Author Topic: FEW MORE WORDS TO HELP HELP YOU ALONG.  (Read 6753 times)

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tees g

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FEW MORE WORDS TO HELP HELP YOU ALONG.
« on: August 02, 2010, 13:41:54 »
For all the members who do not get there feet wet with salt water.

GROSS TONNAGE...This is the cubic capacity (volume) of certain parts of the ship which are added
                          together and converted into tons.

NET TONNAGE....This is a tonnage on which port & harbour dues are paid and is the gross  tonnage
                       less certain deductions authorized by law, such as machinery accom, spaces.

DISPLACEMENT...This is the weight of the tug and everthing on board when floating at the designed
                        draft.

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #1 on: August 02, 2010, 13:57:33 »

DIMENSIONS....Length. (overall).
                     Length.( between perpendiculars) ,or registered length.
                     Length waterline
                     Breath(moulded )
                     Depth (moulded)
                     Draft.

LIGHT DISPLACEMENT...Is the weight of the hull, engines,gear boxes and spare parts.

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #2 on: August 02, 2010, 14:15:51 »

LOAD DISPLACEMENT....Is the weight of the hull and everything on board when floating at the
                                designed summer draft.

STAUTORY FREEBOARD...Is the distance from the upper edge of the summer load line( i.e. line through
                                 centre of the disc ) to the upper edge of the deck line.

SHEER....may be defined as the rise of a vessels deck fore and aft.It adds buoyancy to the ends where
            it is most needed (due to the form being finer here).

CAMBER...Or round of beam helps to shed water from the decks.

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #3 on: August 02, 2010, 14:39:36 »
FLARE or FLAM....is the fall out of the vessels bow plating, it increases bouyancy thus helping to prevent
                   the bow diving deeply into head seas,it also increases breadth of the forecastle head
                       and allows the anchors to drop clear of the plating.

TUMBLEHOME....is the fall in of the side plating from the waterline to upper deck. In days of smaller vessels
                      its purpose was to keep deck houses and superstructures clear of  quays. 
                      There was also a small effect on stability.
                      Modern vessels have very little, if any tumblehome.

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #4 on: August 02, 2010, 14:57:55 »
RISE OF FLOOR... Is the distance from the line or floor to the horizontal,measures at the ships side.
                        The object is to allow water in double bottoms to drain to the centre line,
                        ( 15 cm --20cm ) in modern vessels.

SCANTLINGS.....is the strength factor of the component parts of a ship.
                      A ship with heavy scantlings denotes one in which the frames, bulkheads and shell
                      plating are thicker than normal.

Footski

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #5 on: August 02, 2010, 22:25:49 »
Thanks for those tees. Very helpful for us landlubbers!  :) :)
Barry

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #6 on: August 03, 2010, 02:10:55 »

HI FOOTSKI.

Will give you a few more when I return home later in the day.

Have being called in to sail the Shin-Sho. (see her pic under tanker  with the svitzer sun passing).

tees.

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #7 on: August 13, 2010, 05:56:17 »

  3 Types of hull construction:
 
     CLINKER / CLENCHER.......When the planks run fore and aft and overlap each other.
                                       ( Greatly used though out the Yorkshire coast uk.thanks to
                                         our viking friends. )

    CARVEL.......When the planks run fore and aft and do not overlap leaving a smooth surface.

    Diagonal......When the planking is doubled and theplanks of the outer skin run diagonally  across
                     the planks of the inner.
    This type of hull construction is used for wooden boats not steel tugs.

    KEEL......The keel is is the backbone of a tug   
    FRAMES....Frames are the ribs of the tug, and run from the keel to gunwale.
   
    GUNWALE... Is the top edge of the side of the tug.
    FLOORS......Are fitted at every frame. Triangular plate holding the base of the port /starboard
                     frames together adding strength of the tug.
                   (most people think a floor is something  you walk on ,in boat /ship building a floor is
                     vertical )

   BULKHEADS.....Run right across the tug and divide the tug into separate compartments.

   BULWARKS.....Are barriers fitted to the deck edge to protect the crew and play no part of the
                      strength of the tug.
                     
                      (Open bulwarks are known as Railings are usuallly 1 m high.     

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #8 on: August 13, 2010, 07:29:11 »

  BOW......The front or forpart of a tug.
  STERN....The after end of a tug.
  AFT.......Towards the stern.
  PORT......The left side of a tug looking forward. (red.)
  STARBOARD...The right side  of a tug looking forward. (green.)
  MIDSHIPS.....In the middle of the tug.
 
  BITTS.....Pairs of small stout posts.
  BULWALKS....The tugs side above the deck.
  CLEAT.....Used for belaying ropes.
  DOGS......Small steel handle / clip used to secure doors ,hatch covers.
  FENDERS.......Made of rubber,cork, rope.
  GANTINS......A rope running through a block at the masthead used for hoisting thing aloft.
  HATCH........The cover of a hatchway.
  HATCHWAY...An opening in the deck.
 
  DRAUGHT......The depth of the keel below the waterline.
  FREEBOARD....The height of the tugs upper deck above the waterline.
  LOADLINE.......A line 18 inches long running through a ring cut and painted white on both
                      sides of a vessel.

  KNOT.......A speed of one sea mile per hour.
  NAUTICAL / SEA MILE.....6080 ft........10ml sea =11.5 land mls.       
   

Model Tug Man

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #9 on: August 13, 2010, 09:01:40 »
Port hole......The little round window in the wall.
VGJQ

tees g

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Re: FEW MORE WORDS TO HELP HELP YOU ALONG.
« Reply #10 on: August 14, 2010, 05:03:53 »

 Mmmm not little round ones on the AYTON / ORMESBY CROSS