.52 Flashcards
VOR TACAN: Polarization tolerance
<= 2.0 degrees
VOR: Receiver Checkpoint tolerance 1 Ground 2 Airborne
Ground 15 microvolts, +- 2.0 degrees
Airborne +- 1.5 degrees
VOR TACAN: Roughness tolerance
3.0 degrees
VOR TACAN: Scalloping tolerance
3.5 degrees
VORTAC: service volume Hi
1000 to14499: 40nm
14500 to 17999: 100nm
18000 to 45000: 130nm
45001 to 60000: 100nm
Rho Theta Coverage Orbit
- terminal
- low
- hi
terminal-25 nm
low -40 nm
hi-40nm
1000’(2000’ mountainous) over antennae, terrain, and obstructions
VOR Modulation Tolerance
- AM
- FM
- 9600
AM: 25-35%
FM: 14.8-17.2 deviation ratio
9600: 20-35% w/voice, 20-55% without voice
TACAN Modulation Tolerance
10-30%
VORTAC Service Volume
- Low
- Terminal
Terminal: 1000’-12,000’ @ 25 nm
Low: 1000’-18000’ @ 40 nm
Signal Strength Tolerance
- VOR
- TACAN
VOR: >=5 microvolts or -93dbm
TACAN: 80 dbm (whatever the fuck that is)
DME tolerance
+- .2 nm, no unlock
Rho Theta ARR
-Periodic Alignment tolerance
> 1 degree from previously established, perform alignment orbit.
If alignment orbit >1 degree, contact mx
VOR offsets are checked by flying…
5 degrees both sides
FAF altitude to 100 below mins
Rho Theta
- ARR establishment
- Alignment Orbit establishment
ARR: 5-10 nm segment, 5-25 DME hybrid mode (10-25 DME mode)
Alignment Orbit: 5 nm minimum hybrid (10 nm DME)
How do you fly a TACAN Null check?
3 miles before and after FAF at FAF altitude,
plus offset 5 degrees both sides
RNAV
Ensure full fly up indication on _____ approaches.
WAAS
RNAV
What’s the minimum segment to be flown on RNAV approaches?
2 miles prior to FAF to MAP
RNAV
-CRC remainder
Perfect match, No CRC remainder
RNAV
-Glide path alignment tolerance
+-.1 degrees
RNAV
-Course Alignment tolerance
+-.1 degrees of true course
RNAV
-Threshold Crossing Height tolerance
+12’
-10’
Don’t forget to check for pending data and VGSI coincidence!
RNAV
When checking ODP/SID:
If low close end obstacles, cross departure end of runway at…
200’
RNAV
HPL tolerances
-LP/LPV
-WAAS
<=40 m LP/LPV
<=556 m WAAS
RNAV
VPL tolerances
-LPV
-WAAS
<=35m, <=50 for approach mins 250’ or greater (LPV)
<=50, (WAAS)