MK 45 5" Light Weight Gun Mount

Question 1

What is the MK 45 5” LWGM designed to combat?

Answer 1

Surface targets
Low-slow fliers
Shore targets

Question 2

Where can the 5” be controlled?

Answer 2

Locally on the EP2 Local Control Panel in Loader drum room

Remotely on Gun Fire Control Supervisor (GFCS) in CIC

Question 3

Describe the steps for delivery of the 5”.

Answer 3

Ammo loaded on lower hoist (Deep Mag)
then brought to upper loading station to the loader drum (20 rounnds)
Sent to transfer station where fuse is set and transitioned to upper hoist
Transfer a round to cradle (align ammo with barrel)
Ammo Rammed into breech w 24 VDC

Question 4

What are the two categories that a 5” ammo is broken down to?

Answer 4

Fuse type

Round type

Question 5

How many round types are there and what are they?

Answer 5

SIX
HE     High Explosive 
KE     Kinetic Energy 
Illuminator 
White Phosphorous 
BL&P     Blind, Loaded, and Plugged 
VT/Non-frag     Variable Time / Non-fragmenting

Question 6

How many fuse types are there and what are they?

Answer 6

SEVEN 
PD     Point Detonation
PDD  Point Detonation Delayed 
VT     Variable Time 
CVT   Controlled Variable Time  
ET      Electrically Timed 
MFF   Multi-function Fuse
MT     Mechanically Timed

Question 7

What does LGWM stand for?

Answer 7

Light Weight Gun Mount

Question 8

What are the effective ranges for the 5”?

Answer 8

Anti-Air 4-7 NM

Surface 9 NM

Question 9

What are some of the parameters for the MK45 5” LWGM?

Answer 9

Hot Gun Condition: 50 rounds in 4 hours

Rate of fire: 16-20 RPM

Question 10

What are the two safety precautions to consider with the MK45 5” LWGM?

Answer 10

Intrusion Barrier

Safety Link

Question 11

What is the Intrusion Barrier?

Answer 11

Prevents from personnel from entering the upper gun pocket

Question 12

What is the Safety Link?

Answer 12

Keeps gun in battery in case of loss of nitrogen pressure to counter-recoil cylinders