Hawia 5-0

[Dirteater]

I do ask for some forgivness for asking this question

On the old Hawia 5-0 (you know the one with Mcgarrett and "Danno".)
the opening showed Canoe's with "pontoons" extended to one side of
the boat held in place by 2 extensions.

Is there a proper name for this style of boat?
and is there a proper name for the "pontoon"

[Doug Lord]

The boat type is a proa, the pontoon is an "ama" or outside hull. I don't really use all the "proper" names just the ones that seem appropriate in my experience.
Why, just out of curiosity?

[Dirteater]

Once again Doug my thanks

yes, curiousity for the most part.
I think it's an interesting application on a boat.
I want to learn more about the purpose of the "ama".
I honestly don't know what there exact purpose/application is for.
I do believe this design is used in several countries.
I like thier design.

by the way, I was reviewing your gallery today.
very interesting designs there as well.
It makes me want to build model prototypes out of balsa and
such. great gallery.

[Dirteater]

and obviously there a style of boat I remember from my childhood on tv.

[Doug Lord]

Originally Posted by Dirteater

Once again Doug my thanks

yes, curiousity for the most part.
I think it's an interesting application on a boat.
I want to learn more about the purpose of the "ama".
I honestly don't know what there exact purpose/application is for.
I do believe this design is used in several countries.
I like thier design.

by the way, I was reviewing your gallery today.
very interesting designs there as well.
It makes me want to build model prototypes out of balsa and
such. great gallery.

===============
Thanks! Google "proa"-there is tons of info out there. Basically, any ama is there for stability but there's all kinds of theories on how big it should be ,how far from the main hull etc,etc..

[Dirteater]

more hours of enjoyable reading!
yapee!

[hoytedow]

The crossbeam supports connecting the amas to the hull are called akas.

http://en.wikipedia.org/wiki/Proa

The main hull is called the vaka.

[ProaSailor]

Originally Posted by Dirteater

I do ask for some forgivness for asking this question

On the old Hawia 5-0 (you know the one with Mcgarrett and "Danno".)
the opening showed Canoe's with "pontoons" extended to one side of
the boat held in place by 2 extensions.

Is there a proper name for this style of boat?
and is there a proper name for the "pontoon"

It is an outrigger canoe, not a proa (sorry Doug); as explained in the wikipedia link on proas:

While the word perahu and proa are generic terms meaning boat [in] their native language, proa in Western languages has come to describe a vessel consisting of two (usually) unequal length parallel hulls. It is sailed so that one hull is kept to windward, and the other to leeward, so that it needs "shunt" to reverse direction when tacking.

Some have said that proa just means boat and mistakenly applied the term to one-way craft of all sorts, even "power proas" with no sails, ignoring the fact that in Micronesia, where proas originated, all "boats" were sailing proas! And they shunt to always keep the same hull to windward.

Gary Dierking has probably developed the modern outrigger canoe more than anyone:



The float is called an "ama", the main hull is the "vaka" and the crossbeams are called "akas" or "‘Iako" (Hawaiian).

[Doug Lord]

Originally Posted by ProaSailor

It is an outrigger canoe, not a proa (sorry Doug); as explained in the wikipedia link on proas:

========================
Thanks for the enlightenment- but I think this stuff sometimes goes to far-but I appreciate learning the correct identification.

from wikipedia:
" Traditional proas superficially resemble outrigger canoes, but have a buoyant lee hull and a denser, ballasted hull to windward for stability."

more on outrigger canoes: http://en.wikipedia.org/wiki/Outrigger_canoe

[Dirteater]

Originally Posted by Doug Lord

The boat type is a proa, the pontoon is an "ama" or outside hull. I don't really use all the "proper" names just the ones that seem appropriate in my experience.
Why, just out of curiosity?

I chose the multi-hull thread as I thought this style of boat (now understood as an "outrigger canoe") would fall under this heading and I believe it does. If it doesn't please do not hesitate to correct me.

I am enjoying learning about boats at this stage in my life.
I've received nothing but expert advise on this forum. And I'm sure many times when a junior member poses a question you wonder where they are really going with this. ie: Doug Lord's question to me. So..., in do respect...

Multi-hull
I get to thinking that almost every boat can benefit from this application.
ok, not speed boats, day cruisers etc. I'm wondering why there aren't more of them? or why is this not an "optioinal" application. Originally... I was thinking the "ama" was for stability when weight was added, ie: A big Shark. ,. and then there the stability application of the "ama".

ProaSailor opened the other door.
"ignoring the fact that in Micronesia, where proas originated, all "boats" were sailing proas!"
Also I can see a sailor standing up in his outrigger canoe, with a paddle out the back, as if he is going through the canals of Venice.

I guess the bottom line is... " It's the application of Multi-hulls on boats?" that has caught my attention. An enormous question I know *L*
Still, it is one that fascinates my mind, (kind of a bee in my bonet). The last time this happened I built something *LOL*
I thank you.

DE

p.s. I only wish I had started 25 years ago

[ProaSailor]

Originally Posted by Dirteater

Multi-hull
I get to thinking that almost every boat can benefit from this application.
ok, not speed boats, day cruisers etc. I'm wondering why there aren't more of them?

Heh, heh... Multihulls are found in many applications including top fuel dragsters, military ships, huge car ferries, racing and cruising sail boats:





One place to start is http://www.outrig.org

Here is a really great Sports Illustrated article from 1960 that discusses a lot of Woody Brown's history building catamarans with Rudy Choy and stalking the 1955 Transpac fleet.

The Cats Squelch The Catcalls
http://sportsillustrated.cnn.com/vau...ne/MAG1071382/

video: "woody brown and his catamarans from the pbs hawaii special wind and waves"
http://www.youtube.com/watch?v=7JEOwbyWr7Y

Oh, and it was BMW Oracle's trimaran that won the America's Cup last year, bringing the next contest to San Francisco in 2013:



You have a bit of catching up to do! Cheers

[Dirteater]

^%&##!!#!! woody brown! (for one (1)) amazing!
moving on to (2)...

thanks proa.

[peterchech]

Multihulls are lots of fun, especially on the smaller end. I built one of Gary Dierking's outrigger canoes, and it has been the most fun I've had on the water. Not as fast as a beachcat, but much more fun once you get it going IMHO. And hey, it will outsail my Hunter 25 monohull any day, despite costing me only about $1200 to build.

This winter I plan on doing some mods to try this shunting thing that so many proafiles insist upon. Can't wait.

just for kicks dirteater, youtube "Pjoa", and youtube "prao petrel". These are a couple beach sized proas that use traditional rigs. You might want to youtube "proa madness" too, a modern approach to the cruising pacific proa.

[upchurchmr]

Gentlemen,

Lets not get stuck on the perfection of Wikipedia.

What would you call the "Atlantic" proa, Cheers, designed by Dick Newick. It shunts, but the hulls are equal length, the small one is not heavy (instead it is bouyant), and it really kicked ass in the 1968 OSTAR.

Is there anyone besides Wikipedia suggesting it wasn't really a Proa?
http://www.wingo.com/newick/

Marc

[Dirteater]

I'm leaning to wiki,
to me its probably the length of the ama,
it almost seems like two hulls rather than a smaller outrigger.
tuff call really. (at least for me anyway )