UK-Cherub Forum

Cherub Chat => Tech Chat => Topic started by: Stuberry on January 14, 2009, 12:39:07 PM

Title: The future of spinnakers?
Post by: Stuberry on January 14, 2009, 12:39:07 PM: (http://www.parasailor.co.za/dyn_images/id_3_t_photo_gallery.jpg)(http://www.parasailor.co.za/dyn_documents/image001_animated.gif)

Further info here (http://www.parasailor.co.za/)
Title: Re: The future of spinnakers?
Post by: peter_barton on January 14, 2009, 01:09:59 PM: but we would spend so long trying to work out how to measure it we would never get to the bar!
Title: Re: The future of spinnakers?
Post by: daryl_wilkinson on January 14, 2009, 04:16:41 PM: interesting. For us it would work much better in a conventional pole to mast-head hoist. A parafoil on end. Two skins held together with baffles and gauze at the leading edge. I suppose it would be half the actual area in size ( 10.5 sqm ) as it would be essentially two spinnakers. Ummmm....
Title: Re: The future of spinnakers?
Post by: Tom K on January 14, 2009, 07:35:16 PM: Quote from: peter_barton on January 14, 2009, 01:09:59 PM
but we would spend so long trying to work out how to measure it we would never get to the bar!

I agree!
Title: Re: The future of spinnakers?
Post by: JimC on January 14, 2009, 07:58:11 PM: Strange... Think about tip loss and aspect ratio chaps:-)
Title: Re: The future of spinnakers?
Post by: tim_unerman on January 14, 2009, 08:06:10 PM: Quote from: Tom K on January 14, 2009, 07:35:16 PM
Quote from: peter_barton on January 14, 2009, 01:09:59 PM
but we would spend so long trying to work out how to measure it we would never get to the bar!

I agree!

Well Tom its simple, we will have to get you one of these to play with:
http://www.metris.com/products/laser_scanners/lc50/
Title: Re: The future of spinnakers?
Post by: Tom K on January 14, 2009, 08:49:45 PM: Quote from: tim_unerman on January 14, 2009, 08:06:10 PM
Quote from: Tom K on January 14, 2009, 07:35:16 PM
Quote from: peter_barton on January 14, 2009, 01:09:59 PM
but we would spend so long trying to work out how to measure it we would never get to the bar!

I agree!

Well Tom its simple, we will have to get you one of these to play with:
http://www.metris.com/products/laser_scanners/lc50/

I agree!
Title: Re: The future of spinnakers?
Post by: phil_kirk on January 15, 2009, 03:35:05 PM: I saw one of these on a HOD 35 yacht 2.5 years ago. Appeared to work.
If as intended it gives greater lift forward you would never have to worry about letting off the T foil at the windward mark. I'm not sure how it would work in an asymmetric though.

it's good to see above that Tom is being very agreeable to day. :)
Title: Re: The future of spinnakers?
Post by: gav_sims on January 15, 2009, 06:12:20 PM: How do you gybe the flap part when on an asymmetric?
Title: Re: The future of spinnakers?
Post by: peter_barton on January 15, 2009, 06:50:39 PM: So lift at both ends. Hulls fully airbourne?
Title: Re: The future of spinnakers?
Post by: JimC on January 15, 2009, 07:55:22 PM: Quote from: peter_barton on January 15, 2009, 06:50:39 PM
So lift at both ends. Hulls fully airbourne?
That bit's easy. Its the coming down again that's troublesome. Trust me on this.