Weapons ESWS Study Guide

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Questions and Answers

In which mode of operation does the Phalanx CIWS automatically fire when the hold fire is released?

  • Standby
  • Air Ready
  • AAW Auto (correct)
  • AAW Manual

What is the primary function of the Clearing Sector Holdback Tool?

  • To adjust the elevation of the gun barrel.
  • To increase the rate of fire of the CIWS.
  • To prevent rounds from entering the firing path. (correct)
  • To provide an alternative firing path for rounds.

Which control station is used by the CIWS technician for maintenance and local firing of the mount?

  • LCS (correct)
  • PTI
  • CIC
  • RCS

What is the maximum range of targets that the Phalanx CIWS can track?

<p>10 NM (B)</p> Signup and view all the answers

What is the maximum rate of fire for the Phalanx CIWS when engaging air targets?

<p>4500 rounds per minute (C)</p> Signup and view all the answers

Which safety mechanism prevents technicians from entering the upper gun area during potentially dangerous operations?

<p>Mount Intrusion Barrier (D)</p> Signup and view all the answers

What is the purpose of the Phalanx Thermal Imager (PTI)?

<p>To provide visual identification of targets. (B)</p> Signup and view all the answers

What is the primary purpose of the velocimeter on the MK 45 MOD 4?

<p>To calculate the muzzle velocity of the projectile (D)</p> Signup and view all the answers

Which of these is NOT a mode of operation for the Phalanx CIWS?

<p>Engagement (A)</p> Signup and view all the answers

Which of the following ammunition types is specifically designed for training against air targets?

<p>Variable Time-Non-Fragmentation (VT-NONFRAG) (D)</p> Signup and view all the answers

What is the capacity of the Phalanx CIWS ammunition drum in terms of rounds?

<p>1550 rounds (C)</p> Signup and view all the answers

What is the primary function of the SMX16 Upper Accumulator Motor Safety Switch?

<p>To enable the upper accumulator motor (A)</p> Signup and view all the answers

Which ammunition type is designed for use against both land and air targets?

<p>High Explosive-Controlled Variable Time (HE-CVT) (C)</p> Signup and view all the answers

What is the primary purpose of the Mount Safety Switch?

<p>To prevent the mount from moving during technical maintenance (D)</p> Signup and view all the answers

Which of the following ammunition types is suitable for target practice, ranging, and proving ground tests?

<p>Blind Loaded and Plugged (BL&amp;P) (C)</p> Signup and view all the answers

What is the function of the Fire Circuit Integrity Key?

<p>To initiate the firing sequence of the gun (C)</p> Signup and view all the answers

Which propelling charge delivers the highest energy to the projectile?

<p>Standard Charge (B)</p> Signup and view all the answers

What is the primary role of the Standby Maintenance Key?

<p>To activate the remote control function of the gun (B)</p> Signup and view all the answers

What is the primary function of the SMF1 Firing Control Switch?

<p>To enable the firing voltage (A)</p> Signup and view all the answers

Which of the following can be considered a crucial part of the pre-aim calibration (PAC) process?

<p>Ensuring all rounds hit the same target area (D)</p> Signup and view all the answers

What is the maximum effective engagement range of the Mk 38 Mod 3 25MM Machine Gun System?

<p>2,953 yards (B)</p> Signup and view all the answers

Which of the following is NOT a type of ammunition used in the Mk 38 Mod 3 gun system?

<p>SABOT-TP (B)</p> Signup and view all the answers

Which weapon has a maximum range of 6767 Meters?

<p>M2A1.50 Caliber Heavy Machine Gun (D)</p> Signup and view all the answers

Which weapon uses a Safety Button?

<p>M-14 Rifle (B), M-500 SHOTGUN (D)</p> Signup and view all the answers

What is the maximum rate of fire for the Mk 38 Mod 3 gun?

<p>180 rounds per minute (B)</p> Signup and view all the answers

What is the primary function of the Remote Operator Consoles (ROC)?

