Study Session 6 Flashcards
CTAF
Common traffic advisory frequency
Carries out airport advisory practices for an airport without an operating control tower
Can be UNICOM, MULTICOM, FSS, or tower frequency
Pilots monitor CTAF 10 NM from airport (inbound or outbound)
UNICOM
Aeronautical advisory communications station
Can be weather, conditions, runway information, etc.
advisories to airports without an FSS or tower
Call CTAF UNICOM if you want to actually talk to a person
ATIS
Automatic terminal information service
Continuous transmission
Latest weather report and conditions
Relieves ground controllers and approach controllers workload
Absence of sky and visibility means ceiling is above 5,000 ft and more than 5 statute miles
MULTICOM
Used for self announced procedures at airports without ATC or FSS or UNICOM
Will be identified on charts as CTAF
Airport with an operating tower has
Ground control - taxiing
Tower control - active runway and vicinity of airport
Sometimes approach and departure control
ATIS
Sometimes clearance delivery - obtain departure instructions before contacting ground control
Most important factor in pilot controller communications
Understanding
Spoken numbers below 9,900
Separated out
9,900
Niner thousand niner hundred
Spoken numbers above 9,900
Separated out
10,000
One zero thousand
13,500
One three thousand five hundred
Spoken airway numbers
Kept together
V12 = Victor twelve
Miscellaneous spoken numbers and decimals
Separated
10 = one zero
Say decimal point if a radio frequency has a decimal in it
Spoken Flight levels and altitude
Above 18,000 ft separate out numbers
12,500 = one two thousand five hundred
At and above 18,000 say flight level followed by separate digits
19,000 = flight level one niner zero
Spoken directions
Will always be magnetic unless stated
050 true course = zero five zero true
Wind velocity has speed always included with direction
Three four zero at one zero
ATC give wind in magnetic while FSS gives wind in true
Spoken speeds
Separate digits followed by knots
250 = two five zero knots
Aviation time
24 hour clock
Coordinated Universal Time (UTC)
Zulu (Z) may denote UTC
24 hr clock is also used in radio transmissions - separate out numbers