Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Just going out for a spin.  (Read 1323 times)

tigertiger

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,919
  • Location: Kunming, city of eternal springtime, SW China.
Just going out for a spin.
« 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]
Logged
The only stupid question is the one I didn't ask

Colin Bishop

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 8,915
  • Location: SW Surrey, UK
Re: Just going out for a spin.
« Reply #1 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
Logged

nemesis

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 314
  • Location: North Shields. Northumberland
Re: Just going out for a spin.
« Reply #2 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
Logged

Jerry C

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 915
  • Location: Caernarfon, North Wales.
Re: Just going out for a spin.
« Reply #3 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.

malcolmfrary

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 4,982
  • Location: Blackpool, Lancs, UK
Re: Just going out for a spin.
« Reply #4 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.
Logged
"Trying is the first step towards failure" - Homer (Simpson)

david48

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 705
  • Location: Strathdon,Aberdeenshire
Re: Just going out for a spin.
« Reply #5 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   
Logged
Two heads are better than one sheep head  as my old plant manager used to say

imsinking

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 410
  • Location: Merseyside
Re: Just going out for a spin.
« Reply #6 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
Logged
Pages: [1]   Go Up