<p>To operate and control the gun system (D)</p> Signup and view all the answers

Which weapon has a cyclic rate of fire between 450-600 Rounds Per Minute?

<p>M2A1.50 Caliber Heavy Machine Gun (B)</p> Signup and view all the answers

What type of ammunition does the M-500 SHOTGUN utilize?

<p>12 Gauge 00 Buckshot 12 Gauge Slug (A)</p> Signup and view all the answers

Which weapon utilizes a Trigger Block as its safety mechanism?

<p>M2A1.50 Caliber Heavy Machine Gun (A)</p> Signup and view all the answers

What is the maximum effective range of the M240B Medium Machine Gun for an area target?

<p>1800 Meters (B)</p> Signup and view all the answers

Which weapon utilizes a Selector Lever as a safety mechanism?

<p>M4 Rifle (B)</p> Signup and view all the answers

What is the condition code for a weapon where the magazine is removed, the chamber is empty, the slide is forward, and the safety is on?

<p>4 (B)</p> Signup and view all the answers

What is the primary function of the MK 20 Mod 0 EOSS?

<p>To provide battle damage assessment (C)</p> Signup and view all the answers

What is the maximum effective range of the MK 45 Mod 4 gun with a standard powder charge?

<p>9 Nautical Miles (D)</p> Signup and view all the answers

Which panel is located in the magazine and provides information to the magazine crew about the type of ammunition to be loaded?

<p>EP3 (C)</p> Signup and view all the answers

What is the function of the MK 160 in the MK 34 Mod 8 weapon system?

<p>To interface with the ship's combat system and generate gun positioning orders (C)</p> Signup and view all the answers

Which of the following panels is located in the loader room and is used for local control/test/status display of the gun system?

<p>EP2 (C)</p> Signup and view all the answers

What is the purpose of the GFCS in the MK 34 Mod 8 weapon system?

<p>To act as the primary remote-control firing station for the 5&quot; weapon system (A)</p> Signup and view all the answers

In addition to the GFCS, from which other locations can the MK 45 Mod 4 gun be fired?

<p>GMCP and the EP2 Local control panel (B)</p> Signup and view all the answers

Which of the following components is NOT a part of the MK 34 Mod 8 Gun Weapon System?

<p>EP5 (B)</p> Signup and view all the answers

What is the purpose of 'Immediate Action' in relation to a weapon stoppage?

<p>To quickly return the weapon to a functional state without investigating the cause. (B)</p> Signup and view all the answers

Which of the following is NOT a variant of the MK 46 and MK 54 torpedoes?

<p>OTTO FUEL II (B)</p> Signup and view all the answers

What is the primary difference between a 'Malfunction' and a 'Stoppage' in a weapon?

<p>A malfunction is a failure of the weapon to operate as designed, while a stoppage is a failure of the weapon to fire properly. (A)</p> Signup and view all the answers

What is the purpose of the air flask located behind the torpedo in the MK 32 Mod 15 Surface Vessel Torpedo Tubes?

<p>To pressurize the torpedo launch system. (D)</p> Signup and view all the answers

What is a 'Cook Off' in the context of the provided information?

<p>When a round is accidentally discharged due to the extreme heat of the barrel. (C)</p> Signup and view all the answers

Which condition code describes a weapon that is ready to fire, with a round in the chamber?

<p>Condition Code 3 (D)</p> Signup and view all the answers

Which type of torpedo is specifically designed for training purposes?

<p>EXERCISE (B)</p> Signup and view all the answers

What is the maximum training angle for the MK 32 Mod 15 Surface Vessel Torpedo Tubes?

<p>45 degrees (A)</p> Signup and view all the answers

Flashcards

MK 45 Mod 4

A fully automated single-barrel 5" gun for surface vessels.

Semifixed Ammunition

A type of ammunition comprising a projectile and charge used in the MK 45.

EP1 Panel

Controls power distribution for the MK 45, located in the loader room.

EP2 Panel

Local control panel for the MK 45, with test and status displays.

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EP3 Panel

Status panel providing ammunition type info in the magazine.

