PhilSweet: I personally witnessed a gasoline fire aboard a classic powerboat at Mystic Seaport during (but the boat was not part of) the...
Involving younger designers means project-based learning for interested engineering / naval architecture students and other interested parties....
I'm potentially interested in a business stake in the company that builds it, ideally in partnership with an electric motor company. I know of...
Electric Launch Design optimized for semi-displacement speeds Final SOP, as published in the August / September issue of Professional BoatBuilder...
We're in the new issue of Professional BoatBuilder, as the "Parting Shot" on the last page....
https://www.roundbritain-erib.org/
Thank you, Jurgen - would love it if you could say more about this graph. I take it R/W is empirical total resistance over total weight as...
Too much power for the size and speeds specified in my SOP I think, but I just found out about a company in Bristol, RI building a 100 HP electric...
While exhibiting my front-facing rowboat at the WoodenBoat Show in Mystic, CT, got a good look at the East Passage 24 and met the designer, Walter...
You know, DC, this didn't occur to me when you first brought up sea sleds, but my sketch at posts #1 and #86, with its inverse deadrise stern and...
Saw this Mako model, resembling a sea sled, in a boatyard yesterday. Let me take this opportunity to say one could submit a multihull if they...
More discussion of this should probably be its own thread, but some quick thoughts: An extended club roof over a waterfront deck is often a good...
I think I was specific that at full load the top speed need only be Fn = 0.8; that the top speed of Fn = 0.9 was with two persons aboard. I'm...
USCG Subchapter T is for small boats, and there is a simplified stability test that I cited early in this thread that is similar to the ISO 12217...
Then I think I'd want to set category C CL just above what it is for the Clara 8m (which I do not know). If Nigel Irens wants to submit a version...
I don't have time, right at this moment, to make the numbers work out right, but let's say we stick with that we're looking to build some number...
One goal is to get you to offer something constructive. Should the lowest resistance boat be declared the winning design, or should capacity play...
From ISO 12217-1 2022 ed.4: "Crew limit = maximum number of persons on board." This differs from the nomenclature used in the U.S. CFR, where a...
I like it in some ways, but can the logic be applied to writing a formula to approximate CL? Because metacentric height is a product of...
Courtesy of ABYC I've obtained a copy of ISO 12217-1 Fourth edition 2022-12, being circulated for comment prior to its adoption. Of course, there...
