Unit 3 DCASE

• 1. Self-Sufficiency
• 2. Centralized Control
• 3. Specialization
• 4. Endurance
• 5. Continuity of Command

Damage Control central serves as the focal point for casualty control decision making

• Main Deck (CVN/Amphib)
• May be divided into 1A/1B/1F

Forward

Aft

Amidships, Non-Engineering

Propulsion Repair

Ordnance

Gallery Deck/Island

Electronics Repair

• Senior person present
• Enough personnel to combat casualty
• Equipped with correct tools to engage casualty

It is designed for major emergencies and is generic in response. The CHENG is responsible for ensuring the bill is current and ready for execution.

• A major conflagration is damage of a magnitude that cannot be readily handled by the conventional DC organization;
• therefore, all-hands participation is required to save the ship.
• Should by covered by General Emergency Bill

• Emergencies may arise on other ships or shore stations that require actions to be taken by personnel from your ship
• Safety of ownship is paramount

Bullseye’s 1st line is the numeric name of the space, the 2nd line is the space length starting with the fwd most BHD, and the 3rd line represents the division responsible for that space.

• Comp’t designation placard: 1st line is the fitting number
• the 2nd is the noun name of the space you are about to enter
• 3rd is the compartment number of the space the fitting accesses.

DCA

• The 3 types are Master, Duplicate, and Partial. The DCA keeps both a hard copy and a back up electronic copy of the Master. A space with 1 access will post a copy of the Master.
• A space with more than 1 access will have a complete set of CCOL’s marked DUPLICATE within sight of every access.
• A Partial is posted on a space within a space

• The 4 Chapters in a DC Book include: information on DC Plates,
• Ship’s characteristics,
• Steering Gear,
• stability,
• Transverse BHD’s,
• Drainage,
• Firemain’,
• Lube Oil,
• Electrical System,
• and IC Circuits

The Subdivision Plates are used for the primary plot because they have all of the accesses on them whereas system drawings may not.

• DC Plates provide a 3 dimensional view of: Liquid Loading,
• Subdivisions,
• Drainage,
• Firemain,
• Fuel-filling,
• transfer, and overflow,
• Ventilation-Supply and Recirc,
• Ventilation–Exhaust,
• Chill Water systems,
• Casualty Power and Casualty Comms,
• The Vital Load Chart,
• and Communication Directory.

• ONLY 3! Starting from the lowest level of protection/compartmentation and going to the highest:
• X RAY,
• YOKE AND
• ZEBRA.
• William and Circle William are NOT material conditions of Readiness!

• The purpose is to list all violations of set Material Conditions of Readiness.
• 1 fitting logged appropriately open violates/reduces compartmentation/increases risk,
• 2 parts are: Violations of Material Conditions, and Inop Fitting Log.
• All functional fittings can only be logged open for a maximum of 24 hours.

• All DZ fittings to be closed at Twilight by DCPO’s and all divo’s to make reports to DCC or OOD.
• Security patrols ensure all fittings emit no white light and nooone is smoking.

• Moving DC equipment and dress out gear out into the passageway reduces confusion, response time,
• and not all equipment lost in one attack.

• The DCA will assist with how many fittings which Circle Zebra Fittings should be opened and when.
• Must receive permission from the CO to open the Circle Zebra fittings

NTTP/CGTTP 3-20.31

Major Conflagration means you have taken on more damage than the conventional DC organiztion can handle and require assistance from ALL stations!

• The CHENG is responsible to write the bill tailored to your ship to guide personnel to combat emergencies in the events of: Collision,
• Grounding,
• Explosion,
• Storm,
• Battle Damage,
• and a CBR incident;

• Your top priority is the SHIP’s own security! (make sure your ship can still perform all of it’s missions prior to sending any equipment or personnel)
• If you can take care of the ship you may make the call to proceed with the primary missions of R and A which are:
• Rescue Personnel from Water,
• Assist Another Unit in Distress,
• Assist Persons or Activities in Distress Ashore.

• Each circuit is used to communicate with a specific station. That station is responsible for clear comms and to track all information.
• Each station must know their auxiliary and alternate circuits to switch to ensure all comms continue.

If primary and alternate circuits are OOC the quickest way to rig comms and eliminate the need for a messenger is to rig the X-40-J from station to station to establish temporary comms.

