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Foiling on A-class "banana" board #214914
06/29/10 12:16 PM
06/29/10 12:16 PM
Joined: Jul 2001
Posts: 256
North Europe, Sweden, Uppsala
Hakan Frojdh Offline OP
enthusiast
Hakan Frojdh  Offline OP
enthusiast

Joined: Jul 2001
Posts: 256
North Europe, Sweden, Uppsala
Sailing the latest Marstrom A-class with banana center boards and gennaker can be quite a ride! Normal sailing level is with the lee bow just touching the water, but if you stand a bit too far back it will quickly take off with the bow in the air. It will slow the boat down so to go fast this is not the way!
Without gennaker you can get the boat to fly a bit on the center boards in waves but it's a bit more tricky.

[Linked Image]
The "flying" sequency of around 6 seconds.

[Linked Image]
Close up of the boat during "flying"

All pictures in higher res can be found here:
High res pictures

/hakan

Last edited by Hakan Frojdh; 06/29/10 12:19 PM.
-- Have You Seen This? --
Re: Foiling on A-class "banana" board [Re: Hakan Frojdh] #214919
06/29/10 01:19 PM
06/29/10 01:19 PM
Joined: Feb 2009
Posts: 678
Palm Beach County
TheManShed Offline
addict
TheManShed  Offline
addict

Joined: Feb 2009
Posts: 678
Palm Beach County
Looks like you are ready for take-off.
Many years ago I was sailing a Portsmith run for G-Cat in Tampa Bay. A nasty overnight squall came through the beach that damaged a few boats. Boats were hung on the fence not a pretty sight. I had a chance to sail with Randy and the owner Herb on a SuperCat 20 tall rig after we bent the mast back in shape from getting piled into the sand from the storm. We came behind a Maxi Yacht with a very large head sail - right up in the slot and the Super Cat leaped right out of the water at about the same angle and went airborne. The flight time was not very long and it headed back into the water at about the same angle now bow first. We managed to hold onto it. I was running the main sheet and got rope burns through my gloves, Randy was” hanging ten” off the rudder housing taking a picture, and Herb resembled a trolling lure. Who said sailing is not like flying?


Mike Shappell
www.themanshed.com
TMS-20 Builder
G-Cat 5.7 - Current Boat
NACRA 5.2 - early 70's

Re: Foiling on A-class "banana" board [Re: TheManShed] #214921
06/29/10 01:33 PM
06/29/10 01:33 PM
Joined: Feb 2005
Posts: 4,119
Northfield Mn
Karl_Brogger Offline
Carpal Tunnel
Karl_Brogger  Offline
Carpal Tunnel

Joined: Feb 2005
Posts: 4,119
Northfield Mn
Fast or not, still looks fun to do.


I'm boatless.
Re: Foiling on A-class "banana" board [Re: Karl_Brogger] #214930
06/29/10 03:21 PM
06/29/10 03:21 PM
Joined: Apr 2002
Posts: 695
Ft. Pierce, Fl. USA
Seeker Offline
addict
Seeker  Offline
addict

Joined: Apr 2002
Posts: 695
Ft. Pierce, Fl. USA
Next thing you know they will be moving the daggerboards in front of the main beam and putting banana rudders on to get the whole boat flying...yes you heard it here first...banana rudders...talk about some spectacular wipe outs...it will take pitch poles to a "whole nother level" when they loose dynamic lift at the daggerboards and the rudders keep lifting...LOL...

Re: Foiling on A-class "banana" board [Re: Seeker] #214936
06/29/10 05:18 PM
06/29/10 05:18 PM
Joined: Feb 2004
Posts: 3,528
Looking for a Job, I got credi...
scooby_simon Offline
Hull Flying, Snow Sliding....
scooby_simon  Offline
Hull Flying, Snow Sliding....
Carpal Tunnel

Joined: Feb 2004
Posts: 3,528
Looking for a Job, I got credi...
Excellent.


F16 - GBR 553 - SOLD

I also talk sport here
Re: Foiling on A-class "banana" board [Re: Seeker] #214948
06/29/10 07:42 PM
06/29/10 07:42 PM
Joined: Dec 2003
Posts: 1,066
Wellington, FL-Singer Island, ...
cyberspeed Offline
old hand
cyberspeed  Offline
old hand

Joined: Dec 2003
Posts: 1,066
Wellington, FL-Singer Island, ...
Originally Posted by Seeker
Next thing you know they will be moving the daggerboards in front of the main beam and putting banana rudders on to get the whole boat flying...yes you heard it here first...banana rudders...talk about some spectacular wipe outs...it will take pitch poles to a "whole nother level" when they loose dynamic lift at the daggerboards and the rudders keep lifting...LOL...


Just put them on Arbo's ARC21, it already hasthe daggerboard wells in front of the main beam.


craig van eaton
Supercat 20
TEAM CYBERSPEED
www.TeamCyberspeed.com
Endurance Series
www.SailSeries.com
Re: Foiling on A-class "banana" board [Re: cyberspeed] #214962
06/30/10 12:40 AM
06/30/10 12:40 AM
Joined: Apr 2002
Posts: 695
Ft. Pierce, Fl. USA
Seeker Offline
addict
Seeker  Offline
addict

Joined: Apr 2002
Posts: 695
Ft. Pierce, Fl. USA
"Just put them on Arbo's ARC21, it already hasthe daggerboard wells in front of the main beam."

That would ratchet Bill Roberts "Shared Lift" concept up a few notches. Pictures...Pictures..

Re: Foiling on A-class "banana" board [Re: Seeker] #214983
06/30/10 07:03 AM
06/30/10 07:03 AM
Joined: Jan 2005
Posts: 6,049
Sebring, Florida.
Timbo Offline
Carpal Tunnel
Timbo  Offline
Carpal Tunnel

Joined: Jan 2005
Posts: 6,049
Sebring, Florida.
What they really need to do is steal a couple Moth T foil rudders whith the variable pitch controls!

Going UP!

The scarry part would be "Sticking the Landing"!


Blade F16
#777

Moderated by  Damon Linkous 

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