Instrument Procedures - Approaches Flashcards
How many categories of aircraft exist?
5 categories
What is approach speed based on?
VAT Speed
How is VAT speed calculated?
1.23 x VS1G
Aircraft Categories and approach speeds.
A - <91
B - 91/120
C - 121/140
D - 141/165
E - 166/210
MSA / TAA OBS Clearance
300m/ 1000ft within 25nm of navaid for approach.
When can we descend below MSA?
ARPT/TERR in visual contact
Aircraft is being radar vectored
Aircraft is flying a published procedure.
Precision Approaches
Runway based
ILS, MLS, PAR
Maximum half scale deflection
DH/DA
Non Precision Approaches
Aerodrome based.
MDA/MDH
Which is higher, MDA or OCH/OCA?
MDA.
Who sets OCH/OCA?
Set by the State
Glideslope is lost during an ILS approach. What happens?
Becomes non-precision approach, must go around.
What must be passed over during a missed approach?
Missed Approach point (MAPt)
Visual Approach
Part of an instrument approach.
Met conditions allow a visual approach and landing to be accomplished.
MUST follow instrument approach profile
Is there need for VMC in a visual approach?
No need for VMC.
Who is responsible for separation during a visual approach?
Separation must be provided by ATC between cleared aircraft and other arr/dep.
Limitations for non-precision
Limitations for Precision
NP - no lower than 1000ft
Precision - not past OM
Arrival Procedure Segments
Arrival
Initial (IAF)
Intermediate (IF)
Final (FAF)
Missed Approach (MAP/MAPt)
Arrival Segment
Permits transition from en-route phase to approach phase
Initial Segment
Aircraft has left en-route structure and entering the instrument procedure
Intermediate Segment
Speed and configuration is adjusted to prepare the aircraft for final approach.
MOC reduces from 300m to 150m.
Final Segment
Alignment and descent for landing are made.
Optimum 5nm, max 10nm