The thing I'm struggling to calculate mathematically (despite having relevant background) is passenger capacity. I'm lacking access to the full...
You're asking me to engage in a double negation. I created another thread so skeptics of the concept of a large scale use of batteries can take...
I'm seeing this as a design contest. Perry van Oosannen has agreed to play a role in assessment, and Aaron Porter of Professional BoatBuilder...
Quite sure it wasn't you, Ad Hoc. It's an implication from some concerning battery electric boats with respect to size & range.
To challenge the idea that electric boats must be of limited scale, I've created this separate thread: Incat is building a huge EV ferry!...
[MEDIA] Electric Future - INCAT https://incat.com.au/electric-future/
Here's the sketch where I showed a jet drive. I can't now locate the CAD file. This image file is dated 2011, but I think the sketch is even...
Question: how is passenger capacity established in Europe? The Oldport claims a passenger capacity of 18 while the Moonday 850, which is larger,...
1.43 tonnes puts displacement between the Oldport and the Clara. Yes, the value I gave for top speed with two people is intentionally lFn=0.9....
Electric Launch Design optimized for semi-displacement speeds Statement of Requirements Intent: A multi-purpose electric launch, comparable in...
Interesting stern of Luna Rossa Prada Pirelli. https://www.americascup.com/original/m18649_240413_LRPP_AC75_B3_D0_089-2.jpg
This launch, from Moonday Yachts in Turkey, is notably similar to my thinking in its hull shape. According to a late 2019 post on the company's...
Two electric launches in professional boatbuilder, both built in The Netherlands. Self explanatory: Tideman Boats Launches Electric HDPE Patrol...
I see Van Oossanen & Associates are the patent holders on HullVane: Hull Vane for Efficiency - Professional BoatBuilder Magazine...
While I don't disagree with anything I've read here, there are some new resins and methods that could reduce caustic outgassing. See my article:...
Geoff Van Gorkom electric boat: The Caper Skiff Power Boat from Van Gorkom Yacht Design https://www.vgyd.com/project/caper/
It's been a long time since I did prop calculations as a student. At that time I was relying on Bp curves for the propellers. Are those...
But I haven't referenced chop or a wave. The only dynamic element I'm talking about is the forward velocity of the boat and its relationship to...
Do you mean when the boat hits a wave? I had in mind the change in trim that occurs as one enters the semi-displacement regime - typically trim...
What I wonder is whether the very deep forefoot of Ankle Deep and the Clara 8m is specifically so the bow will NOT lift. If so, perhaps the bow...