The Communications Directory DC Plate lists all circuits available circuits that serve each space and should used to decide on an alternate circuit PRIOR to damage!

The Casualty Power and Casualty Communications Plate provides 3 dimensional information on X-40-J, Casualty Power, and Multi-Purpose Outlets.

• The P-100 pumps a 100 gallons a minute at 20 ft of suction lift.
• Can be fueled with either diesel or JP5.
• Weighs 165 lbs and must use an exhaust hose if operated inside the skin of the ship.
• Suction lift can be increased to 39ft when rigged for deep suction/used with an s-type eductor.

• Limit the # of personnel in the space with a ESP.
• Use caution when lowering it’s 90lbs into the space so that the power cord isn’t pulled free of it’s watertight stuffing tube
• The pump is water cooled, so always use a strainer and never pump liquid above 130 degrees.
• In emergencies, it is possible to pump diesel and JP5.
• Above 70ft of discharge run a pump in tandem, turning on the lower pump first to provide water to the higher pump.

The differences between the s-type and the perijet is that the s-type is designed to operate with a foot valve and one jet; the perijet operates more efficiently (6 jets and no foot valve)

• inadequate water supply can either backfill the compartment or not help the flooding at all.
• if the flooding is removed and the eductor is still operating, it becomes a very effective oxygen vacuum!

• The ship’s drainage system is made up of drainage plumbing,
• pumps,
• eductors,
• gravity drainage
• or a combination.

Flooding and asphyxiation are the biggest concerns

The two plates are Supply and Recirculation ventilation (Plate 9), and Exhaust ventilation (Plate 10).

• Provides operating seawater pressure to operate fire fighting, dewatering systems, and parasitic systems.
• All valves and pipes must be kept free of marine growth and operational for the most effective system capable of saving the ship.

• Electrostatic charge built up between two dissimilar metals in the presence of moving seawater.
• The softer metal gets eaten away particle by particle. If that softer metal is your system, you may have very large problems!

• use 2-1/2 inch hoses to jumper around the damaged section of pipe.
• Isolate the damage by closing all valves feeding the section,
• remove wye gates from fire plugs just on the other side of the damage,
• install the hoses and connect them with a 2-1/2 in double female connector.
• Open fire plugs and jumpering is complete.

Casualty Power provides a rapidly deployable system to jumper from a vital piece of gear, around a damaged electrical supply point, to a new one when all normal and backup supply sources are broken.

• Preserves Watertight Integrity,
• Simple to Install
• Flexible Interchangeable Parts (cables)
• Min. Weight & Space Requirements.

• 1. The DCA gets a report that a piece of gear that is vital to the ship’s mission has no normal power, no ABT/MBT sources, no alternate sources available due to damage.
• 2. The DCA explains this to the CO and requests permission/authority to rig casualty power
• 3. DCA requests an electrical source from the CHENG/EO.
• 4. DCA has the repair party personnel, under the supervision of the repair electrican, rig load/piece of gear to source (electrical). Once the repair electrician is satisfied about the completion of the rigging, he will request permission of the DCA to energize Casualty Power.
• 5. A ten second operational/flash/bump test of the cables will be ordered by the DCA. If test sat, the load is on casualty power.

• Upon receiving word of power loss, the DCA should consult the Vital Load Chart DC Plate.
• That plate gives a complete list of Vital Equipment and all of it’s normal and alternate power sources.
• This list allows for quick verification of all things that have failed prior to requesting permission from the CO to rig’.
• The Casualty Power, Casualty Comms’ plate gives you a 3-d listing of all of the routes. Use this plate to build your predetermined routes in your Casualty Power Bill or to build routes on the fly.
• Verify electric logic with EM’s!!!

The Repair Party Manual (RPM) is something that is a framework that everyone uses that gets tailored to your ship. So everyone knows where to look on their next ship. The Casualty Power Bill gets inserted in to Chapter 6 of the RPM

• In accordance with Tycom instructions for your ship.
• Recommend at least a knowledgeable team leader and an assistant trained on shoring watch.  
• The shoring type is will be determined by the situation and the Team Leader.

