Communications and Traffic Pattern Operations. Jer/ Eberhard Mountain Flying Aviation, LTD Greeley – Weld County Airport, Greeley, Colorado – GXY Fort Collins – Loveland Airport, Loveland, Colorado – FNL FAA Safety Team Member, with DEN FSDO. [email protected] 970 231-6325 CELL. - PowerPoint PPT Presentation
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Aeronautical Information ManualAeronautical Information Manual
AIM pilot/controller glossary AIM 4-1-9(g)(1):g. Self-Announce Position and/or Intentions 1. General. Self-announce is a procedure whereby pilots
broadcast their position or intended flight activity or ground operation on the designated CTAF. This procedure is used primarily at airports which do not have an FSS on the airport. The self-announce procedure should also be used if a pilot is unable to communicate with the FSS on the designated CTAF. Pilots stating, "Traffic in the area, please advise" is not a recognized Self-Announce Position and/or Intention phrase and should not be used under any condition.
Ground Station Call SignsGround Station Call Signs Pilots, when calling a ground station, should begin with the name of
the facility being called followed by the type of the facility being called as indicated in AIM Table 4-2-1.
Table 4-2-1 (Updated for Colorado). Jer/------------------------------------------------------------------- Facility Call Sign -------------------------------------------------------------------Airport UNICOM "Fort Collins Loveland UNICOM“ FAA Flight Service Station (FSS) "Denver Radio" FAA Enroute Flight Advisory Service "Denver Flight Watch" Real-time, enroute Weather - EFAS Airport Traffic Control Tower "Centennial Tower" Clearance Delivery Position (IFR) "Centennial Clearance" Ground Control Position in Tower "Centennial Ground" Radar or Nonradar Approach "Denver Approach" Control Position Radar Departure Control Position "Denver Departure" FAA Air Route Traffic Control Center "Denver Center" -------------------------------------------------------------------
Numbers: AIM Numbers: AIM 4-2-8 Figures4-2-8 Figures A. Indicate hundreds and thousands in round numbers, as for ceiling
heights, and upper wind levels up to 9,900 shall be spoken in accordance with the following:Example: 500 - FIVE HUNDREDExample: 7,500 - SEVEN THOUSAND FIVE HUNDRED
NOT: “seven point five” or “fiver”.
B. Numbers above 9,900 shall be spoken by separating the digits preceding the word "thousand."Example: 10,000 - one zero thousandExample: 13,500 - one three thousand five hundred
NOT: “thirteen point five” or “thirteen five”, or “ten even”.
C. Transmit airway or jet route numbers as follows:Example: V12 - VICTOR TWELVEExample: J533 - J FIVE THIRTY-THREE
NOT: “victor one two”, or “jet five three three”.
D. All other numbers shall be transmitted by pronouncing each digit. Example: 10 - one zero. Not: “ten”.
Numbers: AIM 4-2-8, continuedNumbers: AIM 4-2-8, continuedWhen a radio frequency contains a decimal point,
the decimal point is spoken as "POINT“. Example: 122.4 - ONE TWO TWO POINT FOUR
NOTE - ICAO procedures require the decimal point be spoken as "DECIMAL," and FAA will honor such usage by military aircraft and all other aircraft required to use ICAO procedures.
Altitudes And Flight LevelsAltitudes And Flight LevelsAim 4-2-9Aim 4-2-9
A. Up to but not including 18,000 feet MSL, state the separate digits of the thousands plus the hundreds if appropriate.Example: 12,000 - one two thousandExample: 12,500 - one two thousand five hundred
B. At and above 18,000 feet MSL (FL 180), state the words "flight level" followed by the separate digits of the flight level.Example: 190 - flight level one NINER zeroExample: 275 - flight level two seven five
Directions Aim 4-2-10Directions Aim 4-2-10The three digits of bearing, course, heading, or
wind direction should always be magnetic. The word "true" must be added when it applies.
