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GoGuns > FCR > Flashcards

FCR Flashcards

1
Q

Which radar factor does the narrower radar beam width (scan width) improve?

A

Time on target

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2
Q

The AH64E uses what type of radar system?

A

Pulsed Wave Radar system

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3
Q

During the periods between transmissions of a pulsed radar system, what is the radar doing?

A

Listening for echo

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4
Q

What is the difference between a B-scope display and a C-scope display?

A

B-scope displays target information in Azimuth and Range

C-scope displays target information in Azimuth and Elevation

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5
Q

What are the 3 major components that make up the Longbow FCR?

A

(MMA) Mast mounted Assembly

(REU) Radar Electonic Unit

(RFI) Radar Frequency Interferometer Processor

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6
Q

How is the MMA cooled?

A

Filtered ambient air drawn in from the surrounding environment

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7
Q

How are other FCR components cooled?

A

ECS air

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8
Q

Which component is zeroized when the Master Zeroize switch is selected?

A

Non Volatile memory of the Servo Electonics LRM within the REU

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9
Q

Can the crew initiate another PBIT if the FCR has timed out under extremely cold conditions?

A

Yes. If 13 mins have passed, MP will report FCR as not operational. An additional FCR power up may then be started.

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10
Q

What 4 items should the crew ensure prior to initiating an FCR power up sequence?

A

MMA must be unpinned,

Verify the DMS-UTIL-BORESIGHT-BPS offset value is correct,

Heading tape is present (EGI alignment)

EFAB L/R ECS supply temp is < or = to 63 degrees F.

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11
Q

Should both crew members perform the FCR operational check?

A

If it is anticipated that both the pilot and CPG will operate the FCR during the mission, then this task should be completed in both crew stations.

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12
Q

How many scan sizes are available to the crew in any of the targeting modes?

A
  1. Wide
    Medium
    Narrow
    Zoom
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13
Q

There are 3 priority schemes resident within the REU? A, B, and C. If B is selected, which targets are being emphasized?

A

Stationary ground targets only

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14
Q

How can the PLT move the FCR centerline? The CPG?

A
  1. Acquisition source option (PLT- Automatic slave).
    (CPG- Must press Slave)
  2. Manually using the RHG Sight Manual Tracker (CPG Only)
  3. Left/Right button from the FCR page: Only available to the CM whose selected the sight is FCR
  4. Executing the CUED search option in response to an RFI detect.
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15
Q

Which crew member can make FCR centerline adjustments?

A

The crew member that has the FCR as the selected sight

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16
Q

What does it indicate if the FCR page L/R arrows are barrieres?

A

The CPG has the FCR as their selected sight, and slave button is active (slaved)

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17
Q

How far does the FCR centerline move when the FCR page L or R arrow is selected??

A

FCR centerline will move left or right the number of degrees based on, and equal to, the currently selected scan size.

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18
Q

what is the maximum number of detected targets that can be displayed on the TSD page?

A

256 targets

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19
Q

What is the maximum number of FCR detected targets that can be displayed on the FCR page?

A

16

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20
Q

If a no fire zone (NF) and priority fire zone (PF) overlap, which takes priority for FCR target prioritization?

A

The NF zone.

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21
Q

How many targets is the FCR capable of detecting?

A

1023

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22
Q

Upon completion of an FCR scan, the targets are displayed in “full intensity”. What does this mean to the crew?

A

The target information is new or updated

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23
Q

at the completion of an FCR scan, moving targets on the FCR page will go stale after how many seconds? 

A

5 seconds

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24
Q

When is the NTS established?

A

At the end of the first scan of a scan burst

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25
Q

What four things will cause the NTS icon to change?

A
  1. Selection of the NTS at L1
  2. Cursor selection of a different FCR icon.
  3. Sending a RFHO
  4. Firing at the target with an RF missile
    
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26
Q

What happens to the NTS if the crew actions a weapon system during a scan? 

A

The radar electronic unit (REU) will establish a NTS based on the target detected up to that point and will display a NTS icon around the target icon 

27
Q

What does a broken (dashed) NTS symbol indicate?

A

Anyone of the following will cause the NTS symbol to be broken:
-FCR is not the selected sight
-a weapon system is not actioned
-aircraft is not armed

28
Q

The pilot selected sight is FCR and has a weapon system action. The NTS icon is still dashed. Can the CPG make the NTS symbol solid by placing the aircraft arm/safe button to Arm? If so, why?

A

Yes. The ARM/SAFE button is common

29
Q

Which FCR mode is displayed in a B-scope/rectilinear format?

A

RMAP MODE

30
Q

What symbols will be available when changing between GTM & RMAP?

A

Target symbol data is maintained when operating between the two modes.

31
Q

What is the maximum detection range for the stationary ground targets displayed on the FCR page?

A

6KM

32
Q

Can the pilot always link the MTADs to the FCR NTS?

A

No. Not if the CPG is using M-TADS as a sensor

33
Q

What are the two single target track requirements?

A

Zoom scan size and continuous scan.

34
Q

When is the LINK function ignored?

