Law 2 - Holding Flashcards
What is the ICAO definition of a holding fix? (1)
A geographical location that serves as a
reference for a holding procedure
(ICAO PANS ATM (Doc 4444))
What is the definition of a holding procedure? (1)
A predetermined manoeuvre which keeps an aircraft within a specified airspace while awaiting further clearance
ACC Controllers may instruct an aircraft to hold along ATS routes or within defined Controlled airspace. True or False?
True
Reasons for Holding aircraft? (3)
- Weather
- Traffic Management
- Accident at airfeld. etc.
Standard holding pattern diagram
- One minute per part of a leg
- This hold is 4 mins
(Right hand shown, left hand symmetrical)
where may a holding fix be placed? (2)
- May be over a point source nav-aid
- Defined as an intersection of VOR radials or as a VOR/DME position
What does a holding axis need?
Where can it be placed? (2)
- Required inbound track to the holding fix
- VOR radials > Axis must lie on
one of the radials (may be orientated towards or away)
What are the specifications of a holding pattern - turn? (2)
- Turns made at Rate 1 (3°/sec) or with 25° of bank
- Aircraft holding >170kts may turn at less than 3°/sec
Holding speeds diagram
Speeds are in “IAS”
What are the aircraft approach category speeds? (5)
- Cat A - <91 kts IAS
- Cat B - 91-120 kts IAS
- Cat C - 121-140 kts IAS
- Cat D - 141-165 kts IAS
- Cat E - 166-210 kts IAS
What is VaT? (1)
Velocity at Threshold
What is the speed for VaT? (1)
1.3x the stalling speed (maximum certificated landing MASS)
What duration is the outbound leg? (2)
1 minute
1½ above 14,000ft
When does time commence on an outbound leg? (2)
- Abeam the fix
- Completion of outbound turn
(whichever is later)
Where DME is available, limiting the range for the outbound leg may be specified. True or False?
True
A limiting radial may also apply