Weapons Flashcards
CWIS is designed to transition to track mode at what distance?
5000 yards
CIWS fires what type of round?
20MM tungsten sub-caliber penetrator
With an aluminum pusher and discarding sabot
Maximum effective range of CIWS?
2000 yards in AAW mode
CIWS system parameters are measured by what?
Location control station in CIWS control room 1&2
Remote control station in CIC
What is the rate of fire for the MK15 CIWS in AAW?
4500 rounds per minute
What are the safeties for CIWS?
Clearing sector hold back tool
Fire integrity key switch
What does CIWS stand for?
Close-in weapons system
CIWS uses what to search for targets in surface mode?
Forward looking infrared (FLIR) camera aka Phalanx thermal imager
What is the minimum/maximum range for CIWS in surface mode?
Minimum for surface depends on firing cutouts
Surface maximum 4000 yards
What is the onboard/magazine capacity for CIWS?
Ammo capacity for CIWS is 1550 rounds
Tactical load is 1400 rounds
Rate of fire for CIWS in surface mode?
3000 rounds per minute
Where are both CIWS mounts located?
Forward mount along the centerline at frame 112, and is overlooked by the pilot house
Aft mount is located along the center line at frame 300
What are CIWS three modes of fire?
AAW manual
AAW auto
Surface mode
CIWS only requires three supporting inputs from the ship what are they?
450v 3-phase 60hz power, 150psi firemain, and ships heading input
What must be set before moving CIWS ammunition?
Hero
What is the function of the MK 45 5” 54 caliber light weight gun?
Designed to combat surface targets, low-slow fliers, and shore targets
Ammo for 5in is loaded by what?
Lower hoist
Located in deep magazine
What is the maximum capacity of the loader drum?
20 rounds
What is the function of the cradle for 5inch?
Aligns the ammunition with barrel, where it is rammed into breech and this ready to fire
What are the 5 types of rounds for 5inch?
HE-high explosive (green with yellow band)
KE-kinetic energy (green with brown band)
BL&P-blind, loaded and plugged(blue)
Illumination (green with white band)
VT non-frag- variable time, non fragmenting (green with with band)
What the different types of fuses for 5 inch?
PD-point detonation PDD-point detonation delayed VT-variable time CVT-controlled variable time ET- electrically timed MFF- multi-function fuze
What is the maximum range for 5”?
13 nautical miles
What is the maximum effective range for 5”?
4-7 nautical miles
Where are the parameters monitored for 5”?
EP2 local control panel in the loader drum room
MK160 gun fire control supervisor in CIC
What is the rate of fire for 5”?
16-20 rounds per minute
What are the firing modes for 5”?
Remote,local, and casualty
What is the function of the MK 38 mod 2 25MM machine gun ?
Lightweight stabilized naval machine gun system for day and night operations
Used for anti-small craft weapons system
Max effective range of 25MM?
2,953 yards (2700 meters)
What are the firing modes of the 25MM?
Single shot- 1 round Low burst- 3 round burst High burst-5 round burst Low continuous- 100 rounds per minute High continuous- 180 per minute
What are the types of ammunition used by the 25mm?
APDS-T
HEI-T
TP-T
SAPHEI-T
Where is the 25mm located?
MT 2501(STBD) MT 2502 (PORT)
What are the modes of operation or control for the 25mm?
Surveillance Engagement Manual Service Home position Built-in test
What is hot-gun?
When a delivery system has reached high enough ambient temperature for potential cook-off
What is a hang-fire?
Delay in firing Of a projectile
What is a misfire?
Failure of a round to fire when trigger is pulled
What is a cook-off?
Inadvertent firing of a weapon
What is the hot gun for CIWS ?
300 rounds in 5 minutes
What is the hot-gun for 5”?
50 rounds in 4 hours
What is the hot -gun for the .50 cal?
200 rounds in 2 minutes
What is the hot gun for the 25mm?
100 rounds in 15 minutes
Rate of fire for CIWS
4500 rpm in aaw
3000 in surface
Rate of fire for the .50 cal?
