Enroute Charts Flashcards
Instrument approaches - Type A
Above 250ft
2D non precision VOR/LOC/NDB/LNAV/LP
3D - APV/LPV
Instrument approaches Type B
Below 250ft
MLS/ILSGLS/LPV/PAR
Item 8 flight rules
I - If operating under IFR
V - If operating VFR
Y - flight starting IFR and then going VFR
Z - flight under VFR then IFR
En route obstacle clearance values (MOC)
- normal
- above 3000ft/5000ft
- greater than 5000ft
Normal MOC value = 1000ft (300m)
3000ft to 5000ft = 450m (1476ft)
5000ft = 600m (1969ft)
SID
Standard instrument departure
Runway to join airway
STAR
Standard terminal arrival
Airway to the initial approach fix
E>
Shows when semi circular rules does not apply along this route
DA
Published decision altitude for precision
Can go below height to spool up engine
MDA
Minimum descent altitude (Non precision)
Decision made above not to go below MDA
Conventional ATS routes
A B G R (GRAB)
H J V W (Hijack v wind)
RNP Route designator prefixes
L M N P - Regional
Q T Y Z - Non regional
Types of suffix’s on ATS route designator
D or F - ATC Advisory service
F or G - Flight info services only
R = RNAV route
X - Non BRNAV AC
Distances for MORA & MSA
Minimum sector altitude - 1000ft obstacle clearance/25nm radius
Minimum Off Route Altitude - 10nm radius along airway
What Is MOCA
Minimum obstacle clearance altitude - minimum altitude for a defined segment that provides the obstacle clearance (3500T for example)
Sum of maximum terrain +
Terrain up to 3000ft = MOCA + 1000ft
Terrain up to 5000ft = MOCA + 1500ft
Terrain over 5000ft = MOCA + 2000ft
Letters along airway =
More infomation is located around the chart