Term
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Definition
| Allows us to open a CPA with a contact to avoid collision or provide for a wide passage |
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Term
| Computing Avoidance Course |
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Definition
1.Find contact’s true course and true speed.
2.Determine the distance by which you want to avoid the contact.
3.Draw a new DRM from M2 tangent to the avoidance distance. This is your new CPA.
4.Parallel new DRM to end of em vector
This new rm vector represents all the possible true courses and true speeds to avoid the contact.
The course you pick will be determined by: true course, true speed, or time required to avoid. |
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Term
| Captain’s Contact Report contain? |
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Definition
Current relative bearing and range
Target Angle
Bearing drift
CPA bearing, range, time
Contact’s true course and speed
Navigation Lights visible
Type of Situation
Recommendation to open CPA |
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Term
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Definition
Good morning, afternoon, evening Captain I have a contact _____ degrees relative at ____ yds with a ____ target angle.Contact has left/right/no bearing drift and is on course ____ at ____ kts. CPA will be on the port/stbd bow/quarter/beam at ____ yds in ____ minutes. I can see range/ masthead/ port/stbd running/stern light(s).
The contact is identified as (name of ship) / merchant.This is a crossing/ overtaking/meeting situation.
I intend on maintaining course and speed / coming right/left ___ degrees to open CPA to ___ yds on the port/stbd bow/quarter/beam in ___ minutes. |
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Term
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Definition
| ship less than 450ft long (MCM, MHC, PC) |
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Term
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Definition
| ship longer than 450ft (all others) |
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Term
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Definition
| ordered arrangement of two or more ships |
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Term
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Definition
| ordered arrangement of two or more ships |
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Term
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Definition
| ordered arrangement of two or more formations |
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Term
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Definition
principle ships of a formation
the Air Craft carrier/Supply Ship |
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Term
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Definition
ships protecting the main body
DDG/DD/CG |
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Term
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Definition
| the ship on which all other ships keep station |
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Term
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Definition
| the prescribed location of a ship in a formation in reference to a guide |
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Term
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Definition
| the intended reference course of the formation |
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Term
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Definition
1.Base - intended reference speed
2.Stationing - used when changing station
3.Maximum - highest speed a ship is capable |
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Term
| Standard Distance - the distance between two ships |
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Definition
small ships - 500yds
large ships - 1000yds
small and large ships - 1000yds |
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Term
| 2 Basic Types of Line Formations |
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Definition
Column: Column/Loose line of column/ Column open order
Line: Line abreast/Loose line abreast/
Line of bearing/Diamond |
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Term
| Column is used for what reasons? |
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Definition
Easiest formation
Formed in a line of bearing ahead or astern of the guide.
Used to transit restricted waters |
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Term
| Line Abreast is used for? |
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Definition
Formed in a line of bearing abeam of the guide
Used for searches |
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Term
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Definition
| Formed in either a relative or true bearing from the guide other than ahead, astern, or abeam. |
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Term
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Definition
Provides additional maneuvering room without increasing length of the formation
Increases mutual anti-aircraft fire |
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Term
| Forming Rules are designated by what person? |
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Definition
As directed by Officer in Tactical Control (OTC)
Executed on FORM signal |
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Term
| Two types of forming procedures |
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Definition
Forming procedures
Normal – form on guide in order of sequence number
Quickest – form on guide nearest ship first |
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Term
When forming or changing a formation who reacts first?
. |
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Definition
| the guide comes to base course and speed all other ships fall in on the guide |
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Term
| Who determines who the guide will be? |
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Definition
Guide designated by the senior officer in tactical command (OTC)
remains the guide until another is designated or until a maneuver results in an automatic shift of the guide |
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Term
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Definition
| A change of course, speed, formation, or any combination of these, made by a ship to adjust position or to take a new position. |
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Term
| What are the 3 different movements of a formation? |
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Definition
1.Turn (change of course and formation)
2.Corpen (change of course)
3.Formation (change of formation) |
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Term
| The Turn during maneuvering consists of what? |
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Definition
Each ship turns simultaneously on signal.
Ships stay on the original true bearing from the guide.
Can be done from any formation.
Drill Analogy (flanking movement) |
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Term
| What does a a Corpen (Wheeling) consist of during manuvering? |
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Definition
Each ship changes course but the formation remains the same.
Ships stay on the original relative bearing from the guide.
Can be done only from column, line abreast or diamond.
Drill Analogy (column movement |
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Term
| Corpen (Search Turn) consists of what? |
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Definition
1.Used to maintain search area integrity
2.Can be done only from line abreast or loose line abreast
3.Ships must be at 1,000 or 1,500 yds separation
4.Guide automatic shifts to the outboard ship
5.Ships “swap” sides in relationship to the guide.
