Interrogating radars operate at what frequency?
1030Mhz
Transponders operate at what frequency?
1090Mhz
Military a/c uses IFF in what modes?
1 - 5
Civil a/c use SSR in which modes?
A, B, C and S
Which mil IFF and civ SSR modes are the same?
IFF mode 3 and SSR mode A
3/A
What is the PROWORD for a 4 digit code?
Squawk
What do the digits in a SQUAWK represent?
- The first two digits - agency controlling the a/c
- The second two digits - specific to that a/c
What are the civil modes of operation?
A - 4096 codes
B - backup for A
C - altitude info
S - 24 bit unique a/c address
What are the military modes of operation?
1 - platfrom function 2 - platform ID 3 - equivalent to mode A 4 - encrypted response 5 - encrypted data transfer
What are the main three conspicuity codes (SQUAWKS)?
7700 - emergency
7600 - loss of comms
7500 - unlawful interference
What is FRUIT?
False Returns Unsynchronised In Time
Which mode helps to reduce FRUIT?
Mode S
What does TCAS stand for?
Traffic Collision Avoidance System
What are the two types of TCAS warnings?
Traffic and resolution.
What does a Resolution Advisory (RA) give?
Climb/decent instructions
What is the purpose of a Traffic Advisory (TA) warning?
To give the crew a ‘heads up’ warning of approaching aircraft.
A TCAS warning should be actioned …. advising the controller.
BEFORE
Define an FIR.
It is an area of defined dimensions within which flight info and alerting services are provided.
What is the purpose of an Flight Info Service (FIS)?
To give advice and info useful for the safe and efficient conduct of flight.
What is the purpose of an Alerting Service?
It is provided to notify appropiate organisations regarding a/c in need of search and rescue (SAR) aid and to assist such organisations as required.
How is the FIR divided?
- Surface to FL245
- FL245 to FL660
What are the two ATCCs?
London (Swanwick) and Scottish (Prestwick)
What are responsibilites of Swanwick Mil?
- distress and diversion services
- FIS
- Air Defence notification
What are the responsibilites of LATCC (mil)?
- low flying co-ordination
- range co-ordination
- aeronautical info (military)
- air movements and flight plan reception
What are 3 main classes of airspace?
A - most airways below FL195
C - upper airspace
G - all other airspace
How is controlled airspace divided?
Control areas and control zones.
What is a CTZ?
Control Zone - controlled airspace extending upwards from the gorund to a specific upper limit.
What is a MATZ?
Military Aerodrome Traffic Zone - defined dimensions in which military ATC apllies to military a/c.
What are the dimensions of a MATZ and its stub?
MATZ: 5nm radius and 3000m height
Stub: 5nm long, 4nm wide, 1000-3000m height.
What three catergories are control areas split?
- control area (CTA)
- terminal control area (TCA/TMA)
- airway.
What is a restricted area?
An airspace of defined dimensions above the land or water where flight of an a/c is restricted in accordance with specified conditions.
What is a prohibited area?
An airspace of defined dimensions above land or water within which the flight of a/c is prohibited.
What is a danger area?
An airspace of defined dimensions within which activities dangerous to flight may exist at specific times.
What is a TRA?
Temporary Reserved Area - FL195 - FL245. Military can operate VFR with tactical freedom and operate during published hours.
What is TASCOMM?
Terrestrial Air Sea Communications system.
What is CAS-T?
Controlled Airspace - Temporary.
What is Provost Marshall areas?
PMP (prohibited) or PMR (restricted) areas are airspace of defined dimensions established by the RAF PM where military flight is prohibited or restricted IAW specific conditions.
Define FOD?
Foreign Object Debris - any material or loose article, that orignates from any source, that can cause damage to the a/c or its equipment.
What are the three main aims of FOD prevention?
- Practices
- Processes
- Design
What is the aim of flight safety?
A collective endeavour to operate in the air environment safely where a good safety culture depends on individuals at all levels.
What are the four worlds?
- Flyings sqns
- ATC, ABM and Ops
- Engineers
- Direct support services
What are the RA series?
1000 - general regs 2000 - flying regs 3000 - air traffic management 4000 - continuing airworthiness 5000 - design and modification
Define an accident.
An occurence which results in a person being killed or suffering a major injury or an a/c sustaining Cat 4 or 5 damage.
Define an incident.
An air safety occurence which has not resulted in an accident but a/c sustains Cat 1-3 damage or a person injured for 3+ days.
A/C damage - what is Cat 1?
Repairable within the custodians capabilites.
A/C damage - what is Cat 2?
Repairable with the custodians forward maintenance organisation capabilites.
A/C damage - what is Cat 3?
Repairable on site, beyond forward repairs - specialists.
A/C damage - what is Cat 4?
Repairable but requires special facilities or equipment off-site.
A/C damage - what is Cat 5?
Beyond economic repair, instructional use, scrap or missing.
What is a reporting culture?
Cultivating an atmosphere where people have the confidence to report safety concerns without fear or blame.
What is a learning culture?
An organisation that is able to learn from its mistakes and make changes.