• What type of rupture or break,
• what type of fluid,
• what temperature fluid,
• what pressure fluid,
• size of pipe

• The size and shape of the hole.
• seawater pressure
• How fast do you have to react?
• Most holes going to the sea allow a tremendous amount of water into the ship; way more than we can pump out. It is important to slow it down by putting something in it or over it!

• Shoring is done when damage causes stresses in the ship due to weakened bhds or decks or added weight from flooding.
• We add strengthening members, called shores, to gain control of the progression of damage.

• I-type, K-type.
• I is direct compression and the strongest.
• Applying pressure at a 90 degree angle will resulting in the strongest shoring and avoid cross-axial stresses.

• Hardhats for swinging tools and material,
• safety glasses as applicable.
• Electrical conductivity with metal shores,
• Possible spark producing with metal shores.
• Telescoping shores falling upon personnel down ladderwells.

A ship’s structural members continually move with the ocean; a damage weakened area can move significantly more. Each movement has the potential to cause tears/breaks in the metal. The job of the shoring watch is to keep up the wedge applied pressure against the exaggerated motion so that the erected shoring doesn’t fall useless to the deck.

• 30 times the minimum butt thickness
• ensures the wooden shore will have adequate strength to do it’s job without breaking under strain.

• Appropriate wedge length for best holding power is 6 times the butt thickness.
• angle greater than 90 degrees between the two shoring members that form the K is likely to allow the two shores to flex themselves away from the strongback. So 90 degrees would be max effective angle.

can be used on any size pipe up to 150 psi. Not for Fuel Oil

• may be installed while system is under pressure, is limited by pipe size
• up to 100psi

• 30 minute patch resembling a cast that fits on any shape of a pipe.
• Up to 300 degrees and 150psi

capable of holding Firemain pressure but it is recommended that teams use extra bands and to double wrap all bands around the strongback.

uses either two wooden blocks or metal collars cut to the shape of the pipe and bolted together to exert pressure against a gasket. Amounts to another tool in the toolbox

• Provides an immediate oxygen source
• Not heat or flame resistant
• Only ten minutes of air
• Fragile

NSTM 079 V2

• Within 72 Hours of Arriving On Board
• Every 6 Months (3 Months USCG)
• From Watch Station/Work Space/Berthing
• Should be provide realism
• Document training

• Uses compressed oxygen
• Contains a Lithium Hydroxide scrubber
• Single use, disposable unit
• No heat protection
• Tamper evident
• O2 Pressure gauge
• Fragile
• 15 year shelf life

Guide for Building and Classing Naval Vessels

2

100%

200% of GQ Manning

• Pro:Quick
• Pro:Don't need to completely secure source
• Con: No Flammables
• Con: Fits only 1 size pipe

• Up to 150 psi
• Source should be secured, ideally

• Wedge
• Gasket
• Marlin
• Canvas

• Emergency Water Activated Repair Patch
• aka Syntho-Glass

• 2”x5’ & 4”x15
• Not for Pot Water or Flammables
• Less than 150 psi & Less than 300 degrees
• Gloves & Eyepro required

• 20 sec soak
• 30 min cure

• Application Procedure:
• 1.Secure System
• 2.Clean and Roughen Area
• 3.Don PPE, open pouch
• 4.Soak in Warm Water (20 sec)
• 5.Wrap Several Inches Beyond
• 6.Sets (hardens) in ~30 minutes

Temporary patch for low pressure piping systems

Box Patch

• Drill 1/4 inch holes at the extreme ends of cracks to prevent spreading
• Use marlin or oakum to caulk crack
• Do not wedge!

temporarily support structure until more permanent measures are possible.

Adjustable length 3’-5’ and 6’-11

• Put something in it
• Put something over it

• Primary Temporary Patch used for repair of piping
• Holds up to 150 psi
• Utilizes Canvas, Rubber gasket, marlin, wedges

• OPEN OVERBOARD DISCHARGE VALVE
• OPEN FIREMAIN ACTUATING VLV
• ENSURE VACUUM
• OPEN MAIN COV & BRANCH SUCTION

• Main
• Secondary
• Gravity

On DC deck (outboard)

• For spaces NOT served by main or secondary systems
• Large spaces – in all 4 corners
• Small spaces – 1 aft outboard

• Series of installed drainage for spaces fore & aft of main spaces.
• Smaller than & (normally) independent of main drainage.
• Should have own Eductor(s) & sea connections.

