Prop guard HP loss....

Discussion in 'Outboards' started by Roly, Jan 16, 2010.

  1. Roly
    Joined: Jul 2005
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    Location: NZ

    Roly Senior Member

    What loss can you expect from a prop guard?
    Is it proportionally higher for a 70hp, say as opposed a 15Hp?
    We launch on a surf beach and often have to do donuts waiting for the opportune moment. Also, coming in, have to dodge the human flotsam.
    Bit of a freakout really. It is an accident waiting to happen.
    The rescue boats weave thru the crowd with prop guards like the people
    ain't there.
     
  2. gonzo
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    gonzo Senior Member

    A jetdrive is the ideal setup
     
  3. Guest625101138

    Guest625101138 Previous Member

    1 person likes this.
  4. Roly
    Joined: Jul 2005
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    Roly Senior Member

    Agreed,but an inboard is heavier & I don't fancy fishing off a jetski or shelling out 30k for a skidoo. My old 70's fleetline/70hp OMC, is a heavy old girl but for 3.5k gets me fishing when I'm not working on my sailboat.
    Light = easier to launch,especially on a surf beach in soft sand.
    Hence my quest to make existing safer.
     
  5. gonzo
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    gonzo Senior Member

    I was talking about jet outboards.
     
  6. Frosty

    Frosty Previous Member

    Find another beach.
     
  7. powerabout
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    powerabout Senior Member

    The engine manufactures dont make them..there's a good reason not to use one.

    On your 70, take one spark plug lead off and then use it...its about the same.
    Saying that all guards are different so there are many different results.
     
  8. Roly
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    Roly Senior Member

    A bit like finding a new wife. I'm kinda married to this beach...Its just easier & cheaper to launch here.;)
     
  9. powerabout
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    powerabout Senior Member

    If you think the skeg is harmless versus the prop which comes next..one might guess youv'e never run over anything
    Hence the comment in the other thread where the USCG says they dont see data where a guard saved anyone.

    A bit like double hulled tankers....the greenies decided they were good so we all get a warm feeling about them.
     
  10. Frosty

    Frosty Previous Member

    Ok,-- then get good insurance. Its a bit more expensive than a guard but is more protection.
     
  11. gonzo
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    gonzo Senior Member

    A guard is different from a skeg. It is a shroud similar to a kurt nozzle with grates on both ends. The performance suffers, but it is worth it for rescue operations.
     
  12. powerabout
    Joined: Nov 2007
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    powerabout Senior Member

    Gonzo
    Yes but what I meant was if you run over something going forwards the gearbox gets you first.

    I bet more people have had horrific injurys at surf beaches from being hit by a surfboard skeg than an outboard?
    Being hit by a shark at speed is still going to hurt regardless of whether its mouth is open.
     
  13. gonzo
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    gonzo Senior Member

    The edge of the surfboard is what usually hurts you.
     
  14. Frosty

    Frosty Previous Member

    Swimmers -outboards is like errrm meat grinders.
     

  15. Submarine Tom

    Submarine Tom Previous Member

    I feel the main point may have been missed here.

    I will present it as a possibility.

    Yes, scoop gouges out of human flesh from a spinning propeller are ugly,

    painfull and even life threatening, being hit in the head first by a very

    heavy, moving hull is potentially even worse. Consiousness is likely lost

    followed very quickly by drowning. IMHO, it is better to take all measures

    to avoid contact in the first place. I think the spinning, ungaurded prop is

    not the major concern here. The bottom line is SLOW DOWN and use all the

    sets of eyes you have available to you on board to make absolutely sure

    you don't hit anyone, it's your resposibility.

    -Tom
     
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