EXAMPLE: (always state three digits)(Magnetic course) 005 - ZERO ZERO FIVE(True course) 050 - ZERO FIVE ZERO TRUE(Magnetic bearing) 360 - THREE SIX ZERO(Magnetic heading) 100 - HEADING ONE ZERO ZERO(Wind direction) 220 - WIND TWO TWO ZERO
Traffic Patterns: DefinitionsTraffic Patterns: Definitions Traffic Pattern: Means the traffic flow that is
prescribed for aircraft landing at, taxiing on, or taking off from, an airport (FAR 1).
Components: AIM 4-3-2– Upwind Leg, parallel to the runway in direction of landing– Crosswind Leg, right angles to runway off its takeoff end– Downwind Leg, parallel to the runway, opposite dir of landing– Base Leg, right angles to runway, off approach end– Final Approach, direction of landing along extended centerline– Departure Leg, outbound to beyond 1/2mi and w/in 300’ of
pattern altitude before turn in the pattern. Else above pattern. Note: There is NO “crossing midfield”. Why?
Why do YOU remember 800’?Why do YOU remember 800’? Your instructor PROBABLY learned at an airport
with an 800' pattern, hence you were taught to "turn at 500 feet AGL".
Why? Because they were taught (properly):
– “If remaining in the traffic pattern, commence turn to crosswind leg 1/2mi beyond the departure end of the runway within 300 feet of pattern altitude”… but didn’t tell you WHY!
Hence: a turn at 500 AGL for an 800 AGL pattern. Hence: a turn at 700 AGL for a 1000 AGL pattern!
Is it CURRENTLY 800 or 1000?Is it CURRENTLY 800 or 1000? Caution... many airports FORMERLY had a
published minimum pattern altitude of 800' AGL. CHECK YOUR AIRPORT in the AFD.
AIM 4-3-3 (Examples) state: Enter pattern in level flight, abeam the midpoint of the runway, at pattern altitude. 1,000' AGL is minimum recommended pattern altitude unless established otherwise.
Where is this established? Airport Facility Directory (AFD).
Who establishes it? The airport manager, in a letter to the FAA, as published in the AFD.
With a review of the AIM information, will you please consider:
Adjusting your operations with your new knowledge to not begin a turn until you are “within 300 feet of pattern altitude”, and “½ mile beyond the departure end of the runway”?
Operate a 1000 AGL pattern (Note, it is easier to compute than adding 800 feet).
Overhead join? Britain, not USA!Overhead join? Britain, not USA!
Visual Clearing Procedures:Traffic Pattern: Entries into traffic patterns while descending create specific collision hazards and should be avoided. AIM 4-4-14(d).
Why fly over an airport when you can easily fly around and join on the 45?
Discussion (not heated, please)! (limit 10 min, >> I << will lead it.)
Concrete examples of how to talk on Concrete examples of how to talk on the radio:the radio:# Get airport information: Cessna Skyhawk N1720Z
Fort Collins - Loveland Unicom (READ from chart)Skyhawk Two Zero Zuluon the ramprequest airport advisory Fort Collins - Loveland (READ from chart)
# Taxi to the runway Fort Collins - Loveland Traffic (Note new receiver)Skyhawk Two Zero Zulu on the ramp taxiing for departure 33 Fort Collins - Loveland
# Returning to airport, on downwindFort Collins - Loveland trafficSkyhawk Two Zero Zululeft downwind 33number 2 to land, traffic in sight Fort Collins - Loveland
# Nearby airport, most people get WRONG (Airport name different than location name) Here is correct one:MacElroy TrafficSkyhawk Two Zero Zulu10 eastplanning right traffic 27Kremmling
We have discussed proper radio phraseology.Listen, and laugh, and help your friends
improve their communications!Be in the pattern, communicating.Be SAFE!Did you learn something that you can use?Discussion/comments?Then where to get more information.
– AC 90-42F traffic advisory… with control tower…– AC 90-45F traffic advisory… without control tower…– AC 90-66A recommended standard traffic patterns…