Analysis problem: What is the LOA of an Olympic swimmer, and what percent of hull speed do they achieve?...
49833
L
lew_clayman
Aug 4, 2012 6:32 pm
 I'm pretty sure (no joke at all) that it depends upon which stroke.  Effective body length may differ because of the different postures.  Also, how do you...
49834
Edward Bachmann
edsboats
Aug 4, 2012 7:27 pm
Lew is correct saying that the LOA varies with the stroke. And that a swimmer is not a boat travelling on top of the water But if a boat with 6 feet LOA could...
49835
L
lew_clayman
Aug 4, 2012 7:42 pm
Yes, but part of that is the dive and the underwater portion, and part is the kick-turn. Since hullspeed is a surface effect, it doesn't apply underwater--- a...
49836
Peter
pvanderwaart
Aug 5, 2012 12:22 am
My thought was to try to confirm the notion by working back the other way, i.e. from performance to LOA. I had a hard time getting a good picture of a...
49837
L
lew_clayman
Aug 5, 2012 12:31 am
Can't see the link, I think you have to link to the article. hotlinking to the photo is blocked. ... Can't see the link, I think you have to link to the...
49838
Peter
pvanderwaart
Aug 5, 2012 5:01 pm
... I got it to work by copying the URL and pasting into the browser URL bar. I copied the picture to flickr, and maybe you can see it at the address below: ...
49839
L
lew_clayman
Aug 5, 2012 6:32 pm
Now that's a picture of a bow wave! Wow. ... Now that's a picture of a bow wave! Wow. From: Peter <pvanderwaart@...> To: boatdesign@yahoogroups.com Sent:...
49840
Peter
pvanderwaart
Aug 5, 2012 9:52 pm
... It's pretty typical of what you get if you go to Goggle Image and search for "freestyle swimming" and ignore the pictures of Phelps. The wave pattern is...
49841
L
lew_clayman
Aug 6, 2012 12:34 am
I looked her up in Wiki, she's 5'10 apparently. Â Given that and the fact that the head, from chin to crown, is typically between 1/6 and 1/7 of total height,...
49842
Glenn
n2scubadiving
Aug 6, 2012 3:44 pm
A number of years back I remember seeing a RIB type boat design using plastid irrigation pipe for floats and a plywood hull. It was called WYSIWYG (What You...
49843
Jay K. Jeffries
koblen
Aug 6, 2012 3:57 pm
The design and construction was originally covered in National Fisherman. R/Jay From: boatdesign@yahoogroups.com [mailto:boatdesign@yahoogroups.com] On Behalf...
49844
Peter
pvanderwaart
Aug 8, 2012 4:27 pm
Article here about illegal kicks has a lot of info, and links to info, about swimming rules, underwater swimming, etc. http://tinyurl.com/clyhlzn...
49845
Peter
pvanderwaart
Aug 8, 2012 4:32 pm
The picture caption in this article (one of the links article posted previously) actually refers to "wave speeds." http://tinyurl.com/6lp2r9...
49846
boatdesign@yahoogroup...
Aug 8, 2012 4:55 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the boatdesign group. File : /Sonotube...
49847
Paul Esterle
pesterle
Aug 8, 2012 4:58 pm
I, too, remember this design. I think it was a Ken Hankinson design although it doesn't show up in current listings of his plans. I played around with this...
49848
ben_2_go
Aug 8, 2012 8:12 pm
I assume this is a publication.Is it available online? Ben...
49849
Jay K. Jeffries
koblen
Aug 8, 2012 8:22 pm
It was a magazine that was available in magazine stores. I tried resubscribing last year but had issues with their website. R/Jay From:...
49850
L
lew_clayman
Aug 8, 2012 8:36 pm
Sports are dead. From here on out, it's a straight shot to robot-league blernsball. From: Peter <pvanderwaart@...> ... Sports are dead. From here on...
49851
Glenn
n2scubadiving
Aug 8, 2012 8:39 pm
Capt'n Pauley: Thanks for the drawing, very interesting. Glenn Bartel...
49852
timo4352
Aug 11, 2012 3:57 pm
Hello to the group. I'd first like to thank you all for sharing your knowledge, pics, etc. Without this info sharing here and on other forums I'd never be able...
49853
Zoran Pualich
motoklas
Aug 11, 2012 4:20 pm
Tim, Congratulations on work and best wishes to the end of construction. Very nice lines of the boat and your wonderful craftsmanship could be seen from posted...
49854
Peter
pvanderwaart
Aug 12, 2012 1:37 pm
... Best of luck with it. I think she'll look pretty stylish. I saw a stick-up once, probably at a Mystic Small Boat Workshop. It was bigger than yours, but I...
49855
Peter
pvanderwaart
Aug 12, 2012 2:06 pm
... I meant to look at this one more time. The article says: Wave speed = 2.9 meters/second Swimmer speed = 1.3 meters/second. 1 meter per second = 1.94 knots...
49856
timo4352
Aug 15, 2012 10:20 pm
Thanks guys. I've slowed my pace a bit as of late, and will just probably finish her over this winter. Can't rush perfection ya know. ;) Tim...
49857
Thomas
citroenman5172
Aug 16, 2012 4:03 pm
I've often wondered why more designs haven't incorporated the tow hitch, wheels and suspension into the hull, wether removable or retractable. Seems like the...
49858
Chief Redelk, Many Na...
chiefmanynat...
Aug 16, 2012 6:07 pm
Been there done that... PROBLEM... WAS.....parking at the lake AFTER the boat was put into the water.........Most of the state parks provide parking for...
49859
Peter
pvanderwaart
Aug 16, 2012 7:45 pm
Can anyone identify this boat: http://tinyurl.com/cucjs7t Peter...
49860
Bradley Davis
davisbr9
Aug 16, 2012 7:47 pm
Or, as an alternative, you could go with something like this instead: http://www.hovercraft.com/content/ http://www.hammacher.com/product/10963 ...
49861
Bradley Davis
davisbr9
Aug 16, 2012 7:47 pm
http://www.admiraldrive.com/ http://thefloattrailer.com/ http://www.sealegs.com/ There's plenty of people out there doing it. My question is... why? All that...
