IFR Test
Distance of arc
# of degrees x DME arc/60
MAA
(Maximum authorized altitude) A published altitude representing the maximum usable altitude or flight level for an airspace structure or route segment.
MSA
(Minimum Sector Altitude) is the lowest altitude which may be used which will provide a minimum clearance of 1 000 ft above all objects located in the area contained within a sector of a circle of 25 NM radius centred on a radio aid to navigation.
MCA
(Minimum crossing altitude) is the lowest altitude at which a navigational fix can be crossed when entering or continuing along an airway that will allow an aircraft to clear all obstacles while carrying out a normal climb to the required MEA of the airway in question beyond the fix.
MEA
(Minimum enroute altitude) - the lowest published altitude between radio navigation fixes that assures acceptable navigational signal coverage & meets obstacle clearance requirements between those fixes.
MRA
(Minimum reception altitude) is the lowest altitude on an airway segment where an aircraft can be assured of receiving signals from navigation aids like VOR or NDB. Typically, the greater the distance between navigation aids, the higher the MRA.
PRM
(Precision Runway Monitoring) - Radar system for monitoring approaches to closely spaced parallel runways.
SID
(Standard instrument departure ) routes, also known as departure procedures (DP), are published flight procedures followed by aircraft on an IFR flight plan immediately after takeoff from an airport.
MOCA
(minimum obstruction clearance altitude) Meets obstacle clearance but only nav signal coverage within 22 nm of VOR
Dual VOR
(units independent of each other except for the antenna) check one system against the other. Both systems shall be tuned to the same VOR ground facility and note the indicated bearings to that station. The maximum permissible variation between the two indicated bearings is 4 degrees.
Aircraft approach cats
1.3 times stall speed in landing config, max gross landing weight A < 91 B > 91 leads then 121 C is 121 leads then 141 D is 141 less 166
FSS Frequencies
122.2 & 121.5 normally available
Standard temperature @ sea level
15 degrees C
Outer Marker
1st 2 letters of localizer identification group. Blue flasing light & audible series of dashes.
Average Lapse Rate Dry Adiabatic Rate
2 degrees C 3 degrees C
VOR Course Displacement
200' per nautical mile 30 nm x 200 = 6000 or 1 mile 3 dot defection = 3 mm displaced from center line
Maximum downdrafts in microburst
6000 feet per minute
VOR
A VOR ground checkpoint is a marked location at an airport where you will have an unobstructed read of a specific radial of a nearby VOR . Tune the VOR to the radial (Degrees-From) specified in the Airport Facility Directory. The CDI must be within ±4° of the specified radial.
Surface Analysis Chart
Actual frontal positions, pressure patterns, temp, dew pt, wind, weather and obstructions to vision at the valid time of the chart.
Equivalent airspeed (EAS)
Airspeed at sea level in the International Standard Atmosphere at which the dynamic pressure is the same as the dynamic pressure at the true airspeed (TAS) and altitude at which the aircraft is flying.
Indicated Altitude
Altitude shown on the altimeter.
Level Turn (Secondary)
Attitude indicator & Vertical Speed indicator
Descent Rate
Feet to be lost/time
Cloud Thickness
Field Elevation + OVC from Metar - Tops
Z lightning bolt on SIAP
Glide slope intercept altitude
Straight & Level (Primary)
Heading indicator, Altimeter, Airspeed
Absolute Altitude
Height above ground level (AGL).
True Altitude
Height above mean sea level (MSL).
HIRL
High intensity runway lights
RVR
Horizontal distance a pilot should see when looking down a runway from a moving aircraft.
Carbon monoxide poisoning
Hypemic hypoxia blood can not transport blood Symptoms intial feeling of euphoria but lead to more serious concerns such as headache, decreased reaction time, visual impairment and eventual unconsciousness.
Microwave Landing System
Identified by a 3 letter Morse code identifier proceed by the Morse code for "M".
VOR DME out of Service
Identifier will repeat @ intervals of 30 sec @ 1350 hz
WND
In a aviation area forecast means wind forecast over 20 mph
Calibrated airspeed (CAS)
Indicated airspeed corrected for instrument errors, position errors (due to incorrect pressure at the static port) and installation errors.
Pressure Altitude
Indicated altitude when an altimeter is set to 29.92 in Hg
Airmet
Issued every 6 hours
Middle Marker
Last 2 letters of localizer identification group. Amber flashing light and alternating dots and dashes
ILS MALSR
Lighting Systems - (Medium Approach Light System with Runway Alignment Indicator Lights) Published visibility for the ILS is no lower than 3/4 SM
Radar Summary Chart
Lines and cells of hazardous t-storms
Winds Aloft
Listed in true direction and knots
Inner Marker
No identifier unique to approach. Six dots per second & flashing white light
Hyperventilation
Paresthesias, Dizziness/Lightheadedness, Rapid Breathing, Headache, Decreased Visual Acuity, Weakness, Decreased Mentation, Drowsiness, Decreased Judgment, Loss of Consciousness
PAPI
Precision approach path indicator
Density Altitude
Pressure altitude corrected for nonstandard temperature variations
Straight & Level (Secondary)
Rate of Turn & Vertical Speed indicator
Level Turn (Primary)
Rate of turn, Altimeter, Airspeed
Level Turn (Control)
Roll, Pitch, Power
Straight & Level (Control)
Roll, Pitch, Power
TWEB
Route forecast 50 mile wide corridor
R31/2700FT
Runway 31's RVR is 2700
REIL
Runway end identifier lights (Rabbits)
Indicated airspeed (IAS or KIAS)
Speed of an aircraft as shown on its pitot static airspeed indicator, calibrated to reflect standard atmosphere adiabatic compressible flow at sea level, uncorrected for airspeed system errors.
True airspeed (TAS or KTAS)
Speed of the aircraft relative to the atmosphere. The true airspeed and heading of an aircraft constitute its velocity relative to the atmosphere
Hypoxia symptoms
Tunnel vision and cyanosis
NASD
Turn toward North accelerate on E/W heading Turn South deceleration on E/W heading
VOT
VOR test facility (VOT) transmits a test signal used on ground or air (use is strictly limited to those areas/altitudes specifically authorized in the A/FD). -Tune to VOT frequency -Course Deviation Indicator (CDI) centered -Omni-bearing selector should read 0 degrees with the to/from indication showing "from" or the omni-bearing selector should read 180 degrees with the to/from indication showing "to." - +/- 4 degrees ground or +/- 6 degrees airborne
V V
Vertical visibility
VASI
Visual approach slope indicator is a system of lights on the side of an airport runway threshold that provides visual descent guidance information during approach.
VRB
Wind entry in TAF for winds 3 knots or less
Constant pressure charts
Winds & temps aloft
900+00
Winds aloft Chart means light and variable
99 winds aloft
over 200 knots
Nimbus
rain cloud