Motor Sailers?

Discussion in 'Motorsailers' started by Viceroy, Apr 2, 2002.

  1. jimisbell
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    jimisbell Junior Member

    My Bruce Roberts 44M had all those features with the exception that the pilothouse did not extend all the way to the back of the cockpit, but it could have been made to do so. The engine was a 100 HP Perkins diesel ( hull speed at 1350 RPM) in an engine room with full standing headroom for a 6 footer. The aft cabin was a Queen sized bed and there were two single berths on either side in the bow. All the features you desire were in that boat and it can be made in either GRP or Steel. Mine was steel.
     
  2. Vega
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    Vega Senior Member

  3. Lyle Creffield
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    Lyle Creffield Junior Member

  4. VASCONY
    Joined: Dec 2006
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    VASCONY VASCONY

    Guilermo, I think, the Seaton's designed Cheoy Lee 53'; 63' and 78' also deserve to be in your list.
     
  5. VASCONY
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    VASCONY VASCONY

    Thanks for that! I even have visited the Fantasi yard-a lot to say.
    What's your opinion of the new Island Packed SP Cruiser:?:
    Regards
     
  6. Vega
    Joined: Apr 2005
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    Vega Senior Member

    I am sure that it is a fine boat and that it will perform as Bob Johnson had intended:

    http://www.ipy.com/PDFFiles/SPCruiserDesignerComments.PDF
    http://www.ipy.com/Default.php?Page=SPCruiser
    http://www.hellieryachts.com/articles/spcruiser.phtml

    But boats come in all styles and shapes, and this kind of boat is just not my cup of tea. I can not say that I find it beautiful, and I find the interior... kind of caravan, house like thing. Of course, it has a good quality and functional interior and this is a personal opinion that has to do with personal aesthetical preferences.

    If I would choose a heavy motorsailor with trawler like capacity, I would choose a classical design, and a boat with an interior that looked like a boat interior, but again, this has to do strictly with personal taste.

    My favorite heavy one is the Noordkaper 43:

    http://www.noordkaper.com/Engels/index.htm

    Regards
     
  7. Guillermo
    Joined: Mar 2005
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    Guillermo Ingeniero Naval

    Thanks Vascony. I'll review them.
    Cheers.
     
  8. VASCONY
    Joined: Dec 2006
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    VASCONY VASCONY

    Guillermo, here are some pictures for a.m. motorsailors and also Cheoy Lee 52'
    and Frances 34"
    serenedream29.jpg

    GOOD_GRIEF_UNDER_SAIL.jpg

    14(2).jpg

    Sweden04Aug 015.jpg
    Regards,
    Vascony
     
  9. Guillermo
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    Guillermo Ingeniero Naval

    Thanks Vascony. Out of town for several days, I'll work on those when back.
    Cheers.
     
  10. Gary Walth
    Joined: Dec 2006
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    Gary Walth New Member

    Bruce Roberts 45 under-construction

    This is my first big project. A BR44 Mauritus built and extended by a kind old soul. He sailed it for 15 years as a liveaboard with his wife and then let it float unattended for another 12. I am putting a pilothouse on with bow thruster; my engine is a 50 hp perkins and I think with the new bulwarks and doghouse I'll need it. I designed it with a 3D CAD package that is intended for architecture but was able to force it into curvatures. Any comments experts.
     

    Attached Files:

    Last edited: Dec 27, 2006
  11. jimisbell
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    jimisbell Junior Member

    My BR M44 used the 100hp (6-354) and that was suffient to keep it going at hull speed and burned little fuel. BUT...my GS 36 uses a 50HP Perkins (4-108) and that is barely suffient to keep it at hull speed and using almost as much fuel as the 6-354 did and the difference in weight is significant. The GS 36 weighs only 18,000 lbs and the BR M44 weighes in at 29,000 lbs. I think the 50 HP Perkins is too small for your boat. At least for good longivity. The 4-108 will run at 2800 RPM while the 6-354 will run under 1400 RPM. Half the wear.
     
  12. FAST FRED
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    FAST FRED Senior Member

    "The GS 36 weighs only 18,000 lbs and the BR M44 weighes in at 29,000 lbs."

    With 3 hp per ton most hulls work fine at cruise speed.
    30,000 lbs is 15 tons so would need about 45 cont hp , a 60 hp engine should do.

    Unfortunatly the 4-107 is about 25hp in cruise if any longevity is desired .That 50 hp is an add mans dream.

    Perhaps a different choice is in order.

    At 25 hp the boat should be propped to cruise at .8 X Sq Rt LWL.

    FF
     
  13. jimisbell
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    jimisbell Junior Member

    I think 20,000 lbs is only 10 tons
     
  14. Stephen Ditmore
    Joined: Jun 2001
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    Stephen Ditmore Senior Member

    Naval Architecture uses long tons. 1 long ton = 2240 pounds. You'll also come across metric tonnes. 1 metric tonne = 1000 kg = 2204.5 pounds.
     

  15. yipster
    Joined: Oct 2002
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    Location: netherlands

    yipster designer

    go metric !

    good putting that straight but to most metric souls like forexample in supermarkets a pound is half a kilo
     
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