Sonar Walk Through

Question 0

WQC-6

Answer 0

-1 way encrypted communication from ship to sub

Question 1

SQQ-89 A(V) suit

Answer 1

• 6 counsels
• 1 in CIC
• All interchangeable
• 2 modes of sonar

Question 2

WQC-2 (Gertrude)

Answer 2

• underwater coms

- 2 way unsecured coms: ship to ship/ ship to sub/ sub to sub

Question 3

UQN-4A

Answer 3

• Fathometer

- how deep the water is from the kheel (sonar dome is the bottom of the ship)

Question 4

Where are the 3 repeaters for the Fathometer?

Answer 4

• bridge above the chart table
• chart table above the chart table
• combat above the “os” chart table

Question 5

MMFTA

Answer 5

Multifunction Towed Array

• long range passive
• 660ft long
• 5600ft tow cable (5200ft deplorable)

Question 6

How many fish does NIXIE have?

Answer 6

2

Question 7

How many modes does NIXIE have?

Answer 7

6- swept, noise, alternating, pulse, random (acoustic)

1- non acoustic (magnetic influence countermeasure)

Question 8

How long are each drogue and how many are there?

Answer 8

• 2

- 60ft for each

Question 9

How long is the array?

Answer 9

37 inch

Question 10

Where is the sonar dome located?

Answer 10

Fwd

Question 11

What is the sonar dome pressurized to?

Answer 11

39.5 psig +2/ -0

Question 12

What is the sonar do e filled with?

Answer 12

Fresh water

Question 13

What is the sonar dome pressurized with?

Answer 13

Firemain

Question 14

The MK 46 torpedo uses what as a propellant?

Answer 14

OTTO II fuel

Question 15

What does SIMAS stand for?

Answer 15

Sonar In-situ Mode Assessment Systm

Question 16

What is SIMAS used for?

Answer 16

Generate ranger predictions

Question 17

What are the sub systems that make up the sonar suite?

Answer 17

AN/SQS-53C
AN/SQR-19B
AN/SQQ-28
MK-117 MOD 7

Question 18

What’s the difference between active and passive sonar?

Answer 18

Passive we listen only and bearing is the only info that can be collected, active alerts others to our position and we can get relatively accurate range and bearing info

Question 19

AN/SLQ-25 is what?

Answer 19

NIXXIE

Question 20

What are the types of sonobuoys

Answer 20

53-F-DIFAR (pointer)
62D/E-DICASS (Cadillac)
77-VLAD (totempole)

Question 21

What does the sonar dome house?

Answer 21

AN/SQS-53 transducer (576)

WQC-2A transducers (2)

Question 22

What does XBT stand for?

Answer 22

ExpendablenBathythermograph

Question 23

What is the range of the MK 46

Answer 23

Over 3,200 yards

Question 24

What is the firing pressure for MK 32

Answer 24

1600 psi

Question 25

How many torpedoes can a helo hold

Answer 25

2