450 rounds per minute
Rate of fire for the 25mm?
180rpm high rate, low rate 100 rpm
Max effective range for CIWS
2000 yards in AAW
4000 yards in surface
Max effective range for 5 inch
4-7 nautical miles in AAW 9 nautical miles in surface
Max effective range for the .50 cal
2000 yards
Max effective range for the 25mm
3000 yards
Location of magazines
Deep mag: access trunk in sonar p-way
21 mag: port side forecastale, O-2 level
22 mag: port side , aft missile deck, O-1 level
What is the clearing sector hold back tool
Is a mechanical safety against inadvertent firing of the gun
What is the fire integrity switch
Is an electrical safety against inadvertent firing of the gun
What’s the difference between AAW AUTO/AAW manual
Only difference being after a recommend fire condition is received , the operator must depress the fire switch in aaw manual
Where does CIWS upload ammunition
The loader assembly
Does a 1-1 transfer it will pull one round out of the exit unit and insert one round in its place
Where can 5 in be controlled from
Locally in the loader drum room
Remotely from the GFCS console in CIC
What does the upper loading station do
Route the ammunition into the loader drum
What does the transfer station do
Is where the fuze is set and the ammunition is transferred to the upper hoist
What is the intrusion barrier
Prevents personnel from entering the upper hoist while fun is in operation
What is the safety link
Keeps the gun in battery in case of loss of nitrogen pressure to counter-recoil cylinder
What is the function of the MK 34 weapon system
Control and fire of the MK 45 5in cal gun mount via MK 160 gun computer system and MK 46 optical sight
What are the warfare areas of the MK 34 weapon system
AAW
ASW
NSFS
HSMST
What does NSFS stand for
Naval surface fire support
What does HSMST stand for
High speed maneuvering targets
Where is the optical sight system located (OSS)
O-6 level above the pilot house
Console CDC located in CIC
Where is the GFCS console located
CIC
Explain detection for the MK34 weapon system
Receives target data through SPY-1D as primary and SPS-67 secondary
Also in casualty mode targets may be manually entered based on range/bearing inputs from OSS
What is the function of the MK 46 optical sight system (OSS)
Controls optical sight director and the TIS and DIS cameras
What are the modes of operation or control for the MK46 OSS
Manual mode-director is controlled by oss console
Slave mode-director is controlled by the GFCS console
What is the effect on the system of components fail on the MK46 OSS
Unable to visually confirm battle damage assessment
What are the supporting inputs for the MK 46 OSS
Does not receive or send inputs to/from any radars
What does TIS stand for
Thermal imaging system
What does DIS stand for
Daylight imaging system
What are the firing modes of the MK 46 OSS
TIS and DIS
What is the function of the MK160 gun computer system
Interfaces with 5” gun mount,MK 46 and Aegis
Where is the MK160 gun computer system located
In CIC next to surface watch console and casualty console on the bridge
EP2 console on 5” loader drum room
What are the modes of operation for the MK160 gun computer system
Remote(GCS)
Local (EP2)
What is the effect on the MK 160 gun computer system if consoles in CIC failed
Would result in either using console on bridge or GMCP console. If using GMCP console operator loses aegis inputs
What supporting inputs are required for the MK160
Receives engagements from SPY-1D primary and SPS-67 secondary
What are the operating modes of the MK160
Test
Training
Tactical
What is the gun type of the MK38 mod2 25mm machine gun
Bushmaster chain gun M242 25mm
What does APDS-T stand for
Armor piercing discarding sabot tracer
What does HEI-T stand for
High explosive incendiary tracer
What does the TP-T stand for
Target practice Tracer
What does SAPHEI-T stand for
Semi armor piercing high explosive incendiary Tracer
What is the primary battle mode for the MK38 mod 2 25 mm
ENGAGEMENT
Where can the MK38 mod 2 25mm be operated from
Manually on station
Remotely from the ROC in the pilot house
What is CWIS primary mission?
Anti-air warfare and defense against ASM
