# IFR Instruments Flashcards

1
Q

ARSR

A

2
Q

ASR

A

3
Q

PAR

A

4
Q

ASDE

A

Airport Surface Detection Equipment

5
Q

What are the three types of VORs?

A
1. VOR (just the VOR)
2. VOR-DME (VOR plus distance measuring equipment)
3. VORTAC (VOR plus the military’s tactical air navigation system)

Each VOR station can further be classified according to its range - terminal, low altitude, or high altitude. Terminal VORs are designed to be clearly received up to 25 nautical miles from the station at altitudes of 1,000 feet agl through 12,000 feet agl. Low-altitude VORs are meant to be used from 1,000 feet agl through 18,000 feet agl at distances of up to 40 nm from the station. Finally, high altitude VORs have the greatest range - 130 nm - between 18,000 feet agl and 45,000 feet agl, although they can also be effective at shorter ranges of 40 nm or more from 1,000 feet agl all the way through 60,000 feet agl. Remember that all VORs can only be received line-of-sight. So, if there’s a mountain between you and the VOR, you will not receive a reliable signal even though you are within the station’s range.

6
Q

What is the reception range for a terminal VOR?

A

Terminal VORs are designed to be clearly received up to 25 nautical miles from the station at altitudes of 1,000 feet AGL through 12,000 feet AGL.

7
Q

What is the reception range for a low-altitude VOR?

A

Low-altitude VORs are meant to be used from 1,000 feet agl through 18,000 feet agl at distances of up to 40 nm from the station.

8
Q

What is the reception range for a high-altitude VOR?

A

High altitude VORs have the greatest range - 130 nm - between 18,000 feet agl and 45,000 feet agl, although they can also be effective at shorter ranges of 40 nm or more from 1,000 feet agl all the way through 60,000 feet agl.

9
Q

How many degrees does each dot represent on a VOR CDI?

A

2 degrees per dot

10
Q

How many dots are on a VOR CDI?

A

5 on each side of center for a coverage of 10 degrees on each side of center.

11
Q

What is the distance represented by each dot on the VOR CDI?

A

At 30 miles from the VOR, each dot represents 1 mile.

12
Q

Static Pressure Instruments

A

ASI - Airspeed indicator
VSI - Vertical Speed Indicator
ALT - Altimeter

13
Q

Gyroscopic Instruments

A
2. Attitude Indicator (artificial horizon)
3. Turn and Slip Indicator
13
Q

What is the range of a localizer signal?

A

Usable range:
25 nm within 10 degrees of centerline.
17 nm within 35 degrees of centerline.

Reduced range:
18 nm within 10 degrees of centerline.
10 nm within 35 degrees of centerline.

14
Q

PFD

A

Primary Flight Display

Replaces the six traditional instruments with a single easy to scan display.

15
Q

MFD

A

Multi-function Display

Displays moving maps, navigation information, aircraft systems information, etc.. Can also become the PFD.

16
Q

A

Air Data Computer

Receives data from sensors (ram, static, temp, magnetic) and computes course and altitude data for the AHRS.

17
Q

TAWS

A

Terrain Awareness System

Provides terrain graphics and warnings.

18
Q

TIS

A

Traffic Information System

19
Q

AHRS

A

20
Q

FMS

A

Flight Management System

Computer database that allows for the programming of routes, approaches, and departures. It can supply navigation data to FMS or autopilot, and calculate flight parameters such as time remaining, range, fuel consumption, and more.

21
Q

FD

A

Flight Director

Provides directional guidance to the pilot

22
Q

TACAN

A

Military VOR equivalent

23
Q

LORAN

A

24
Q

MLS

A

Microwave Landing System

25
Q

INS

A

26
Q

TSO-C129a

A

GPS (non-WAAS)

LNAV approaches only
Not authorized for alternate planning (unless you have other approach navigation equipment onboard.)

27
Q

TSO-C196

A

Non-WAAS GPS

a. “Selective Availability Aware”
b. RF noise tolerant

Operationally identical to TSO-C129a

29
Q

TSO-C146c

A

WAAS GPS

No RAIM predictions required prior to use for approaches.
Only limitation is plan alternates to LNAV or circling minimums.

31
Q

TSO-C145c

A

WAAS GPS

No RAIM predictions required prior to use for approaches.
Only limitation is plan alternates to LNAV or circling minimums.

32
Q

High Altitude VOR Service volumes

A

1000’ - 14500’ 40 Nm
14500’ - 18000 100 Nm
18000 - FL450 130 Nm
FL450 - FL600 100 Nm