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Search took 0.00 seconds. Search: Posts Made By: beiland
Forum: Multihull Sailboats 10-08-2016, 07:39
Replies: 472
Views: 86,277
Posted By beiland
Re: Headsail Foils

I was looking for something else that this fellowed wrote,...and ran across this..


my response...
You're right Tom, that 'very thin foil' leading edge can be a real problem in the practical...
Forum: Multihull Sailboats 10-08-2016, 06:47
Replies: 472
Views: 86,277
Posted By beiland
Modern Rigging Materials

It appears as though you have considerable experiences with some of these more modern rigging materials. I have a few questions for you if you don't mind, as I am not abreast of all the advancements...
Forum: Multihull Sailboats 10-08-2016, 06:37
Replies: 472
Views: 86,277
Posted By beiland
Headsail Foils

I thought maybe that was what you were referring to. Let me lead you thru my thinking.

Originally I was familiar with Phil Bolger's 'staysail cat' rig that utilized just a single headsail on an...
Forum: Multihull Sailboats 10-08-2016, 05:41
Replies: 472
Views: 86,277
Posted By beiland
Mastfoil again

Chris White Atlantic 47, MastFoil - Page 5 - Boat Design Forums (https://www.boatdesign.net/forums/multihulls/chris-white-atlantic-47-mastfoil-40670-5.html#post765940)

Pogo, I agree with you....
Forum: Multihull Sailboats 10-08-2016, 05:22
Replies: 472
Views: 86,277
Posted By beiland
Mastfoil

Are you familiar with his early experimentation?
videos ... https://chriswhitedesigns.smugmug.com/Other/Prototype/i-HkkHg72 (https://chriswhitedesigns.smugmug.com/Other/Prototype/i-HkkHg72)
...
Forum: Multihull Sailboats 10-08-2016, 05:13
Replies: 472
Views: 86,277
Posted By beiland
Handicap Rules Designing Our Boats?

I've contented for years that the racing/handicap system has also stymied boat design innovation:
...from my website
:biggrin:
Forum: Multihull Sailboats 10-08-2016, 05:00
Replies: 472
Views: 86,277
Posted By beiland
Re: Wind Tunnel And CFD Investigation Of Unconventional Rigs

You are correct, it is a real uphill battle to get new rig ides acepted :danger:

I keep chipping away at it as I do not have the funds to build it full size. So I keep an eye out for technologies...
Forum: Multihull Sailboats 10-08-2016, 04:51
Replies: 472
Views: 86,277
Posted By beiland
Re: Catamarans in 50kt winds

Is that a Gemini cat, as the ones that are built in Annapolis MD?
I knew Tony Smith and his wife quite well when I worked out of that area.
Forum: Multihull Sailboats 09-08-2016, 17:02
Replies: 472
Views: 86,277
Posted By beiland
Wind Tunnel And CFD Investigation Of Unconventional Rigs

Another link to the test on those 'unconventional rigs'
https://www.researchgate.net/publication/262797205_Wind_tunnel_and_CFD_investigation_of_unconventional_rigs

129278
The point I am trying...
Forum: Multihull Sailboats 09-08-2016, 16:04
Replies: 472
Views: 86,277
Posted By beiland
Big Storm Adventure (years ago)

https://www.youtube.com/watch?v=CG5SouF96TQ


I was in a storm like that for 2 days. Left out of the Chesapeake Bay on Christmas Eve headed for the Virgins. Knew there was a good size frontal...
Forum: Multihull Sailboats 09-08-2016, 05:51
Replies: 472
Views: 86,277
Posted By beiland
Cats in BIG waves

There was a study done by Lock Crowther years ago at the Southampton Univ test tank....

Note: reference source, Lock Crowther Designs

"This work (tank testing at Southampton Univ) has...
Forum: Multihull Sailboats 08-08-2016, 16:27
Replies: 472
Views: 86,277
Posted By beiland
Re: Catamarans in 50kt winds

Originally Posted by Brian Hancock
Most offshore passage making is reaching with the wind on your beam or slightly aft. The best rig for this is a cutter or some other double headsail rig where...
Forum: Multihull Sailboats 08-08-2016, 16:24
Replies: 472
Views: 86,277
Posted By beiland
Roller Furling Genoa

Roller Furling Genoa
Over the years there has been many naysayers expressing reservations about roller REEFING sails.

I just ran across a few little discussions/references to roller furling...
Forum: Multihull Sailboats 08-08-2016, 12:20
Replies: 472
Views: 86,277
Posted By beiland
another case for Mainsail-less

...just looking back thru this subject thread...https://www.cruisersforum.com/images/smilies/whistling.gif
Forum: Multihull Sailboats 08-08-2016, 08:50
Replies: 472
Views: 86,277
Posted By beiland
Re: Catamarans in 50kt winds

By the way that 'big genoa' of mine is only 105%.

And nobody said the sails needed to be this big.

Have a look at these Wind Tunnel Test, & photos of headsail rigs tested....
Wind Tunnel And...
Forum: Multihull Sailboats 08-08-2016, 08:33
Replies: 472
Views: 86,277
Posted By beiland
Re: Catamarans in 50kt winds

How about this cruising rig?....low aspect, but decent size sail area
Mainless Rig, all roller furling, reefing
https://www.cruisersforum.com/forums/f48/dont-use-the-main-115978-4.html#post1848613
...
Forum: Multihull Sailboats 07-08-2016, 09:22
Replies: 472
Views: 86,277
Posted By beiland
Re: Catamarans in 50kt winds

I agree with you Bulawayo, photos of rough seas are hard to capture the intensity and size. I looked at that video under discussion and that size of a sea did NOT result from a 20 knot wind,...rather...
Forum: Multihull Sailboats 03-08-2016, 09:17
Replies: 472
Views: 86,277
Posted By beiland
Sea Anchor

Agreed.


I'm always amazed at the number of folks who want to run downwind for long periods of time,...and NOT utilize a parachute sea anchor off the bow.
...
Forum: Multihull Sailboats 02-08-2016, 06:19
Replies: 472
Views: 86,277
Posted By beiland
Re: Catamarans in 50kt winds

Just another reason that I would go mainless, mainsail-less, no mainsail

Perhaps google those three terms?
Showing results 1 to 19 of 19

 
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