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Old 02-01-2008, 08:03   #16
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Originally Posted by 44'cruisingcat View Post
2Hulls was talking about spinnaker poles. Cats don't need them.
Correct. My prior statement, "Why would anyone with a cat want to mess with such a contraption?" was referring to spi poles. Potential cat owners or spi buyers: do not let ANYBODY convince you that you need a spi pole. Bow sprit, maybe, for an asymetrical chute.

As for the kite, it looks interesting. But I'll choose to watch and see if the pros overtake any cons before seeking my own better mouse trap.

Dave
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Old 02-01-2008, 10:23   #17
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I have tried to contact Kiteship several times thru E mail but no result so maybe they are sailing !!! With the New FastCat 460 Green Motion with retractable electric motors I want to do 2 Ocean Crossings First from Cape Town to Miami and after that From Miami Via the Azores to Western Europe as a test for this New all electric and fossil free propulsion system and including a kite in this test sounds Ideal to me, If we are going to fast we just lower the electric propulsion and with the 2 props of 19 x 19 that should slow us down plenty and at the same time generate up to 8 Kw to keep everything else going, this endurance and practice test will last 20.000 NM and if this last test is succesful we will go into Production with this new system.
These units will be installed on the new Fastcat 405 , 460 and 560 .
Once this test is completed I will write a report on my findings regarding regeneration , slowing down of the boat during generation, charging capability,s and with what speed the amount of charge, Manuvering i n the harbour , speed under power , range from the batteries alone.
Besides the 2 Motogens of 10 Kw each we will also install one new Air breeze wind generator in the masttop, and 4 sanyo solar panles of 210 watt each on the bimini top.
For emergency use we will have 2 diesel generator on board one of 11 Kw and the other of 13 Kw that together can propel the boat at 9,5 knots or with just the 11 Kw unit at 7.5 knots
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Old 02-01-2008, 13:47   #18
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For the doubters out there, go down to the surf and watch .... the new kite surfer rigs. The guys with the kites go FAAAAAAST!!!! seer
Yes, I've seen them and yes they are very fast. But my point is one of controll. I don't know if I like the idea of being out of control.

how out of control?:
Freak wind killed kite surfer




A kite surfer died after he was dragged head first into a concrete wall by a freak gust of wind, an inquest has heard.

From BBC News Linked Here

Anyway, as someone said, new things get critisized before they are proven...



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Old 02-01-2008, 13:58   #19
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I do not think it is wise to fly a kite on any boat or even with a surfboard near any wall, A kite is a long distance sail used if you intend to use it for over an hour up to many days. When leaving St Helena 2 years ago we had our spinnaker up for almost 21 days and that was a good sail with average speeds of 11 knots and I inted to improve on that with a kite,
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Old 02-01-2008, 14:03   #20
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Kind of off topic, but in regards to the guy above who wasn't wearing his helmet:

I used to race bicycles (road and mountain), and one of the things that stuck in my head that my coach told me was that a person, not moving forward or backward, who simply tips over on a bicycle, will have their head hit the ground at around 22mph.

Adding *any* forward or backward velocity to that greatly increases the impact force, but 22mph is pretty damn fast to have your head meet pavement.

Wear a helmet when you ride your bicycles folks. Whenever I see someone riding without one, I know they haven't ridden much.
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Old 02-01-2008, 14:13   #21
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A kite is a long distance sail used if you intend to use it for over an hour up to many days.
Yes, I understand your point about that and the trip you have planned would be marvelous for it
but that is a fair added expense to the sail wardrobe for those that do a passage once per year and gunkhole the rest of the time.

All the best with it Take lots of piccs for us and tell us your sustained speed over 20 or 25 days!

Mark
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Old 02-01-2008, 15:35   #22
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I don't think Fastcat is planning on leaving the kite with the boat upon delivery completion. It sounds like a transport sail, keep the new customer sails crispy and re-use the kite over and over again. Makes sense to me.

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Yes, I understand your point about that and the trip you have planned would be marvelous for it
but that is a fair added expense to the sail wardrobe for those that do a passage once per year and gunkhole the rest of the time.

All the best with it Take lots of piccs for us and tell us your sustained speed over 20 or 25 days!

Mark
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Old 03-01-2008, 23:11   #23
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Yes Joli , that is the general idea just use the kite over and over again for fast delivery trips to the states or Europe and with the gained experience we might later on bring them into our ocean crossing package on all the cats we build.
I am even considering to use one on a new build powercat to be shipped to florida
Sounds like an interesting concept.
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Old 04-01-2008, 04:26   #24
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Very creative, a kite for the power cat saves not only fuel costs but wear and tear on the engines.

Please share your thoughts and opinions with us afterwords.

Fair winds,
Joli
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Old 04-01-2008, 10:42   #25
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video of skysail in action

http://s2.streamingfarm.tv/streaming...ung02_768k.wmv
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Old 04-01-2008, 11:19   #26
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Thank you very much nice videon I will contact them and see what they can do for us

Have a good weekend and a good year
Gideon
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Old 04-01-2008, 11:46   #27
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Your welcome.

If I was in the boat building buisiness, I would be looking into it.
I want one, but very expensive.

Here is a link explaining the technology:

http://www.skysails.info/fileadmin/u...nformation.pdf
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Old 04-01-2008, 15:29   #28
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Your welcome.

If I was in the boat building buisiness, I would be looking into it.
I want one, but very expensive.

Here is a link explaining the technology:

http://www.skysails.info/fileadmin/u...nformation.pdf
Looking at the video it seem like the guy that is doing it on a smaller scale in Hawaii, that is, the sail is not just flown and set, it is actually actively flown back and forth and up and down.

Is this just how it appears on the "movies" or is it necessary for it to be continually "flown?"

If so then that is why the minimal interface with systems is a long list.

Very cool.
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Old 04-01-2008, 20:56   #29
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Wow...incredible.....on a MUCH smaller scale, does anyone have experience flying a 2 string sport kite off a boat? I have had one for 10 years or so that has about a 100' tubular tail...lots of fun to fly on a beach over the water...have to be careful to not dip too low and get it wet, but the kite will fly with no tail on it at all...just more squirlly...I've always wondered about flying it off the stern of a sailboat sailing to weather..would it work? Launching it would be the first issue me thinks.
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Old 05-01-2008, 13:11   #30
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Kite For Sail - advanced wind propulsion technology

Maui Kite Sailing kiteforsail.com - AOL Video

Dave Culp Speedsailing
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