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Flashcards in Navigation Deck (50):
1

LWINS

Light Weight Inertial Navigation System - Total of 3 navigation sets with interface to the GPS to provide navigation data to MCs and attitude data to FCCs

2

MAGR

Miniature Airborne GPS Receiver - Uses satellite and internal computers to provide date, time, lat/long, altitude, velocity to INS and MCs

3

Kalman Filter

Mathematical program that blends GPS data with INS data to provide accurate position

4

TACAN Range

Up to 390 nm

5

PARTIAL NAV READY advisory

A single INS has completed full alignment

6

NAV READY advisory

All 3 INSs have completed alignment

7

Figure of Merit (FOM)

Displayed in the upper left corner of the PFD, VSD, and Hover Display. It represents the quality of the position data used for navigation. The Lower the number the more accurate the position.

8

FOM 1

Less than 26 meters position error

9

FOM 2

26-50 meter position error

10

FOM 3

51-75 meter position error

11

FOM 4

76-100 meter position error

12

FOM 5

101-200 meter position error

13

FOM 6

201-500 meter position error

14

FOM 7

501-1,000 meter position error

15

FOM 8

1,001-5,000 meter position error

16

FOM 9

Greater than 5,000 meter position error

17

DEGRADED NAV READY advisory

At least one LWINS is in degraded NAV mode meaning that less than full navigation mode but better than attitude mode.

18

POSITION DISAGREE Advisory

There is a difference in position of more than 250 meters between any of the LWINS

19

GPS MONITOR FAULT Advisory

GPS horizontal or vertical limit has been exceeded or it is unusable to detect and report an exceedence due to less than 5 satellite vehicles

20

GPS PERFORMANCE DEGR Advisory

GPS solution is degraded due to poor satellite signal quality or it is not in sync with LWINS

21

Range to Display a JOG in CHART mode of the NAV Layer

10nm (1:250,000 scale)

22

Range to Display a TPC in CHART mode of the NAV Layer

20nm (1:500,000 scale)

23

Range to Display a ONC in CHART mode of the NAV Layer

40nm (1:1,000,000 scale)

24

TRN Mode of the NAV Layer

Digital Terrain Elevation - Presents geo-referenced presentation of terrain features

25

IMAGE Mode of the NAV Layer

Black and White satellite image of the terrain

26

DATA FRAME Mode of the NAV Layer

Stores up to 100 scanned images that can be stored and displayed on the MFD. Includes: Photographs, Pages from NATOPS, Approach Plates etc.

27

Switch labeled FOV on the track handle, locate left of the hat switch

It is the Range Switch which allows the pilot to change the map range. Push forward to increase or aft to decrease the range

28

Button labeled POL on the track Handle , located below the Range switch on the left side of the track handle

Function Cancel Button, allows cancelling of the selected map function

29

Button labeled MAN on Track handle, located directly aft of the hat switch

Center Cursor button used to center the map display about the map cursor

30

Hat switch on the track handle (Labeled SLEW)

Slew/Designate switch, allows the pilot to control the movement of either the map cursor over the map or under the cursor. Pressing the switch captures whatever is under the cursor

31

ENHANCED FPLN Mode

Mission Computer calculates power and fuel data: 1) Future power, 2) power available, 3) power required. 4) Fuel calculation for both current and future legs

32

LEG END key of the Hover Performance Menu

The leg parameters "at the end" of the selected leg are used as inputs into the hover performance calculations.

33

CUR FPLN CONFLICT Caution

Active flight plan's Electronic Order of Battle (EOB) queue has at least one unacknowledged threat conflict. Meaning that the DDMS has determined that a threats detection ring plus a radius EOB buffer value intersects a leg of any flight plan.

34

RMU

Removable Memory Unit - Stores map representations and provides a storage location for all DDMS data and supplies digital data to the Display Electronics Unit (DEU).

35

Data stored on RMU

Aeronautical Charts (CHART), Digital Terrain (TRN) Elevation Data, Controlled Image (IMAGE) Base, and Data Frames (DATA FRAME).

36

UPD/STOR function of the Mission Management System

Allows pilots to create up to 45 waypoints by overflying a position or by using the FLIR

37

Range of numbers assigned to overfly waypoints

950 to 994

38

What is the total number of flight plans and legs available at any one time in the Mission Management System

5/100

39

Go Around Button

Pinky on TCL. Used to transition from hover or low speed flight to 100 kts. (If activated above 100 kts it will maintain airspeed at activation.

40

ALT REF Button

Pointer finger on TCL. Enables selection current altitude as reference altitude on FDP and engages altitude hold mode

41

Where are LWINS located

All 3 are in the left avionics closet

42

According to Assault Support Tactical Standard Operating Procedures Routes shall be named using ___

State names

43

Low altitude environment is defined as ___

500ft and below

44

Medium altitude environment is defined as ___

500ft to 13,000ft

45

High altitude environment is defined as ___

13,000ft and above

46

How are route checkpoints named

Named after cities within the state the route is named for

47

Planning Airspeeds

Max Range - 200 KCASCruise - 220 KCASTactical - 240 KCAS

48

Height Above Threshold on the MAP Layer

Used when terrain avoidance is required to accomplish a mission when flying low altitude tactics. A translucent yellow or red overlay is placed on terrain above the selected altitude.

49

GPS Almanac

Contains orbital data on all the GPS satellites which the GPS receiver uses to identify the location of a particular satellite

50

How long is GPS Almanac good for

30 days