... Which, I dunno, *I* find sarcastic, and I'll try not to respond in kind. Look, Harry has some great attributes. I'll happily point them out, and tell you...
2799
Dave Culp
dave@...
Jul 1, 2001 7:15 am
... I think you hit the nail on the head here. OK, I've done the same thing, precisely. *I* want the maximum advantage out of the boat type, and that means...
2800
David McComber
d.mccomber@...
Jul 1, 2001 6:03 pm
Does anyone have a calculator for hull drag for our high beam/length ratio boats? I have, in my hull design software, Gerritsma, Holtrop and Mennen, also Van...
2801
Dave Culp
dave@...
Jul 1, 2001 7:08 pm
... Odd, I haven't heard any discussions here recently on A versus P proas; only regarding different sorts of P proas. Then again, I'm not sure a powered proa...
2802
roy mills
rsirfj@...
Jul 1, 2001 7:14 pm
The comment in the latest Dave/Rob "exchange of ideas" that the double ended proa hull is not neccessarily inferior to the transom sterned hull, dragwise, has...
2803
Ted Lamont
tlamont@...
Jul 2, 2001 12:14 am
... Roy, i have recently pushed the skull as a platform on Electric Boats, saying that the ideal unit is a quad skull with an outboard and a single outrigger...
2804
Ted Lamont
tlamont@...
Jul 2, 2001 12:58 pm
More on oars, i was fascinated by the fact that depth of water comes into play with skulls and skullers choose a longer vessel when in deeper water than...
2805
Dave Howorth
dave.howorth@...
Jul 2, 2001 4:26 pm
... This sounds vaguely familiar; is it an air resistance thing? I believe there's a difference between having the windward hull unloaded but skimming the...
2806
roy mills
rsirfj@...
Jul 2, 2001 4:49 pm
... From: Ted Lamont <tlamont@...> To: <proa_file@yahoogroups.com> Sent: Monday, July 02, 2001 5:58 AM Subject: Re: [proa_file] Transom sterns v...
2807
roy mills
rsirfj@...
Jul 2, 2001 4:58 pm
... From: Ted Lamont <tlamont@...> To: <proa_file@yahoogroups.com> Sent: Sunday, July 01, 2001 5:13 PM Subject: Re: [proa_file] Transom sterns v...
2808
David McComber
d.mccomber@...
Jul 2, 2001 4:59 pm
Is not a proa flying its ama a P-proa? Eney way I was referring to the need for sufficient RM to carry sail. Also the concern of getting caught aback, is no...
2809
Brian Southwood
briansou@...
Jul 2, 2001 7:08 pm
Ted, There is a well known effect of water depth on wave propagation. Roughly, if the depth of the water is roughly the wave length, the wave "feels" the...
2810
erik
erikw@...
Jul 3, 2001 5:43 am
Hi, I've been reading off and on from the file, now it's time to talk and ask. First is that the discussion is great, serious design issues are comming up and...
2811
roy mills
rsirfj@...
Jul 3, 2001 6:54 am
... From: erik <erikw@...> To: Proa file <proa_file@yahoogroups.com> Sent: Monday, July 02, 2001 5:42 PM Subject: [proa_file] Canting dagerboard? . This...
2812
Rob Denney
carbondesign@...
Jul 3, 2001 7:10 am
G'day, Some new stuff in this, but the pod argument at the end has already been gone through. ... comfortable with sizing the crossbeams to take just that...
2813
Michael Schacht
michael@...
Jul 3, 2001 7:18 am
Welcome to the list, Erik. Search the Proa_file archives, there is quite a bit of spirited discussion on canted daggerboards that produce a stabilizing ...
2814
Jukka Vaijärvi
jukka.vaijarvi@...
Jul 3, 2001 10:51 am
I added couple of new languages to the dictionary database, namely finnish and esperanto. Feel free to correct me if you don't agree with my translations. ...
2815
Tom Whicher
twhicher@...
Jul 3, 2001 11:34 am
... It sounds to me like your hull is begining to plane. That is the main advantage of a trasom stern, as far as i can see, the wide flat aft sections allow...
2816
Malcolm Smith
mal@...
Jul 3, 2001 12:39 pm
... A transom drag stern is superior at speeds above the 'hull speed' (Vr) of the hull. What I mean by hull speed is the speed at which the wave length of the...
2817
Malcolm Smith
mal@...
Jul 3, 2001 12:39 pm
David McComber wrote ... If an accuracy =/- 10% will do, then you can use my HullCalc.xls spreadsheet in files in the Mal_Smith folder. Mal. -- Cybernautics -...
2818
Rob Denney
carbondesign@...
Jul 3, 2001 1:45 pm
G'day Welcome to the list. Good to see someone else enjoys a little conflict. So, tell us all about Jzero and your local proas. A couple of pages should do...
2819
roy mills
rsirfj@...
Jul 3, 2001 2:53 pm
... From: Tom Whicher <twhicher@...> To: <proa_file@yahoogroups.com> Sent: Tuesday, July 03, 2001 4:34 AM Subject: [proa_file] RE:Transom sterns VS...
2820
Han Bijlard
han@...
Jul 3, 2001 5:20 pm
... * lathe= Stationary tool where the material revolves, and a kind of knife cuts away material. * skin= outer surface of a hull (or human) * router= Tool...
2821
erik
erikw@...
Jul 3, 2001 6:38 pm
Thanks for the many suggestions. Well said Othmar. I agree that we're talking about dynamic systems and if we're having any fun then flying a hull can...
2822
K_S_ONeill@...
Jul 3, 2001 7:17 pm
I tried to post this earlier, but it appears lost. Sorry if I duplicate: Yo I, and I expect several others, am/are enjoying the light and heat show quite a...
2823
Brian Southwood
briansou@...
Jul 3, 2001 8:24 pm
Flow breaking clean off the transom is not necessarily planing. Planing is associated with a rise in c of g. Dynamic lift is lifting hull above rest position....
2824
Greg Blanchette
abuzz@...
Jul 4, 2001 6:23 am
Too true, Peter. You can demonstrate this easily by holding a bread knife vertically and drawing it quickly sideways through the water. You get sharp...
2825
R & V Thompson
rthompson10@...
Jul 4, 2001 8:29 am
Hi, I'm a newby to the proa_file and have been interested in pros after reading an article on Russell Brown's proas in 'Wooden Boat' magazine. I live on Bribie...
2826
Ted Lamont
tlamont@...
Jul 4, 2001 9:24 am
... Your initial statement has one in three chances of being true Greg if you take careful note of my signature quote! (joke - i'm surrounded by pedants) The...
2827
Brian Southwood
briansou@...
Jul 4, 2001 10:50 am
... From: Han Bijlard To: proa_file@yahoogroups.com Sent: 03 July 2001 07:18 Subject: Re: [proa_file] Updating dictionary, help needed ... * lathe= Stationary...
