Anybody out there!

growjd8888
Posts: 69
Joined: 03/11/2009, 14:22

Re: Anybody out there!

Postby growjd8888 » 10/03/2010, 13:28

hey matt, its jeff.. I was wondering if you use single panel sails or if they're paneled? And I was wondering if you know where I can get information on building a airfoiled mast?

User avatar
matthias72
Posts: 1752
Joined: 04/07/2008, 16:33
Location: ROMA

Re: Anybody out there!

Postby matthias72 » 10/03/2010, 14:21

If I understod, you mean how many parts my sails are built, and the answer is 4, with airfoil 8%.
To make a airfoiled mainmast I suggest to use two carbon tubes 10mm front and 4mm tail, light wood in the center as balsa, and 2 layers of carbon around all.
Final weight for two meters less than 170g is your goal.

Regards

Matth
--------------------------------------
THE LIFE IS SHORT: SAIL HARD!
--------------------------------------

growjd8888
Posts: 69
Joined: 03/11/2009, 14:22

Re: Anybody out there!

Postby growjd8888 » 15/03/2010, 1:25

awesome! thanks..

Any recommended websites for buying pultruded carbon rod?
much appreciated, jeff

User avatar
matthias72
Posts: 1752
Joined: 04/07/2008, 16:33
Location: ROMA

Re: Anybody out there!

Postby matthias72 » 15/03/2010, 10:28

Jeff what is it?
--------------------------------------
THE LIFE IS SHORT: SAIL HARD!
--------------------------------------

growjd8888
Posts: 69
Joined: 03/11/2009, 14:22

Re: Anybody out there!

Postby growjd8888 » 05/11/2010, 3:03

Some work I've been doing. I have added a flange to my hull mold, and made my first deck mold which I will pull off the plug tomorrow.
Attachments
plug8 011.JPG
Deck Plug
plug8 012.JPG
Wood reinforcements due to the fact that this deck mold is mostly a flat panel
plug8 013.JPG
plug8 017.JPG
hull mold
plug8 020.JPG
Hull Mold next to plug

growjd8888
Posts: 69
Joined: 03/11/2009, 14:22

Re: Anybody out there!

Postby growjd8888 » 05/11/2010, 3:08

Few more
Attachments
plug8 021.JPG
plug8 022.JPG
plug8 024.JPG
HHMMM.... What could this be for~!!????
plug8 025.JPG
Guage manifold for reading Atmospheric pressure
plug8 016.JPG
New Design for bulb....currently 3175g

User avatar
matthias72
Posts: 1752
Joined: 04/07/2008, 16:33
Location: ROMA

Re: Anybody out there!

Postby matthias72 » 05/11/2010, 9:38

Jeff, you are working very as a professional boatmaker!
Good work really! Interesting the bulb shape, I'm curious of your next experiences in water using it.

Cheers
Matth
--------------------------------------
THE LIFE IS SHORT: SAIL HARD!
--------------------------------------

growjd8888
Posts: 69
Joined: 03/11/2009, 14:22

Re: Anybody out there!

Postby growjd8888 » 08/11/2010, 0:21

First pull with the Robinair 15600 1/2hp 6cfm pump....pressure is holding at 24Hg
Attachments
vac1.jpg
vac2.jpg
vac3.jpg

growjd8888
Posts: 69
Joined: 03/11/2009, 14:22

Re: Anybody out there!

Postby growjd8888 » 08/11/2010, 0:23

I had to use a lot of sealant where my hose entered the bag...I think i will invest in the quick connect coupler with rubber gasket for the seal, was too much trouble using only a hose to enter bag.

User avatar
matthias72
Posts: 1752
Joined: 04/07/2008, 16:33
Location: ROMA

Re: Anybody out there!

Postby matthias72 » 08/11/2010, 0:50

Interesting.
Could you tell us the final hull weight difference using the underpressure and without?
--------------------------------------
THE LIFE IS SHORT: SAIL HARD!
--------------------------------------


Return to “Skippers”

Who is online

Users browsing this forum: No registered users and 1 guest