Instrument Procedures And Approaches Flashcards
VFR minima in a CTR
Ground vis not less than 5km
Or
Cloud ceiling not less than 1,500ft
Prior to any instrument departure
Must have clearance
Must have necessary plates available - if you don’t - ATC can read the departure plate inc missed aprch and loss of comms procedures
Obstacle clearance - instrument procedures
Based on the highest obstacle within 5nm of track
300m
600m for mountainous regions
Procedure design gradient
3.3%
Guaranteed obstacle clearance at the end of the DER
0
Straight dep
Initial dep track is within 15* of the alignment of the r/y
Based upon track guidance acquired within 20km from DER
Track guidance is provided by radio aids
Turning dep
Dep track req a turn of more than 15* of the r/y alignment - turning area is constructed
Based upon tack guidance acquired within 10km of the DER
Straight flight is assumed until reaching 120m above DER and a MOC of 90m
Omni directional dep
No track guidance req
A/c climb on extended r/y centreline - 120m before turns can be specified
At least 90m obstacle clearance will be provided before turns greater than 15*
SIDs start and end at
Start at DER and end at a point joining the ATS system
MSA on a plate
Depicted out to 25nm from the facility
To fly a SID a/c have to equip with
2 VORs
1 ADF
1 DME
An IFR flight can be cleared for a visual aprch if
Pilot can maintain visual ref to terrain
Or
Ceiling is at or above the approved aprch level
Or
Pilot reports at any time during the inst aprch that the met conditions make a visual aprch can be accomplished
Visual aprch separation shall be provided by
By ATC between cleared a/c and other arriving and departing a/c
For successive visual aprch
ATC will maintain separation until the pilot reports that he/she has the traffic in front in sight
Then the pilot will be instructed to maintain own separation from proceeding a/c
Instrument aprch design is dictated by
Terrain surrounding the aerodrome
Type of nav aids
Airspace restrictions
Type of ops
Most significant factor for instrument aprch
Speed (VAT)
Cat A and B a/c aprch speeds
Cat A - Vat = <91
Initial aprch speed range = 90/150
Final aprch speed range = 70/100
Max speed for VM(f) = 100
Cat B - Vat = 91/120
Initial aprch speed range = 120/180
Final aprch speed range = 85/130
Max speed for VM(f) = 135
Max speed for track reversal/racetrack procedures
Cat A = 110
Cat B = 140