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Flashcards in Sy201 Flight Instruments Deck (40)
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1
Q

What is a VOR?

A

VHF omnidirectional range provides magnetic azimuth (radial) information for navigation purposes and are also capable of voice transmission

2
Q

What is an ILS?

A

Instrument landing system is s ground based transmitters for runway alignment and glide slope associated with the aircraft to allow landing and approach under poor weather conditions.

3
Q

What is the normal glide slope range?

A

2.5 to 3 degrees

4
Q

How do VOR stations work?

A

Line of sight, and their range varies with the altitude of the receiving aircraft

5
Q

What is frequency pairing?

A

Signals from the VOR and TACAN are identifies by three letter code transmissions and are interlocked so the pilots can be assured it’s coming from the same station.

6
Q

What is DME?

A

Distance measuring equipment is a dark ranging system, where distance is measured by the elapsed time between the transmission of the aircraft and the reception it gets back from the aircraft

7
Q

What are the VOR transmit beams called?

A

Radials

8
Q

Where is the radial displayed on the T-6A?

A

On the EHSI

9
Q

What is a TACAN?

A

Tactical air control and navigation or tactical air navigation system that is used with VORTAC systems.

10
Q

What is a azimuth?

A

Horizontal angle measured from a defined base reference line, typically magnetic north, occasionally true north expressed expressed as 000 degrees azimuth

11
Q

What is all associated with a VORTAC?

A

VOR and TACAN which provides VOR azimuth, TACAN azimuth, TACAN azimuth, and TACAN DME

12
Q

How many radials are on an VOR?

A

360

13
Q

Do the VORs use magnetic north or true north?

A

Magnetic

14
Q

What is the degrees of magnetic north?

A

000 degrees

15
Q

What components are part of an ILS

A

Localizer, glideslope, and marker beacons

16
Q

What is a localizer?

A

A signal that provides course guidance to the runway centerline

17
Q

What is a glideslope?

A

Provides vertical guidance to help maintain proper approach angle

18
Q

What are marker beacons?

A

Provide indications of progress along the approach path

19
Q

How does the DME calculate distance?

A

Measures the time required for the round trip and calculates a slant range distance in nautical miles from the aircraft to the ground station

20
Q

What are the basic navigation systems in the T-6A?

A

Electronic flight instrument system(EFIS), air data system(ADS), standby systems

21
Q

What are the electronic flight instrument systems?

A

Consists of a control panel and two 5 inch displays in each cockpit. The top display is the EADI, and the bottom display is the EHSI

22
Q

What is composite mode?

A

Both attitude and heading information can be displayed on the EADI or the EHSI

23
Q

Where do the EHSI and EADI receive their information from?

A

The attitude heading and reference system (AHRS)

24
Q

What does the Attitude heading and reference system do?

A

Is an attitude inertial sensor system which provides aircraft attitude, heading, and flight dynamics information to the aircraft systems and displays

25
Q

What does the meter line display for the AHRS?

A

If it’s horizontal then there is no slave error, but if it’s at an angle, then it shows it at an angle

26
Q

What’s happens if the AHRS is flipped to the DG mode?

A

Becomes a compass card with inaccurate heading information, only used in emergency information

27
Q

What is the slew control?

A

It’s a switch for correcting magnetic heading when a slaving error is indicated in DG mode

28
Q

Where is the primary air data information provided by?

A

Air data system

29
Q

What are the three Electronic instrument displays of the air data system?

A

Airspeed indicator(ASI), altimeter, and the vertical speed indicator

30
Q

How does the ADC send information the the EIDs?

A

Through multiple data buses using ADC channels A and B

31
Q

What are the backup indications if the main electronic flight systems fail?

A

Standby airspeed, attitude, altitude, bank indicators and a magnetic compass

32
Q

What does the ADC not provide information for?

A

Corrected information for temperatures, position or instrument error

33
Q

Where does the ADC get its source of information to calculate the airspeed, altitude, VSI?

A

The primary pitot tube and two primary static ports.

34
Q

How do the standby instruments get there information?

A

Directly from the secondary pitot and static system

35
Q

How are the standby instruments powered in the event of a battery bus failure?

A

AUX battery

36
Q

In EHSI, what are the five display formats available?

A

Directional gryo only, HSI compass rose, HSI map, ARC compass rose, and the expanded navigation map

37
Q

What is a marker beacon?

A

A specific type of vhf radio used for ILS, to give pilots a means to verify their position

38
Q

What are the three types of marker beacons?

A

Outer marker, middle marker, inner marker

39
Q

The ASI goes blank when?

A

When the speed drops below .4 Mach

40
Q

If an electrical failure occurs, how long will the standby attitude indicator provide pitch and roll indications? And within how many degrees?

A

9 minutes, 6 degrees