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Author Topic: Just going out for a spin.  (Read 588 times)

tigertiger

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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]
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The only stupid question is the one I didn't ask

Colin Bishop

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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
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nemesis

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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
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Jerry C

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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.
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