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SIGHTS > FCR > Flashcards

FCR Flashcards

1
Q

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

A

Time on Target

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2
Q

The AH-64E 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 the 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 three major components that make up the Longbow Fire Control Radar (FCR)?

A
  1. Mast Mounted Assembly (MMA)
  2. Radar Electronic Unit (REU)
  3. Radar Frequency Interferometer (RFI) 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 the other FCR components cooled?

A

The other two components that make up the FCR system are located in the IEFABs and therefore are cooled by the ECS air

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8
Q

Can the crew initiate another Power-on Built-In Test (PBIT) if the FCR has timed-out under extremely cold conditions?

A

YES. If 13 minutes have passed, the MP will report FCR as not operational. An additional FCR power-up may then be started

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9
Q

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

A
  1. MMA must be unpinned
  2. Verify the DMS-UTIL-BORESIGHT-BPS offset value is correct
  3. Heading Tape present (EGI Alignment)
  4. EFAB L/R ECS supply Temperature is ≤ 63 degrees F.
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10
Q

Should both crewmembers 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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11
Q

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

A

Four. Wide (W), Medium (M), Narrow (N), Zoom (Z).

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12
Q

There are three 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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13
Q

How can the PLT move the Fire Control Radar (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 sight is FCR
  4. Executing the CUED search option in response to an RFI detect.
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14
Q

Which crewmember can make FCR centerline adjustments?

A

The crewmember that has the FCR as the selected sight.

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15
Q

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

A

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

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16
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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17
Q

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

A

Sixteen (16) targets.

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18
Q

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

A

Two hundred fifty-six (256) targets can be viewed on the TSD page, PHASE ATK. The 16 highest priority targets will be displayed on the TSD page with a BOLD target symbol, making the target appear as a larger icon.

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19
Q

If a No Fire Zone (NF) and Priority Fire Zone (PF) overlap, which takes priority for FCR target prioritization?

A

The NF zone. When an FCR target is detected in both an active PF and an NF zone, the NF prioritization will prevail, meaning these targets will not get prioritized.

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20
Q

How many targets is the FCR capable of detecting?

A

One thousand, twenty-three (1023) targets.

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21
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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22
Q

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

A

Five (5) seconds.

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23
Q

When is the NTS established?

A

At the end of the first scan of a scanburst.

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24
Q

What four things will cause the NTS icon to change?

A
  1. Selection of 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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25
Q

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

A

The Radar Electronics Unit (REU) will establish a NTS based on the targets detected up to that point and will display a NTS icon around the target icon.

26
Q

What does a broken (dashed) NTS symbol indicate?

A

Any one of the following will cause the NTS symbol to be broken:
1. FCR is not the selected sight
2. A weapon system is not actioned
3. Aircraft is not armed.

27
Q

The Pilot’s selected sight is FCR and has a weapon system actioned. 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.

28
Q

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

A

RMAP Mode.

29
Q

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

A

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

30
Q

Can the pilot always link the M-TADS to the FCR NTS?

A

Not if the CPG is using M-TADS as a sensor. (IE: The NVS Mode switch is either NORM or FIXED).

30
Q

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

A

6KM.

31
Q

What are the two Single Target Track requirements?

A

Zoom Scan size and Continuous Scan.

32
Q

When is the LINK function ignored?

A

1) Crewmember’s selected sight is HMD.
2) No NTS target exists if linking TADS to the FCR.
3) When the TADS is being used as a sensor.
4) Proper equipment not installed/operational. (TADS/FCR)
5) FCR is the selected sight and TADS is the Acquisition Source or TADS is the selected sight and FCR is the Acquisition Source.

33
Q

What will cause the LINK to turn off / de-link?

A

1) LINK mode is toggled off 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.

34
Q

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

A

TADS

35
Q

Which crewmember has control of the FCR page Target (TGT) button?

A

Either crewmember can store FCR targets using the TGT button whether they have the FCR as the selected sight or not.

36
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.

37
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.

38
Q

What happens if a crewmember cursor selects a target icon when the TGT button is 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

39
Q

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

A

1) Crewmember 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.

40
Q

Who can send a RF Handover (RFHO)?

A

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

41
Q

Is there a “timeout” for sending an RFHO?

A

No. An RFHO can be sent anytime, no matter how old the scanned target data.

42
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.

43
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 a SAFETY INHIBIT.

44
Q

When the RFHO message is received, what must a crewmember do to transfer the information to the Mission Processor?

A

Crewmember must Sight select the FCR to transfer the RFHO data to the MP.

44
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.

45
Q

What classifications of FCR target icons display in the Air Targeting Mode (ATM)?

A

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

46
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.

47
Q

What does the lower number in the FCR page Elevation Altitude Status Window represent?

A

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

48
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 the RADAR?

A

The Blanking symbol.

49
Q

When the FCR ATM scan bar reaches the right perimeter 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 will reverse direction and continue the scan from right to left.

50
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.

51
Q

What does Terrain Profile Mode (TPM) provide?

A

An aid to navigation during terrain flight with reduced visibility.

52
Q

What controls the scan size when operating in TPM?

A

Automatically controlled based on aircraft ground speed.

53
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.

54
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.

55
Q

How many obstacle symbols can be displayed in the Terrain Profile Mode?

A

64 obstacles.

56
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

57
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 SHUTDOWN HOT”. On the HAD Sight Status Field: “FCR HOT”.

58
Q

What does the 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.

59
Q

What does the message FCR STI FAIL indicate?

A

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

60
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 the RFI.

SIGHTS (3 decks)

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