Model Boat Mayhem

Mess Deck: General Section => Full Scale Ships => Topic started by: tigertiger on March 14, 2017, 12:23:09 pm

Title: Just going out for a spin.
Post by: tigertiger on March 14, 2017, 12:23:09 pm

https://www.theguardian.com/environment/2017/mar/14/spinning-sail-reboot-cut-fuel-make-ocean-tankers-greener







[size=2.25rem]'Spinning sail' rebooted to cut fuel and make ocean tankers greener



Invented a century ago, rotating columns fixed to ship’s deck interact with wind to provide forward thrust and could make 10% fuel saving[/size]

Title: Re: Just going out for a spin.
Post by: Colin Bishop on March 14, 2017, 12:59:56 pm

There was a recent article in Model Boats featuring the Magnus effect rotor on a yacht model. It did seem to work but I wondered if it might have been more effective with a rough surfaced rotor rather than a smooth one.

Colin

Title: Re: Just going out for a spin.
Post by: nemesis on March 15, 2017, 08:36:09 pm

I remember the Fletner Rotoship, do not know what happened to it but it was similar. nemesis

Title: Re: Just going out for a spin.
Post by: Jerry C on March 16, 2017, 02:37:11 am

I sailed on MV Ashington when she was fitted with a permanent sail. Renamed MFI. Then crude prices collapsed and idea was scrapped.
Jerry.

Title: Re: Just going out for a spin.
Post by: malcolmfrary on April 19, 2017, 08:18:22 pm

Considering the size and mass of the rotating column, my guess is that the best place to be is somewhere inland.  Definitely not on a vessel liable to rock.

Title: Re: Just going out for a spin.
Post by: david48 on April 20, 2017, 09:35:18 am

The wind turbine delevery  ship that Enercon use has four Fletner Rotors .It is called E SHIP 1. There is a You tube Video.
Sorry can not get it to link.
David   

Title: Re: Just going out for a spin.
Post by: imsinking on April 20, 2017, 09:52:22 am

There y'go . . .
https://www.youtube.com/watch?v=CODdHkbz6o0
It's in german but you get the gist of it .
Bill