IFR Departure

AIM 5-2-9 – Departure Procedures

Ensures obstacle clearance, provided the airplane –


 Departure Plates 

 Takeoff Minimums 

FAR 91.175(f) – Clvil airport takeoff minimums


 Equipment 

 Requirements 

RADAR Departure Procedure

  • ATC radar vectors to an ATS route, NAVAID, or fix are used after departure
  • Annotated "RADAR REQUIRED"

RNAV Departure Procedure

  • For aircraft equipped with RNAV equipment GPS, VOR/DME, DME/DME
  • Require at least RNAV 1 performance
  • Annotated "RNAV"

Non-RNAV Departure Procedure

  • For use by aircraft equipped with ground-based navigation VOR, DME, NDB

 Departure Briefing 

 DEPARTS 

Departure Review  takeoff type, initial heading, first fix & course, clearance Establish Expectations  flying pilot, PIC, positive transfer of controls Plan & Considerations  weather, visibility, terrain, airfield, equipment Alternate  FAR 91.169 Runway Conditions & Length Trouble  rejected takeoff, engine failure Speak up

 Visual Departure 

 SID Standard 

 Instrument Departure 

  • Reduces pilot and controller workload by simplifying ATC clearances and radio communications
  • Must be cleared by ATC, pilots are not required to accept if assigned
  • Always printed graphically
  • May depict special radio failure procedures

 ODP Obstacle 

 Departure Procedure 

  • Provides only obstacle clearance
  • Printed either textually or graphically
  • No ATC clearance needed, pilots must ask to fly an ODP
  • Used if obstacle exists on a 40:1 departure flight path
  • Graphic ODPs are titled 'OBSTACLE'

 DVA Diverse 

 Vector Area 

  • Diverse Airport Departures provide obstacle clearance when a DP is not published
  • Initial radar vectors and climb gradients may be provided by ATC
  • All US airports with a published IAP but with no published DP meet the Diverse Airport criteria
  • This criteria requires that an airport has been evaluated for no obstacles within 200' altitude/NM up to a minimum IFR altitude
  • Minimum Climb Gradient

 VCOA Visual Climb 

 Over Airport 

  • A departure option for IFR aircraft in VMC
  • The pilot visually conducts climbing turns over the airport up to the published "climb to" altitude, from which he proceeds to the instrument portion of the departure
  • Designed to avoid obstacles beyond 3 SM from the departure end of the runway (DER), as an alternative to complying with climb gradients greater than the standard 200 ft/NM
  • Advise ATC as early as possible prior to departure of the intent to fly a VCOA
  • Published in the “Take-Of Minimums and (Obstacle) Departure Procedures” section of the TPP
  • May appear as an option on graphic ODPs