Block 3/4 Glossary

Question 1

MOCA

Answer 1

The altitude above sea level between specified fixes on airways or air routes that meets the IFR obstacle clearance requirements for the route segment in question

Question 2

MEA

Answer 2

The altitude above sea level between specified fixes on airways or air routes that assures acceptable navigational signal coverage and that meets the IFR obstacle clearance requirements.

Question 3

MSA

Answer 3

The lowest altitude that will provide a minimum clearance of 1000ft under conditions of standard temperature and pressure above all objects located in an area contained within a sector of a circle with a 25NM radius centered on a radio aid to navigation or a specified point.

Question 4

MVA

Answer 4

The lowest altitude for vectoring aircraft by ATC that meets obstacle and radio coverage requirements in the airspace specified

Question 5

STAR

Answer 5

An IFR ATC arrival procedure published in the CAP for use by aircraft with the appropriate navigation capabilities and coded in many GNSS and FMS databases.

Question 6

Transition

Answer 6

A published procedure used to connect the basic standard SID to one or more enroute airways or te connect one or more enroute airways to the basic STAR. More than one transition may be published in the associated SID or STAR or RNAV approach.

Question 7

Fly-by Waypoint

Answer 7

A waypoint that requires the use of turn anticipation to avoid an overshoot of the next flight segment

Question 8

Fly-over Waypoint

Answer 8

A waypoint that precludes any turn until the waypoint is overflown and is followed by an intercept procedure of the next flight segment

Question 9

Wind Shear (WS)

Answer 9

A change in wind speed and/or direction in a short distance. It can exist in a horizontal or vertical direction and occasionally both

Question 10

Wake Turbulence

Answer 10

Turbulent air behind an aircraft caused by any of the following:
Wingtip vortdces
Rotor-tip vortices
Jet engine thrust stream or jet blast
Rotor downwash
Prop wash

Question 11

Controlled airport

Answer 11

An airport at which an airport control service is provided

Question 12

Control Zone

Answer 12

A controlled airspace of defined dimensions extending upwards from the surface of the earth up to and including 3000ft AAE unless otherwise specified

Question 13

SID

Answer 13

AN IFR ATC departure procedure published in the CAP for pilot and controller use in graphic and textual form. SIDs provide a transition from the terminal to the appropriate enroute structure.

Question 14

RSC report

Answer 14

Section of the AMSCR which provides runway surface information using a verbal description of the runway condition.

Question 15

AMSCR

Answer 15

Aircraft Movement Surface Condition Report
The report that details the surface conditions for all aircraft movement areas including runways, taxiway, and aprons

Question 16

CRFI

Answer 16

The average of the runway friction as measured by a mechanical or electronic decelerometer and reported through the AMSCR