6.Course Change Limitations:
Minimum – 45 degrees
Maximum – 135 degrees |
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Term
| Exchange of Station Column |
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Definition
lead ship hauls to port
rear ship hauls to starboard |
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Term
| Exchange of Station Line of Bearing |
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Definition
| rear ship takes station astern |
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Term
| Exchange of Station Inverting Column |
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Definition
last ship hauls out
other ships fall in as it passes |
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Term
| Exchange of Station Line Abreast |
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Definition
| port ship takes station astern |
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Term
| The guide is:Lead ship of a column |
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Definition
| Forming or Wheeling a Column or Diamond |
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Term
| The guide is the Last ship of a column when? |
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Definition
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Term
| The guide is the Pivot ship when? |
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Definition
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Term
| The guide is the Outboard ship when? |
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Definition
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Term
| Avoid other ships that have right of way to include? |
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Definition
ships engaged in
minesweeping
flight operations, or
underway replenishment
ships in the main body
ships in the screen
3-2-1 rule
Junior ships stay clear of senior ships
Usually better to pass astern |
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Term
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Definition
Obey the 3-2-1 rule
When operating with Carriers: pass no closer than 3 nm on the bow, 2 nm abeam, or 1 nm astern of the Carrier
When operating around other ships: in thousands of yards not nms |
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Term
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Definition
Defines your station in relationship to the guide as an area instead of a point.
Easier on the escorts
Must actively “patrol” the sector |
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Term
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Definition
Direction relative to True North
Range from Formation Center
Station 0307-0407
First set #:Boundary in tens of degrees from true north
Second set#:Range in thousands of yards from the center |
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Term
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Definition
Oilers (
Ammunition Ships
Combat Stores Ships
Fast Combat Support Ships
Aircraft Carriers (CV/CVN)
Amphibious Assault Ships (LHA/LHD) |
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Term
| Underway Replenishment (UNREP) |
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Definition
| any method of transferring fuel, ammunition, and stores from one ship to another |
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Term
| Two types of underway replinishment: |
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Definition
Connected Replenishment (CONREP)
Vertical Replenishment (VERTREP) |
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Term
| Connected Replenishment (CONREP) |
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Definition
| a method of transferring fuel, ammunition, and stores from one ship to another through lines and hoses connecting the two ships. |
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Term
| Vertical Replenishment (VERTREP) |
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Definition
| a method of transferring ammunition and stores from one ship to another by helicopter |
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Term
| Replenishment at Sea (RAS) |
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Definition
| specifically for transfer of stores or ammo |
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Term
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Definition
| any method of transferring fuel |
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Term
| Connected Replenishment Methods |
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Definition
1. CARGO: STREAM / Highline Method
2. FUEL:STREAM Astern Refueling/Close In Method |
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Term
| What does STREAM stand for, and how is it accomplished? |
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Definition
Standard Tensioned REplenishment Alongside Method
Uses a tensioned spanwire to support the cargo trolley or the fueling hose from the delivery ship to the receiving ship |
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Term
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Definition
Responsible for staying on
UNREP CORPEN and UNREP SPEED
Guide
Usually the delivery ship |
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Term
| Stations for recieving ship |
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Definition
1.Lifeguard Station:1000 yards astern
2.Waiting Station:500 yards astern port or stbd side
3.Replenishment Station Stbd/port 090R 50-60yds |
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Term
| Phone and Distance Line – |
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Definition
A line between ships that displays distance markers and contains a sound-powered telephone line
Go Rub Your Balls With Grease
Flags positioned 20ft apart
at night:Double Blue Chemlights at
60, 100, 140, 180 feet |
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Term
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Definition
| – A wire rope that is tensioned between ships (part of the STREAM method) |
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Term
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Definition
Golf – flown by the guide
Prep – flown by the approach ship
Romeo – flown by both ships to indicate specific UNREP events |
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Term
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Definition
| anywhere within 5,000yds of Delivery Ship except replenishment station waiting station and lifeguard station. |
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Term
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Definition
1.Examine the wake of control ship
Your wake should be parallel
2.Match speeds with control ship
3.Determine Lateral Separation Using Radian Rule :150ft (50 yds) – 180ft (60yds) |
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Term
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Definition
| D = angular sep * distance to contact ship / lateral distance in yards |
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Term
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Definition
1.Accelerated normal breakaway.
Either ship can initiate for any reason
engineering casualty steering casualty
2.Sound five or more short blasts on whistle
3. Sound “Emergency Breakaway” over 1MC |
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