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Hobie 21 SE Hull Lines - volume
http://www.hobie.com/forums/viewtopic.php?f=45&t=28525		 Page 1 of 1
Author:  Peregrine [ Wed Jul 28, 2010 4:35 pm ]
Post subject:  Hobie 21 SE Hull Lines - volume
Looking for information on the hull shape, lines plan, 3D model, offsets...

Any information would be helpful. At a min, I need to know the full hull volume.

Does anyone have access to this information.

Thanks and have a Hobie Day
Author:  gary eudy [ Sun Aug 01, 2010 2:42 pm ]
Post subject:  Re: Hobie 21 SE Hull Lines - volume
fill the hulls with water and measure the weight or gallons that empty out .this is easily converted to a volume measurement don't forget to multiply the results by 2 for the entire boat volume. Is your thought to get displacement this is even easier it is the boat weight.

I think your question should have been how many people will the 21 hold and still be fun to sail
I have carried 6 adults and a few kids and the boat still sailed great.
Much better than a 14 with 2 or a 16 with 4 or even a 18 with 4 on board

As for lines a CADD computer and measurments in cross section fo every 1' of lenght would probably work.

The first comment was not to be taken seriously that much weight would probably damage the boat :lol:
Author:  Bill 404 [ Sun Aug 01, 2010 2:51 pm ]
Post subject:  Re: Hobie 21 SE Hull Lines - volume
We took our 21SE out on a night sail with a total of 19 people on board(mostly small kids) and had a great time watching the 4th of July fire works and swimming.It was a lot of fun....Bill 404 21SE
Author:  Peregrine [ Mon Aug 02, 2010 3:59 pm ]
Post subject:  Re: Hobie 21 SE Hull Lines - volume
Thanks for the input, however I am looking into designing trimaran using the H21 SE hulls and rig. The volume of the hulls is helpful in developing the rest of the design, or knowing what my reserve buoyancy will be/power to carry sail etc.

I just may have to measure and model up the hulls to calculate this, just thought someone would have the original design on hand.

Cheers & have a Hobie day
Author:  mmiller [ Mon Aug 02, 2010 4:17 pm ]
Post subject:  Re: Hobie 21 SE Hull Lines - volume
The original drawings do not include any width / height dimensions at segments on the hull.

Boats in the day were typically designed like surfboards. Hand shaped.
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