On Sun, 21 Jun 2009 09:23:53 -0700 (PDT), Katie Ohara
wrote:

On Jun 21, 12:21*pm, Katie Ohara wrote:
On Jun 21, 12:03*pm, Zombie of Woodstock wrote:

On Sun, 21 Jun 2009 08:34:43 -0700 (PDT), Katie Ohara

wrote:
This particular boat had 5 blades. *They were made of Kevlar and were
individually bolted to a flange on the shaft, a complicated
arrangement.

Kevlar...you mean like helicopter blades?

Cool - any chance you *know the name of the manufacturer?

Sorry, I was not that interested although the boat said Seminole on
the side and he mentioned to someone else that it was made in
Bainbridge, GA

Oh, and a younger passenger of his was talking very knowledgeably (at
least sounded like it) about helicopter blades and silencing them.
What was also striking was how polite these guys were compared to the
normal airboater.

Makes some sense - there's all kinds of new technology with chopper
blades and different composite materials. I dont' know a whole lot
about it but I did finally solo and got my license for one.

Maybe I need to look into that.

I've got this idea.... :)

On Jun 21, 2:33*pm, Zombie of Woodstock wrote:
On Sun, 21 Jun 2009 09:23:53 -0700 (PDT), Katie Ohara





wrote:
On Jun 21, 12:21*pm, Katie Ohara wrote:
On Jun 21, 12:03*pm, Zombie of Woodstock wrote:

On Sun, 21 Jun 2009 08:34:43 -0700 (PDT), Katie Ohara

wrote:
This particular boat had 5 blades. *They were made of Kevlar and were
individually bolted to a flange on the shaft, a complicated
arrangement.

Kevlar...you mean like helicopter blades?

Cool - any chance you *know the name of the manufacturer?

Sorry, I was not that interested although the boat said Seminole on
the side and he mentioned to someone else that it was made in
Bainbridge, GA

Oh, and a younger passenger of his was talking very knowledgeably (at
least sounded like it) about helicopter blades and silencing them.
What was also striking was how polite these guys were compared to the
normal airboater.

Makes some sense - there's all kinds of new technology with chopper
blades and different composite materials. I dont' know a whole lot
about it but I did finally solo and got my license for one.

Maybe I need to look into that.

I've got this idea.... *:)- Hide quoted text -

- Show quoted text -

I know that on a hovercraft, a duct around the thrust fan, in a
certain shape and close tolerances to the prop really helps the
thrust.

On Mon, 22 Jun 2009 06:12:55 -0700 (PDT), Loogypicker
wrote:

I know that on a hovercraft, a duct around the thrust fan, in a
certain shape and close tolerances to the prop really helps the
thrust.

All the lifeboats on the cruise ships have had steerable shrouds,
called Kort Nozzles. The tenders, with identical hulls, have a
conventional rudder. They have bigger engines and are faster, and also
have radar on a retractable mast. Nozzles have high drag and cut top
speed, but offer more manuverability at low speeds. They are found on
some tugs.

Casady