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: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    The lift from the 'buckets' only has to be greater than the weight of the whole plane. Actual altitude is controlled by the angle of attack and the forward thrust of the propellor. eg. An airship derives lift from the hydrogen gas, but the altitude of the zeppelin is a function of the tail fin and the propellors.

    Banking is a function of ailerons , which are totally absent in a rotor wing, so pilot control would be a problem in a full size plane.

    Modern F1 racers use the 'rotor' effect somewhat. The wide exposed front tyres, with the top rotating forward, creates significant downward thrust.
     
  2. 1J1
    Joined: Sep 2012
    Posts: 111
    Likes: 15, Points: 18, Legacy Rep: 10
    Location: .

    1J1 Senior Member

  3. Pericles
    Joined: Sep 2006
    Posts: 2,015
    Likes: 141, Points: 63, Legacy Rep: 1307
    Location: Heights of High Wycombe, not far from River Thames

    Pericles Senior Member

  4. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Fantastic. It had the first photos of Flettners second Rotor ship, the Barbara, that I have seen
     

    Attached Files:

  5. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

  6. 1J1
    Joined: Sep 2012
    Posts: 111
    Likes: 15, Points: 18, Legacy Rep: 10
    Location: .

    1J1 Senior Member

  7. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    It looks like SHELL is going to install trial Rotors on some of their ships

    "Copenhagen, Helsinki, & London – 14 March 2017: Norsepower Oy Ltd. in partnership with Maersk Tankers, The Energy Technologies Institute (ETI), and Shell Shipping & Maritime, today announced that it will install and trial Flettner rotor sails onboard a Maersk Tankers-owned vessel. The project will be the first installation of wind-powered energy technology on a product tanker vessel, and will provide insights into fuel savings and operational experience. The rotor sails will be fitted during the first half of 2018, before undergoing testing and data analysis at sea until the end of 2019. Maersk Tankers will supply a 109,647-deadweight tonne (DWT) Long Range 2 (LR2) product tanker vessel which will be retrofitted with two 30m tall by 5m diameter Norsepower Rotor Sails. Combined, these are expected to reduce average fuel consumption on typical global shipping routes by 7-10%."

    https://norsepowerltd-public.sharep...borate to test wind propulsion technology.pdf
     
  8. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Video showing working Rotors on Norsepower Ferry, $200,000 savings in Fuel per year

    Rotor.png

     
  9. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Rotor2.png
     
  10. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Note to self - great way to build a lightweight Rotor
     
  11. 1J1
    Joined: Sep 2012
    Posts: 111
    Likes: 15, Points: 18, Legacy Rep: 10
    Location: .

    1J1 Senior Member

  12. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    A great presentation on the commercial performance of Flettner Rotors - including the MV Estraden

     
  13. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member

    Small catamaran using Flettner Rotor in high winds.

     
  14. rwatson
    Joined: Aug 2007
    Posts: 6,163
    Likes: 495, Points: 83, Legacy Rep: 1749
    Location: Tasmania,Australia

    rwatson Senior Member


  15. Dolfiman
    Joined: Aug 2017
    Posts: 1,515
    Likes: 667, Points: 113
    Location: France

    Dolfiman Senior Member

    This is quite recently posted video (sept 2016) of the Enercon, if not already showed in this long interesting thread:
     
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.