DQ48 Flashcards
Define the following and explain its relevance to you as an Army aviator:
A. Indicated altitude
B. Pressure altitude
C. Density altitude
Define the following and explain its relevance to you as an Army aviator:
A. Indicated altitude
The altitude indicated on the altimeter with current pressure setting in the kollsman window.
B. Pressure altitude
The altitude above the standard datum plane (29.92 in kollsman window)
C. Density altitude
The altitude for the air density in a standard atmosphere used for A/C performance
Define and explain application of the term
A. MIA
b. MEA.
c. MOCA
d. OROCA
Define and explain application of the term
A. MIA
MINIMUM IFR ALTITUDES/MIA - Minimum altitude for Instrument Flight Rules operations as prescribed in Code of Federal Regulations Part 91. These altitudes are published on aeronautical charts and prescribed in Code of Federal Regulations Part 95, for airways and routes, and in Code of Federal Regulations Part 97, for standard Instrument Approach Procedures
b. MEA.
MINIMUM ENROUTE IFR ALTITUDE/MEA - The lowest published altitude between radio fixes which assures acceptable navigational signal coverage and meets obstacle clearance requirements between those fixes.
c. MOCA
MINIMUM OBSTRUCTION CLEARANCE ALTITUDE/MOCA (P.CG, JCS) - The lowest published altitude in effect between radio fixes on VOR airways, off-airway routes, or route segments which meets obstacle clearance requirements for the entire route segment and which assures acceptable navigation signal coverage only within 25 statue miles (22 nautical miles) of a VOR.
d. OROCA
OFF-ROUTE OBSTRUCTION CLEARANCE ALTITUDE/OROCA - An off-route altitude which provides obstruction clearance within each bounded latitude/longitude quadrant as shown on FAA IFR charts. This altitude provides obstruction clearance of 1,000 feet in designated non-mountainous areas and a 2,000 foot vertical buffer in designated mountainous areas within the United States.
Define and explain application of the term
A. MRA
B. MCA
C. MVA
Define and explain application of the term
A. MRA
MINIMUM RECEPTION ALTITUDE/MRA (P/CG) - The lowest altitude at which an intersection can be determined.
B. MCA
MINIMUM CROSSING ALTITUDE/MCA - The lowest altitude at certain fixes at which an aircraft must cross when proceeding in the direction of a higher Minimum Enroute Instrument Flight Rules Altitude (MEA)
C. MVA
MINIMUM VECTORING ALTITUDE/MVA - The lowest mean sea level altitude at which an IFR aircraft will be vectored by a radar controller, except as otherwise authorized for radar approaches, departures and missed approaches. The altitude meets Instrument Flight Rules obstacle clearance criteria.
Is an aircraft navigating by IFR approved GPS considered to be a performance-based navigation PBN aircraft?
yes
What is a fly-by waypoint?
What is a fly-over waypoint?
Fly-by waypoints. Fly-by waypoints are used when an aircraft should begin a turn to the next course prior to reaching the waypoint separating the two route segments. This is known as turn anticipation.
Fly-over waypoints. Fly-over waypoints are used when the aircraft must fly over the point prior to starting a turn.
Are slight differences between GPS and the charted magneti course data considered acceptable? why?
Yes due to the RNAV algorytm
Explain the difference between homing and tracking inbound to a station. Which procedure should be used on IFR flights when cleared direct?
Homing: Not considering wind correction
Tracking: Considering wind direction. Should be used when cleared direct.