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Hot Gun

Term for firing condition: 50 rounds in 4 hours.

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Maximum Range

The furthest distance the MK 45 can fire: 13 Nautical Miles.

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GFCS

Gun Fire Control System; main remote firing control for the weapon system.

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Velocimeter

Device that measures the muzzle initial velocity of a projectile.

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Safety Link

Holds recoiling parts in place for maintenance, must be removed before firing.

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SMX16 Upper Accumulator Motor Safety Switch

Removable switch that energizes the Upper Acc Motor when set to run.

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HE-PD

High Explosive-Point Detonating, used against surface and land targets.

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VT-NONFRAG

Variable Time-Non-Fragmentation, used for training against air targets.

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Standard Charge

Full charge delivering maximum energy to the projectile.

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Clearing Charge

Half size of standard charge, used to clear misfired ammunition.

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HE-ET

High Explosive-Electronically Timed, designed for small craft and anti-personnel use.

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Mount Safety Switch

Prevents mount movement to ensure techs can work safely.

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Fire Circuit Integrity Key

Completes electrical path for firing voltage to the gun.

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Hold Fire

Button to remove the final firing safety on the system.

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Pre-Arm/Arm/Safe

Button that arms the gun and transitions to firing mode.

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Ammunition Capacity

The Mk 38 Mod 3 holds 168 rounds of ammunition.

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Maximum Effective Range

Effective range of the Mk 38 Mod 3 is 2,953 yards.

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Remote Operator Consoles (ROC)

Main operating stations controlling the gun from the bridge.

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Fire Control Features

Advanced features for automated lead angle and elevation calculations.

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M4 Rifle Max Effective Range

The effective range for the M4 Rifle is 1,640 FT (500 Meters).

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M4 Rifle Condition Code 4

Magazine removed, chamber empty, slide forward, safety on.

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M500 Shotgun Max Effective Range

The effective range for the M500 Shotgun is 150 FT (46 Meters).

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M14 Rifle Max Range

The maximum range for the M14 Rifle is 12,221 FT (3,725 Meters).

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M2A1 .50 Caliber Condition Code 1

Ammunition on feed tray, bolt forward, round in chamber, cover assembly closed.

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M240B Machine Gun Max Effective Range

Max effective range for the M240B is 1,800 Meters for area targets.

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M500 Shotgun Ammunition Types

Uses 12 Gauge 00 Buckshot and 12 Gauge Slug.

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M2A1 .50 Caliber Cyclic Rate of Fire

Cyclic rate of fire ranges from 450 to 600 rounds per minute.

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Phalanx CIWS

A close-in weapon system designed to detect and destroy incoming anti-ship missiles and aircraft.

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M61A1 Gun

A six-barrel rotary cannon that provides a fire rate of 3000 rounds per minute for surface targets and 4500 for air targets.

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Ammunition Feed System

Mechanism that removes rounds from the drum and feeds them to the gun.

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Local Control Station (LCS)

Station used for maintenance and local firing of the CIWS.

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Remote Control Station (RCS)

Main tactical control for firing the CIWS from a remote location in the CIC.

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Operating Modes of CIWS

Different settings for the weapon, including Standby, Air Ready, Manual, Auto, and Surface modes.

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Radar Capabilities

Capabilities that include a search range of 40 NM, tracking at 10 NM, and engagement at 1 NM.

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Clearing Sector Holdback Tool

A safety tool that prevents rounds from entering the firing path by diverting them.

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Stoppage

An unintentional interruption of the weapon's firing.

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Malfunction

Failure of a weapon to operate as designed, yet it can still fire.

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Hang Fire

A delay in firing a round after the trigger is pulled.

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Misfire

The failure of a round to fire when the trigger is pulled.

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Cook Off

A round is discharged due to the barrel's high temperature.

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Squib Load

A fired projectile fails to exit the barrel, lacking force.

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Otto Fuel II

Non-explosive, shock-insensitive liquid monopropellant for torpedoes.

