FCR Questions with Correct Solutions
Question:
1. Which radar factor does a narrower radar beam width (scan width) improve?
Answer:
Time on Target.
Question:
2. Pulsed Wave Radar system.
Answer:
The AH-64E uses what type of radar system?
Question:
3. Listening for the echo.
Answer:
During the periods between transmissions of a pulsed radar system, what is the radar doing?
Question:
4. What is the difference between a B-scope display and a C-scope display?
Answer:
B-scope displays target information in Azimuth and Range. C-scope displays target
information in Azimuth and Elevation
Question:
5. What are the three major components that make up the Longbow Fire Control Radar
(FCR)?
Answer:
Mast Mounted Assembly (MMA), Radar Electronic Unit (REU) Radar Frequency
Interferometer (RFI) Processor
Question:
6. How is the MMA cooled?
Answer:
Filtered ambient air drawn in from the surrounding environment.
Question:
7. How are the other FCR components cooled?
, Answer:
The other two components that make up the FCR system are located in the IEFABs and
therefore are cooled by the ECS air.
Question:
8. Which component is zeroized when the Master Zeroize switch is selected?
Answer:
The Non-Volatile memory of the Servo Electronics LRM within the REU.
Question:
9. Can the crew initiate another Power-on Built-In Test (PBIT) if the FCR has timed-out under
extremely cold conditions?
Answer:
YES. If 13 minutes have passed, the MP will report FCR as not operational. An additional FCR
power-up may then be started.
Question:
10. MMA must be unpinned, Verify the DMS-UTIL-BORESIGHT-BPS, offset value is correct,
Heading Tape present (EGI Alignment), and EFAB L/R ECS supply Temperature is 63 degrees
F.
Answer:
What four items should the crew ensure prior to initiating an FCR power-up sequence? d
Question:
11. 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.
Answer:
Should both crewmembers perform the FCR Operational Check?
Question:
12. How many scan sizes are available to the crew in any of the targeting modes?
Answer:
Four. Wide (W), Medium (M), Narrow (N), Zoom (Z).
Question:
13. Stationary ground targets only.
Answer:
There are three Priority Schemes resident within the REU: A, B, and C. If B is selected, which
targets are being emphasized?
Question:
1. Which radar factor does a narrower radar beam width (scan width) improve?
Answer:
Time on Target.
Question:
2. Pulsed Wave Radar system.
Answer:
The AH-64E uses what type of radar system?
Question:
3. Listening for the echo.
Answer:
During the periods between transmissions of a pulsed radar system, what is the radar doing?
Question:
4. What is the difference between a B-scope display and a C-scope display?
Answer:
B-scope displays target information in Azimuth and Range. C-scope displays target
information in Azimuth and Elevation
Question:
5. What are the three major components that make up the Longbow Fire Control Radar
(FCR)?
Answer:
Mast Mounted Assembly (MMA), Radar Electronic Unit (REU) Radar Frequency
Interferometer (RFI) Processor
Question:
6. How is the MMA cooled?
Answer:
Filtered ambient air drawn in from the surrounding environment.
Question:
7. How are the other FCR components cooled?
, Answer:
The other two components that make up the FCR system are located in the IEFABs and
therefore are cooled by the ECS air.
Question:
8. Which component is zeroized when the Master Zeroize switch is selected?
Answer:
The Non-Volatile memory of the Servo Electronics LRM within the REU.
Question:
9. Can the crew initiate another Power-on Built-In Test (PBIT) if the FCR has timed-out under
extremely cold conditions?
Answer:
YES. If 13 minutes have passed, the MP will report FCR as not operational. An additional FCR
power-up may then be started.
Question:
10. MMA must be unpinned, Verify the DMS-UTIL-BORESIGHT-BPS, offset value is correct,
Heading Tape present (EGI Alignment), and EFAB L/R ECS supply Temperature is 63 degrees
F.
Answer:
What four items should the crew ensure prior to initiating an FCR power-up sequence? d
Question:
11. 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.
Answer:
Should both crewmembers perform the FCR Operational Check?
Question:
12. How many scan sizes are available to the crew in any of the targeting modes?
Answer:
Four. Wide (W), Medium (M), Narrow (N), Zoom (Z).
Question:
13. Stationary ground targets only.
Answer:
There are three Priority Schemes resident within the REU: A, B, and C. If B is selected, which
targets are being emphasized?
