Rev 1.5 Vented 2009

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Photo Cervia, Italy

Decs 1.5 vented 2009, 8 kites
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Decs 1.5 mid vented 2009, 8 kites (fabricated 2018)
Photo Cervia, Italy
The first full vent set arrived just in time for the Rougham event in 2009. We were not fully up to speed with switching spar sets at that stage and so the four wrap spars were a bit too heavy. We eventually settled on the green race spars being the best option.
The second set of mid vent kites arrived in 2018 and they have been the kite of choice before stepping up to the Revolution RSS sail which has no mesh but still has good flight characteristics.
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Jørgen visited London in July 2010 and came to Blackheath on 18th July to see the vented design in action.

Design development

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In 2008/2009 Jørgen prepared two initial designs for vented sails. We asked him to do a design with two vents which was then fabricated as a set of eight. In 2018 a variation with a single vent was fabricated, again in a set of eight.

Cervia 20th April - 1st May 2024

Wednesday 24th April, 2024

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Cervia 21st April - 1st May 2023

Monday 1st May 2023.

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Thanks to Elena Valesi for these images of the Decs flying seven mid vent kites.
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Flights of the newly made sails in the 2008/9 design.

Blackheath 5th February 2023.

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The stacked sails were reversed in order and flown 5th February 2023. This proved to be a more comfortable and stable option. Martin Linford was the flier.
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Taking my own advice the shutter speed for these images was much faster than I have been using previously, set at 1/500sec. Some images from the session were still not sharp!
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Other settings were ISO80, f/11, lens 70.0-200.0 mm f/2.8
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Blackheath 29th January 2023.

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The sails were stacked and flown 29th January 2023. Thanks to Marian Linford for these images.
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Blackheath 1st January 2023.

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All three sails flew on Blackheath 1st January 2023.
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Blackheath 4th Decamber 2022.

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The blue and red sails flew on Blackheath 4th December 2022.
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Thanks to Marian Linford for catching the two sails in the air.
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Blackheath 20th November 2022.

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Both sails flew on Blackheath 20th November 2022. Thanks to Marian Linford for the images.
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Blackheath 13th November 2022.

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The red sail flew on Blackheath 13th November 2022. Thanks to Marian Linford for the images
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Blackheath 30th October 2022.

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The yellow sail flew on Blackheath 30th October 2022.

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Shutter speed issue, too slow at 250th of a second!
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Cervia 22nd April - 1st May 2022

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Franca Perletti captured these images of the mid vent kites on 26th April.
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Cervia 2018

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Mid Vent.
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Cervia 2017

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Full Vent.
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Cervia 2016

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Full Vent

Thanks to Franca Perletti for these images.
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Page Updated June 2025 Felix Mottram