Installed piping, low in ship, to remove bilge water or moderate flooding from MAIN ENGINEERING SPACES.

Perijet

20 ft

• Hearing protection
• Operate in well ventilated area /(use exhaust hose)
• Extreme caution is required when refueling a hot or running engine.
• An additional crew member must standby with a portable AFFF or PKP fire extinguisher in the event that fuel is inadvertently spilled on hot engine parts.

• Suction = 3 in
• Discharge = 2 1/2 in

• 100 GPM @ 83 PSI while lifting 20 FT
• 71 GPM @ 62 PSI while lifting 44 FT
• 10 FT is recommended lift

20ft

• Means Rigging the P-100 to an eductor
• Eductor discharge connected back to P-100 via fire hose
• Achieves 39ft suction

530 GPM

Uses 2 1/2 INCH supply and 4 INCH discharge

• 1 1/2 INCH Supply and 2 1/2 INCH Discharge
• 2 1/2 INCH Supply and 4 INCH Discharge

265 GPM

• Firemain
• P-100

• Used when suction hose is used and pump is NOT submerged
• Used if star strainer makes pump too large to fit through the access

• When head is > 70 ft
• Start lower pump first

20 ft

• PUMPS 140 GPM with 70 FT total head
• PUMPS 200 GPM with < 50 FT total head

• 1)Introduce and Remove Air
• 2)Crew Comfort
• 3)Ammunition Preservation
• 4)Electronics Temperature Control

• 1)SUPPLY
• 2)EXHAUST
• 3)RECIRCULATION

• Removes air from one or more spaces, which then passes thru: 
• Filters
• Cooling Coils
• Fans/ductwork
• Reheaters
• Then discharged back into space

Exhaust

• Green Line
• Bold for watertight

• Orange
• bold for watertight

Only required in exhaust ducting which serves spaces where explosive vapors might be found

• Ventilation exhaust systems exhaust air from ventilated compartments and remove stale air from areas served with air-conditioning recirculation systems
• May be mechanically moved or natural ventilation

Blue line

Red Line

Brings in air from weatherdecks

• 1.Provide air to ship while simultaneously exhausting air
• 2.Habitability (crew comfort)
• 3.Ammunition preservation
• 4.Temperature control for electrical / electronic components

• 1.SUPPLY
• 2.EXHAUST
• 3.RECIRCULATION and A/C
• 4.CPS (Collective Protection System)

Electrically-Driven Equipment Whose Operation is a Must

• 2S - Power Source is 2S SWBD
• 4P - Via 440 Volt Power
• (2-233-4) - Power Panel Supplied

• Temporary Power if Permanent Sources Damaged
• Power Only to Vital Loads Critical to Ship Survivability

Green

Allow Power “Through” Bulkheads via Horizontally Rigged CP Cables

Because the Motor will Rotate Backwards if any 2 Phases are Reversed.

Red

Distribute Power to Vital Load

• Risers (& Riser Terminals)
• Bulkhead Terminals
• Cables
• Power Panels

• Repair Party Manual Ch 6
• Has rigging/derigging procedures
• Has Cas power checkoff sheet

• Rubber Gloves
• Voltage Tester
• Rubber Boots or Rubber Mat

• Preserves Watertight Integrity
• Easy to Install and Operate
• Flexible in Application
• Interchangeable Parts
• Min. Weight and Space Requirements

• Primary
• Auxiliary
• Supplementary
• Emergency

• 2JZ
• 4JZ
• 1JV
• Used for Direct Control

• X2JZ,
• X4JZ,
• X5JZ
• Used for backup to primary

• Enhances comms
• There are none for DC

Emergency Circuit

AFFF Station Comms

Equivalent to NET 51

• Maneuvering/Docking
• Equivalent to NET 53

• Primary DC
• DCC and all Lockers
• aka Net 80

• DCC + Repair 2
• Net 81

• DCC + Repair 3
• Net 82

• DCC + Repair 5
• Net 86

BLUE

Red

Green

• Casualty Power & Casualty Comms
• Communications Directory

• Self-Sufficiency
• Centralized Control
• Specialization
• Endurance
• Continuity of Command