Rick Willoughby | 16 Aug 01:19

re:Hpv-boat Archived files

Bruce
Been a long time since you posted here.  Any submarine developments?

Did you ever make your test boat?

You might care to go to this link and provide an opinion:
http://www.boatdesign.net/forums/showthread.php?p=221464#post221464

Rick Willoughby

Rick Willoughby | 9 Aug 15:56

V11J

I posted some pictures of my latest variant of the V11 hull on the  
bottom of this page:
http://www.boatdesign.net/forums/showthread.php?t=23345&page=6
The boat hull is made with glass/epoxy on 3mm Klegecell foam using  
the old hull as a male plug.  Total weight is 23kg.  It has twin  
"dipping" rudders that I am pleased with.

Rick Willoughby

Rick Willoughby | 5 Aug 23:49

(unknown)


Rick Willoughby
rickwill@...
03 9796 2415
0419 104 821

Rick Willoughby | 4 Aug 23:34

Mono vs cat (both optimized)chart?

Larry
Too many options for a chart.  Also I an update of Godzilla that  
produces very interesting monohulls that work well when operated  
below hull speed.  So I can nor produce better shape monos with a  
length constraint.  They are very odd shapes that I am trying to  
understand.

Rick Willoughby
r

bruceplazyk | 4 Aug 20:18

Hpv-boat Archived files


If anyone is interested, here is a link to a web archive server that has a lot of the early hpv-boat forum discussions:
 

http://web.archive.org/web/20050403170308/www.ihpva.org/pipermail/hpv-boats/ 

  
 It doesn't seem to have everything but there are a lot of discussions available. Also the server seems to
get bogged down occassionally but try again in a few minutes. It's a great source for finding old web pages.
Here is the link to the archive server: 
  
http://www.archive.org/index.php 
  
I also have about 2000 old posts going back to September of 2005 if someone needs specific information on a
subject. 
  
Bruce Plazyk 
 
Rick Willoughby | 4 Aug 02:10

gmane boat link

Peter
Go to this link:
feed://rss.gmane.org/messages/excerpts/ 
gmane.culture.transportation.humanpowered.boats
The old IHPVA site is no longer supported and we seem to have lost a  
lot of history.  The gmane link has some data.

I have started a pedal powered boat thread at www.boatdesign.net.  It  
is a very good site.  Just register and away you go.  You can post  
images and video on that site.  It has a huge data resource.

I have been on the journey of understanding for about 5 years now and  
am happy to pass on what I have learnt.

I have spent a lot of my life on water for recreation and some work  
but I have not had as much pleasure as I get from  my various  
pedalled craft.  I think it is a largely untapped frontier of  
development.  Hope you find it enjoyable.  You have to dare to be  
different to get satisfaction from it.  So there are no dumb ideas or  
questions.

Rick Willoughby

Rick Willoughby | 4 Aug 00:24

Efficiency & Marketability

Larry
<
I don't imagine myself, with this ramble, to be telling most members
of this group anything they don't know, ...only to be speaking out
for more consistent balance in appraisal,... for recognition and
keeping-in-mind of the fact that efficiency, as measured by
speed-for-effort, is simply one-of, not THE consideration when
judging a proposed design, ...unless the activity-scope is narrowed
to racing.
 >

I do not disagree with what you have to say.  I have both cat and  
mono.  Horses for courses.

Not sure if you read Pete's web site.  It is directed at efficiency  
in the narrower sense of speed for power.

The comment on the Rocat is based on posts from Christopher Laughton  
some time ago.  I believe it is not widely known that catamarans  
suffer a 40% power disadvantage. I also have read a race report from  
a Rocat owner that indicated he was not initially aware he would be  
giving away so much to a monohull.  His expectations were not met.

All Hobie do is prove they have high bollard pull and they have used  
this as a real selling point.  Most owners are recreational users  
just out for time on the water.  On the other hand I have seen Hobie  
owners bitterly disappointed when they have been racing against  
conventional paddled canoes.

My wife just loved Mike Lampi's Nauticraft.  She has never tried one  
(Continue reading)

Peter Howard | 2 Aug 19:48

oar+some pedal paddled cataraman

Hi All,

Oar+Some is a boat concept and design project. In essence it is a human
powered (you pedal it), catamaran designed for speed. Think of it as a top
notch, high performance touring bicycle for water.

Computer models, virtual video and discussion here:
http://peterhoward42.blogspot.com/2008/03/oarsome-virtual-photo-album.html

Regards

Pete Howard

Greg Kolodziejzyk | 23 Jul 00:45

24 hour HPB record

Hi - not sure how many of you have been following my latest progress, so I
thought I would give you a quick update for anyone interested. I hit 16 kph
(10 mph) the other day, and finished a 5 hour circuit on the lake here with
11.4 km/hr average speed (7 mph, 35 miles)

http://www.adventuresofgreg.com/HPB/uploaded_images/P7200014-728295.JPG

More pictures and a video of the 10 mph run here:
http://www.adventuresofgreg.com/HPB/2008/07/fairing-test-10-mph.html

Greg K
hpv | 19 Jul 18:49

Displacement hydrofoils

Most hydrofoil designs have relatively thin bladed foils for "flying"
mode and auxiliary floats for "floating" mode.

Does anyone know of any designs that have fatter foils that make
flying more of a cross between the two modes? If so, how is the
overall performance?

Could this be an option for a long distance hydrofoil design that
wouldn't require superhuman strength and endurance?

Michael Lampi

FreeEntTec | 17 Jul 00:53

Open Sourcery iii codes

Bob, all,

I have been working on a building for too long now and there are good and bad 
about codes. The good is that it sifts out some problems in safety , corner 
cutting, etc. Good for safety. I make sure as best as I can that I'm anal about 
quality. If the code specifies a certain structural size or insulation 
amount, I usually end up a notch or two over the spec .It is not so bad to have a 
staircase a little wider (carry up hydrofoil) or make the place a little less 
expensive to keep warm, or have the place jiggle less when you jump up and down 
on the second floor.

Also good for not having to worry about a hog farm next to your condo 
complex, a dog kennel  (constant barking) next door...

 
Bad thing is the idea of having to report to someone about all your stuff 
sounds sort of a combination of buraeucratic and dictitorial...

Oh well....

jake

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