A

1) The crewmember’s selected sight is HMD.
2) No NTS target exists if linking the TADS to the FCR.
3) Either crew station is currently using the M-TADS as a sensor (NVS MODE switch is either NORM or FXD with TADS as the selected sensor).
4) Proper equipment not installed/operational.
5) FCR is selected sight and TADS is the Acquisition Source.

35
Q

what will cause the LINK to turn off/De-link?

A
  1. link mode is toggled again via a reselection of the link.
  2. Change your selected sight.
  3. Change your acquisition source.
  4. NVS mode switch is placed into either Norm or fixed with TADS as the sensor.
36
Q

The CPG has the M-TADS linked to the FCR NTS. If the pilot sight selects the FCR, what sight will the MP assign to the CPG?

A

TADS

37
Q

which crew member has control of the FCR page target (TGT) button? 

A

either crew member can store FCR targets using the TGT button whether they have the FCR as the selected sight or not.

38
Q

What two ways can the crew store targets when the FCR page TGT option is selected?

A

Selecting the “ALL” button or individually selecting the target icons using the cursor

39
Q

What will happen if the “ALL” button is selected from the FCR TGT page?

A

All FCR targets displayed on the FCR page (up to 16) will be stored

40
Q

what happens if a crewmember cursor selects a Target icon when the TGT button selected from the FCR page?

A
  1. The target position is stored.
  2. The next available file status window is incremented to the next available file.
  3. The “ALL” button is removed.
41
Q

How can a crew member store the FCR target from the TSD page and where will the target get stored?

A
  1. Crewmembers selects CAQ from the TSD.
  2. Cursor select a FCR target icon on the TSD.
  3. FCR target location is stored in T50.
  4. T50 will become the ACQ source.
42
Q

Who can send a RF handover (RFHO)?

A

Only the crew member with the FCR as their selected sight, and their IDM selector set on a tuned longbow NET, and NTS present.

43
Q

Is there a “timeout” for sending an RFHO?

A

NO. An RFHO can be sent anytime.

44
Q

When an RFHO is received, which crewmember can receive the RFHO message?

A

Either crewmember in the receiving aircraft can accept (receive) the RFHO.

45
Q

what does a “NAV DATA INVALID”message in the sight status field of the crewmembers high action display (HAD) indicate?

A

The FCR has been selected as the active sight and the RF handover data recently received has been detected as outside the navigational performance parameters for weapons engagement. This is the safety inhibit.

46
Q

when the RFHO message is received, what must a crewmember do to transfer the information to the mission processor?

A

A crewmember must sight select the FCR to transfer the RFHO data to the MP.

47
Q

once a NTS target has been received and accepted, what is the time limit to conduct an engagement on that NTS target?

A

NONE

48
Q

what classification of FCR target icons display in the air targeting mode (ATM)?

A

helicopters, (both hovering and in-flight), fixed wing aircraft and unknown .

49
Q

What does the upper number in the FCR page elevation altitude status window represent?

A

The upper altitude of radar coverage at the maximum radar range.

50
Q

what does the lower number in the FCR page elevation altitude status window represent?

A

The lower altitude of the radar coverage at the maximum radar ranges

51
Q

what is the name of the FCR page “symbol” that displays when a RADAR scan is conducted over the tail or when the aircraft attitude causes the tail to interfere with RADAR?

A

The Blanking symbol.

52
Q

when the FCR ATM scan bar reaches the right parameter of the currently selected scan size (except wide scan), what happens with the scan bar if the crew is operating in the continuous scan mode?

A

The scan bar it will reverse direction and continue to scan from right to left.

53
Q

when operating the FCR in the air targeting mode (medium, narrow or zoom scan size), can the FCR centerline be repositioned to provide scanning to the rear of the aircraft?

A

Yes

54
Q

What does the terrain profile mode (TPM) provide?

A

An aid to navigation during terrain flight with reduced visibility

55
Q

What controls the scan size when operating in TPM?

A

Automatically controlled based on the aircraft ground speed.

56
Q

What ground speed will cause the TPM coverage to change from the Wide to narrow scan width?

A

increasing groundspeed to greater than 55 knots.

57
Q

what ground speed will cause the TPM coverage to change from Narrow to wide scan width?

A

decreasing groundspeed to less than 45 Knots.

58
Q

how many obstacle symbols can be displayed in the terrain profile mode?

A

64 obstacles

59
Q

Where can the crew access information as to the status of the sighting system?

A

their high action display (HAD) messages or on the DMS/DMS FAULT pages.

60
Q

if the fire control radar (FCR) is shut down automatically due to an overheat condition, where will the message for this condition display and what is the message?

A

on the DMS page. Message will be: “FCR SHUT DOWN HOT”. on the HAD sight status field: “FCR HOT”

61
Q

what does this message FCR MTI DEGR indicate?

A

this is a partial failure of the FCR, moving or airborne targets may not be processed. FCR operations in other modes is still possible.

62
Q

what does the message FCR STI FAIL indicate?

A

this is a partial failure of the FCR, stationary targets will not be processed of moving targets will.

63
Q

What must the crew do to use the Radar Frequency Interferometer (RFI) if the FCR fails or is not powered?

A

Ensure that the mast mounted assembly (MMA) is pinned forward, select MMA to PINNED, then power up the RFI.

GoGuns (28 decks)

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