You probably don't have time to wade thru the rest of this nonsense, so here's the skinny:

I intend to scratch build an ultra-light epoxyed plywood pontoon boat with a deck area of about 7 ' by 14' on 16 ' pontoons.
The craft will be powered by two 24V DC motors. The power will come from eight 12V Deep cycle marine (lead/acid) batteries that will be charged by solar panels and small vertical axis wind turbines.
The system will be split into two separate, isolated units
with one motor, two pairs of batteries, 2 wind turbines and solar array for each side.

The craft itself is still on the drawing board, there's some details left to work out but they're minor.
The current design displaces over 2200 pounds with only a 12" draught.

The plan is to take this boat from as far up the Mississippi as she can navigate down to New Orleans,
relying only on the solar and wind generated electricity she can create on board.

Saturday, October 31, 2009

Piranha Prop's and a "virtual Elvis".

The sketches for the hull and deck are essentially done.
I'm transferring images to a set of prints I can actually build from.
The belt drive is now enclosed inside the pontoon and the tail comes up from the keel at a shallower angle with a smaller transom.

I was figuring on a relatively low prop RPM with an aggressive pitch. Amazingly, this is what one of the engineers at Piranha recommended when I contacted them.

Piranha has an interesting concept.
They make hubs to fit different outboard and I/O drives and you can buy blades in sets, separately and/or individually.
If I were to whack a blade(s) or decide I want to experiment with a different pitch.
I can purchase new blades rather then a whole new prop.

Tech support there are really accommodating!
When she didn't have an answer she forwarded my inquiry to one of the engineers ...unfortunately the fact that the engineer didn't read more then the first sentence in the eMail was painfully obvious from his response. But I cant fault him, I'm sure the questions fell out side of his job description and he had real clients to deal with.

I'm definitely going with the piranha prop. When I shoot the documentary, the girls in tech support definitely get a plug...

My support team liked "scale man" so much they want to see a "virtual Elvis" as well so...

He'll be onboard the next set of sketches.

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