Everything Old is new again - Flettner Rotor Ship is launched

Discussion in 'Boat Design' started by rwatson, Sep 1, 2008.

  1. rwatson
    Joined: Aug 2007
    Posts: 4,988
    Likes: 127, Points: 63, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member


    Nope. They dont. They produce far more propulsion
     
  2. JosephT
    Joined: Jun 2009
    Posts: 498
    Likes: 25, Points: 28, Legacy Rep: 218
    Location: Roaring Forties

    JosephT Senior Member

    Absolutely brilliant. Is it just me though, or am I the only one tempted to sit and spin on the top of one of those rotors?

     
  3. 1J1
    Joined: Sep 2012
    Posts: 88
    Likes: 0, Points: 6, Legacy Rep: 10
    Location: .

    1J1 Junior Member

  4. JosephT
    Joined: Jun 2009
    Posts: 498
    Likes: 25, Points: 28, Legacy Rep: 218
    Location: Roaring Forties

    JosephT Senior Member

    Looks like a fun project. You could swap out the mast on any RC sailboat for a rotor to try this out. Very interesting project. Thanks for sharing! :cool:
     
  5. rwatson
    Joined: Aug 2007
    Posts: 4,988
    Likes: 127, Points: 63, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Attached Files:

  6. rwatson
    Joined: Aug 2007
    Posts: 4,988
    Likes: 127, Points: 63, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Ferry "Viking Grace" Planned Retrofit with Rotor

    "Preparations for the retrofit are underway, with the installation scheduled to take place during the second quarter of 2018, Norsepower said.

    Viking Grace will be retrofitted with one medium-sized Norsepower Rotor Sail unit that is 24 meters in height and 4 meters in diameter, becoming the first-ever global LNG/wind electric propulsion hybrid ship."

    "In 2015, Norsepower and Bore reported a successful sea trial of Rotor Sail Solution, with two small units of the system installed on board Bore’s M/S Estraden, a 9,700 dwt roll-on/roll-off (RoRo) carrier. Measured and verified by NAPA, a maritime data analysis, software and services provider, Rotor Sail Solution delivered fuel consumption reductions of 6.1% for Estraden, Norsepower informed."

    5% savings on the Estraden with these two little cylinders is pretty impressive
     

    Attached Files:

    Last edited: Mar 15, 2017
  7. 1J1
    Joined: Sep 2012
    Posts: 88
    Likes: 0, Points: 6, Legacy Rep: 10
    Location: .

    1J1 Junior Member

    http://www.motorship.com/news101/engines-and-propulsion/maersk-tankers-to-host-flettner-rotor-trial

    "The project represents the first installation of Flettner rotors on a product tanker, and will involve two 30m tall rotors fitted to a 109,647 dwt LR2 vessel between mid-2018 and the end of 2019. The project partners anticipate fuel consumption savings of 7-10% on typical global shipping routes."
     

    Attached Files:

  8. rwatson
    Joined: Aug 2007
    Posts: 4,988
    Likes: 127, Points: 63, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    and I noticed

    "The Norsepower rotor sail, made from lightweight composites, is an updated version of the Flettner rotor, which uses the Magnus effect around a spinning cylinder to harness wind power to propel a ship.


    The project is the third part of an ETI initiative to further development in fuel saving technologies. As reported, the organisation has also funded projects to research, develop and test waste heat recovery systems, with AVID Technology and Royston, and to develop a highly efficient propulsion system (comprising propeller, rudder and pre- or post-swirl devices) with Teignbridge Propellers International."
     
  9. daiquiri
    Joined: May 2004
    Posts: 5,361
    Likes: 233, Points: 73, Legacy Rep: 3380
    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

  10. kerosene
    Joined: Jul 2006
    Posts: 946
    Likes: 42, Points: 28, Legacy Rep: 358
    Location: finland

    kerosene Senior Member

    Does anyone that mean that our houshold robot and flying car are about to become reality too?
     
  11. rwatson
    Joined: Aug 2007
    Posts: 4,988
    Likes: 127, Points: 63, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Well done.

    I actually had to scan and copy the pages from my personal copy way back in the early part of the thread because I couldnt find it online.

    Probably one of the better articles one the practicalities of the concept, as it actually goes into the economics of the exercise.

    I wonder what became of the boat ?
     
    Last edited: Mar 28, 2017
  12. alan craig
    Joined: Jul 2012
    Posts: 104
    Likes: 4, Points: 18, Legacy Rep: 14
    Location: s.e. england

    alan craig Senior Member

    Daiquiri, that Pop. Science magazine was so good I read almost all of it!
     
  13. daiquiri
    Joined: May 2004
    Posts: 5,361
    Likes: 233, Points: 73, Legacy Rep: 3380
    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

    Yeah it was an interesting read, but most of articles and ads are technically way outdated.
    Sure it brought back the taste of 80s, which I occasionally liked - but mostly didn't. I am not a kind of guy who likes to look back, so nostalgic readings and old pics hardly catch on with me. ;)
    Cheers
     
  14. Rurudyne
    Joined: Mar 2014
    Posts: 1,027
    Likes: 18, Points: 38, Legacy Rep: 155
    Location: North Texas

    Rurudyne Senior Member

    And now for somemagnus completely different (no, not my Transformers fan fic novels):



    A few comments:

    For this use stability might be obtained by a tandem and use relative rotational speed for attitude adjustment.

    The Magnus effect and the ekronoplan? My totally random thought considering that, if he realized it or not, our experimenter was forcing air under his buckets and probably deriving some lift that way. So if that makes a lot of difference what about rotors combined with surface effect?

    The paddle like slats or spoons were exactly the wrong approach.
     

  15. Rurudyne
    Joined: Mar 2014
    Posts: 1,027
    Likes: 18, Points: 38, Legacy Rep: 155
    Location: North Texas

    Rurudyne Senior Member

    Looked around and found another example with tandem rotors ... turns out I was right: very controllable.

    Still, an aircraft that depends on power for lift, that cannot even auto-gyro like a copter can, makes a dandy drone but I wouldn't much want to fly in one.
     
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.