L.O.A. vs Centerline Length

Discussion in 'Boat Design' started by rdeputy, Oct 31, 2005.

  1. rdeputy
    Joined: Oct 2005
    Posts: 7
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Huntsville, AL

    rdeputy Junior Member

    I'm gathering information on various products within the industry and noticing that some manufacturers quote LOA while others reference centerline length. What's the difference between the two? Does one only reference the boat while the other would include any extensions such as motor brackets and/or anchor rollers?

    RD
     
  2. tom28571
    Joined: Dec 2001
    Posts: 2,474
    Likes: 116, Points: 63, Legacy Rep: 1728
    Location: Oriental, NC

    tom28571 Senior Member

    LOA - Length over all, including bowsprits, etc. Does not usually include motors, brackets or outboard rudders.

    LOD - Length on deck. The best measure of hull length.

    LWL - Length of the waterline. Best measure of size of the boat along with beam.

    Centerline length - never heard of it except in relation to distance around the sheer.
     
  3. gonzo
    Joined: Aug 2002
    Posts: 15,608
    Likes: 1,101, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    It is a new marketing gimmick.
     
  4. Cliff Pope
    Joined: Nov 2005
    Posts: 21
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: UK

    Cliff Pope Junior Member

    Traditionally LOA does NOT include the bowsprit. This is a modern advertising gimic to make boats sound bigger than they are.
    My boat (1880 gaff cutter) is a true 21 foot LOA. If I added in the projecting bowsprit (8 feet) and the overhanging boom (2 feet) that would give a bogus "LOA" of over 30 feet!
     
  5. D'ARTOIS
    Joined: Nov 2004
    Posts: 1,068
    Likes: 18, Points: 0, Legacy Rep: 321
    Location: The Netherlands

    D'ARTOIS Senior Member

    No, I am sorry but according to me things are as follows:

    LOA = Length Over ALL = measures the total boat's length

    LOD = Length Over Deck = the total boatlength without extensions

    LBP = Length Between Perpendiculars (often, not always) LWL

    LWL = Length OF WATERLINE

    Length over the Centerline is equal to LOD

    :cool:
     
  6. cyclops
    Joined: Feb 2005
    Posts: 1,059
    Likes: 5, Points: 0, Legacy Rep: 38
    Location: usa

    cyclops Senior Member

    Your definations are no longer valid. Modern PR people have the latest definations.
     
  7. SailDesign
    Joined: Jan 2003
    Posts: 1,964
    Likes: 127, Points: 73, Legacy Rep: 650
    Location: Jamestown, RI, USA

    SailDesign Old Phart! Stay upwind..

    Cyclops - has it ever occurred to you that the PR folks may have it wrong. The traditional definitions are still the right ones, and the PR guys are full of s#it.
    Nobody seriously reads the PR crud any more. When you talk to your buddies in the bar, do you refer to your boat using the traditional (correct) terms, or do you use the terms the PR guys coined?
    Steve :)
     
  8. cyclops
    Joined: Feb 2005
    Posts: 1,059
    Likes: 5, Points: 0, Legacy Rep: 38
    Location: usa

    cyclops Senior Member

    We only talk about vintage speedboats and vintage racing hydros up to aircraft piston engine unlimiteds. And the safest class of all vintage boats. Jersey speed skiffs. :) :)
     
  9. D'ARTOIS
    Joined: Nov 2004
    Posts: 1,068
    Likes: 18, Points: 0, Legacy Rep: 321
    Location: The Netherlands

    D'ARTOIS Senior Member

    According to me, PR people may invent anything they want to - we are here on a serious (hope so) level were we are saved from the stupidities those people invent in order to sow their no-knowledge.

    Do you meet more of those freakish descriptions?

    I knew the term larboard when it was almost too late.

    Just engaged I sailed the Zuiderzee (IJsselmeer) when a large motoryacht manoevred in my way.
    The guy on deck screamed "Larboard, larboard"!!

    Never in my life I heard this, so I screamed back: what for the #### is "larboard" - The large yacht at that moment hit the ground. After almost 40 years I remember her name "Ninja" from Lowestoft.
    Later on, I discovered that larboard is equal to "port" be it an 18th century term.
     

  10. cyclops
    Joined: Feb 2005
    Posts: 1,059
    Likes: 5, Points: 0, Legacy Rep: 38
    Location: usa

    cyclops Senior Member

    Public relations ( PR ) is a fully controlled division of the Marketing division. Which, is in the direct control of sales. Which, the COO, :), controls. Do YOU ever believe a COO?
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.