Here is a list of paper documents regarding wind turbine propulsion in my possession. Most discuss DWFTTW. "Performance characteristics of ice boats and an...
hello, now autaum is nearly here,will there be a ayrs meeting at thorpe soon? can somebody let me know as i want to pay my membership dues this year and become...
On Sept 1 2006 John Perry published on this Yahoo group website, a torsion formula which I required for stress analysis of my catamaran bridgedeck to hull...
... It looks to me like you have an indeterminant structure. The fore and aft lateral beam portions can resist torsion by differential bending. The lateral...
The whole structure is acting as a frame to provide torsional (and horizontal shear) stiffness and I agree with Tom that you cannot determine its properties...
Hi Ian I can give a very likely reason that your catamaran has turned out to be much stiffer than you predicted from the torsional stiffness of the tubes in...
Dear All, I am currently doing research for a 3rd year Boat Design module - at Coventry University, UK. I am aiming to design a new concept for a high speed,...
... I know a paraplegic sailor that has a Windrider Rave: http://www.windrider.com/rave.shtml. It has a secure cockpit that is suitable for someone with...
You might contact Hilary Lister who recently crossed The English Channel single handed using a puff and blow control system. Google finds her. Wally Paine ... ...
I'd just like to mention that Tom Speer's comments regarding wings refer to manually sheeted wings with no self trimming ability. These certainly would be...
Excellent - many thanks for your input. It will most definately help me. This self trimming option of rigid wing was indeed the method that i had in mind....
Tom many thanks indeed for all this thought provoking stuff. i hope you have recieved my email that i have sent you with a few quiries? regards, ali ... ...
Glad to be of service. This is not the first time I have been asked about mooring. Depending on the wind and/or the current, any moored boat puts strain upon...
... These 2.4 meter class boats (in principle a scaled copy of a 12m) are popular among the local disabled: http://www.vene-bjorndahl.fi/norlinmark_uk.htm ...
... I've also got experience with a tail-controlled wing (http://www.tspeer.com/landyachts/Lydia/LydiaPhoto.pdf). My comments include them as well. A rigid...
Some of my thinking: With respect to sailors relying on "puff and blow" technology to control their boats I'd consider using the "puff and blow" to control...
... The one objection I have to Peter's rigid sails is that they can't be lowered, or stowed away, when the wind turns nasty! But having a wind-vane/tail unit,...
Hello, Ali! Geoff Holt, a famous English disabled sailor, would like to correspond with you, but the email he sent you "bounced". Could you write him directly?...
Dear Mr Emmanuel Roche, Many thanks, I have sent Mr. Holt an email directly and look forward to hearing from him. Please do let me know if he has not recieved...
Hello, Ali! ... Ok. He is very busy at the moment, because he is answering reporters from many magazines and writing a book, following his sailing around the...
Hi, There are a number of free programs capable of lofting hull shapes and outputting stations on any spacing you'd like. I used this method, with stations on...
I did a conceptual design (largely complete, but needs work on details and hull scantlings, though beam calcs and hydrostatics done) of a 6m daysailing...
Some of the older versions of HULLFORM are either free or very low budget, and should do the job. John Perry has also written a hull deign program which seems...
Charles, You mention "Westlawn" in your post. Was the course any good? Wally Paine ... ___________________________________________________________ Want ideas...
It was one of those things that seemed a good idea at the time, but I had no idea how time consuming it would be - I've been at it for years, but still haven't...
Hello Charles, Thanks for your reply. I'm currently studying engineering with the OU but will I'll be looking for something else when I get my degree. Wally...
Sorry, if you already knew this (since it is 4 months old). While searching for something else on the Internet, I found a lot of pictures of a proa with a...
I am inquiring on behalf of my brother Marty who is a novice with a 1969 Globemaster. The trimaran is 25'11'' and built by Arthur Piver. Marty does not have...
