Departures Flashcards
DP
Departure procedures
-Ensure obstacle clearance
-crossed the end of runway at least 35ft
-Reaches 400ft agl before turning left
-Climbs at least 200ft per nm or as published.
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FPM/FPNM conversion
FPNM X Groundspeed/60 = FPM
ODP
Obstacle departure procedure
-provides obstacle clearance only
-Printed textually or graphically
-Graphic odp’s are titled obstacle
SID
Standard instrument procedure
-Provides obstacle clearance and reduces pilot/controller workload by simplifying atc clearances and minimizing comms.
-May include radio failure procedures
-Are always published graphically
IFR Takeoff Minimums
None for part 91
Part 121,125,129,135
Prescribed take off mins for the runway or if none-
1-2 engines 1sm visibility 5000 rvr
more than 2 engines 1/2sm visibility 2400 rvr
Diverse departure procedures
Ensures an aircraft can climb and turn in any direction from a runway while maintaining proper obstacle clearance .
-All departures are intially assessed using a 40:1 obstacle celarance surface.
-The Rrequired Obstacle Clearance expands along the departure route until reaching 1000ft or 2000ft mountainous area.
-The assessment is limited to 25nm or 46 miles mountains from departure.
-If runway fails to meet the DDP an ODP is developed.
Diverse vector area
Allows radar vectors in lieu of the pilot flying an odp
-Allows atc to vector aircraft below the minimum vectoring altitude or minimum ifr altitude immediately after takeoff.
-Found in the ODP section of the TPP
Climb Over Airport (VCOA)
Departure option for ifr aircraft in VMC
-Pilot visually conducts climbing turns over the airport up to the published climb to altitude and then proceeds to the instrument departure.
-Designed to avoid obstacles beyond 3sm from the departure end of the runway as an alternative to complying with climb gradients greater than 200 fpnm.
-Advice atc early as possible prior to departure of intention
- Published in the takeoff mins and odp procedures of the TPP