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Study Notes

Weapons ESWS Study Guide

  • The MK 45 Mod 4 is a fully automated, single-barrel weapon firing 5"/62 caliber ammunition.

  • It provides surface escort vessels with a weapon for firing semi-fixed ammunition.

  • The ammunition consists of a 70lb standard projectile and a 35lb standard charge.

  • The gun fires standard projectiles at a rate of 15-20 rounds per minute.

  • Gun mount operations are controlled via EP1, EP2, and EP3 panels.

  • EP1 is in the loader room, distributing 440V power and emergency power.

  • EP2 is a local control panel for the gun system.

  • EP3 is a status panel in the magazine, providing ammunition type information.

  • EP4 (Elevation) and EP5 (Train) panels display barrel alignment, in the weather shield(starboard and port sides), respectively.

  • The MK-45 can be fired from three locations: GFCS, GMCP, and the EP2 local control panel. The EP2 has three firing modes: local, remote, emergency.

  • Hot fire capability: 50 rounds in 4 hours.

  • Maximum effective ranges:

    • Air Contact: 4 Nautical Miles
    • General: 9 Nautical Miles
    • Maximum: 13 Nautical Miles
  • MK 34 MOD 8 is the overall Gun Weapon System. It is comprised of the GFCS, EOSS, GMCP, MK 160, Velocimeter, and the MK 45 MOD 4.

  • GFCS: primary remote-control firing station for the 5" weapon system in CIC.

  • MK 20 Mod 0 EOSS: electro-optical sensor system for battle damage assessment.

  • It has two cameras (DIS and TIS) and an ELRF (Eye-safe Laser Range Finder) located above the bridge for object distance and tracking data.

  • GMCP: compact redundancy panel to the GFCS used in casualties.

  • MK 160: functions as the fire control suite, processing target data and generating gun positioning orders.

5"/62 Caliber MK 45 Mod 4 Ammunition

  • Various projectile types are used:
    • High Explosive-Point Detonating (HE-PD)
    • Variable Time-Non-Fragmentation (VT-NONFRAG)
    • Blind Loaded and Plugged (BL&P)
    • White Phosphorus (WP)
    • High Explosive-Controlled Variable Time (HE-CVT)
    • High Explosive-Multi Function Fuse (HE-MFF)
    • High Explosive-Electronically Timed (HE-ET)
    • Kinetic Energy Electronically Timed (KE-ET)
    • Illumination (ILLUM)
  • Different types of charges (Standard, Reduced, Clearing) impact the energy delivered to the projectile.

Phalanx Close In Weapon System (CIWS)

  • CIWS is a fully automated system for firing on air targets.
  • It removes rounds from the drum, feeds them through a conveyor system, and loads the gun.
  • It supports a fire rate of 3000/4500 rounds per minute.
  • Capacity is 1550 20mm projectiles.

MK 38 Mod 3 25mm Machine Gun System

  • Provides a stabilized firing platform for the Bushmaster M242 25mm chain gun and MK 52 7.62 machine gun.
  • Available ammunition types: APDS-T, HEI-T, TP-T, SAPHEI-T.
  • Maximum effective range: 2,953 yards (2,700 meters).
  • Firing modes: Single-shot, low-burst, high-burst, low-continuous, and high continuous.
  • Rate of fire: Low: 100 rounds per minute, High: 180 rounds per minute.
  • Hot Gun: 100 rounds in 15 minutes.

MK 48 Mod 0 Electro-Optical Sight (EOS)

  • Surveillance Mode (SUR) is for surveillance and observation without continuous gun movement.
  • Engagement (ENG) is the primary battle mode.
  • Manual (MAN) is a backup mode.
  • Service (SRV): for maintenance.
  • Home Position (HOME) used for quick gun movement for loading/reloading.
  • Built-In Test: verifies proper system operation.

General Ammunition Color Coding

  • Various colors identify different explosive types to flag and distinguish them from each other.

Small Arms Weapons (Pistol, Rifle)

  • Specific models have max ranges, safeties, and ammunition types
  • Specific models have ammunition types
  • Specific models have condition codes

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