What would be an ideal gear ratio for an 11 foot trimaran hull kayak using a dual 6 inch three blade counter rotating boat propeller set with a...
Hi, I would like to know how do you design a 3D propeller from 2D geometry,i.e. NACA profiles, blade sections?
Kind regards, happy boaters! I want to start a topic on wave force induced propulsion. Brief intro: I have been reading and enjoying this...
Hello everyone! I want to design a propulsion system for a tugboat with maximum performance on bollard pull using a ducted propeller (Kaplan)....
We are looking for a Hydrodynamic Engineer who wants to sit in Orlando, FL. Must be able to obtain a security clearance (does not need to be...
Dear, I would like to know if any member of the forum could assist me (or guide, at least). I am looking for the points/coordinates of Kort No....
Hi All, Can anyone advise how to do the powering calculation of a pusher tug. Pusher tug pushes -4 barges,each of 350 T capacity. Regards Adarsh
Not sure about the right place You can find a good information article here on waterjet propulsion . Learn about Waterjet Propulsion System - A...
Hi. Sooo its about 4 meters long catamaran boat with small electric motor propulsion. Hull (see attached picture below) is with aft tunnel to...
Hi, I am looking for a method to calculate resistance of a 40m vessel using the Van Oortmerssen (1971) procedure. Can anyone help with providing...
I have a 28' Hike Metal SAR boat with twin Volvo TAMD31's running Hamilton 211 jets through 1:1 Velvet Drive transmissions. The boat has an...
I'm planning a sailing (decent-performance cruising, not racing) catamaran, S/V Hypothetical. Construction is reinforced plastic, cored above...
Dear everyone, I started working on sailing yacht concept, my first project. For the purpose of making the GA I need to decide about Propeller...
I keep landing on these forums when I'm looking up things, so I thought I might as well make a thread of my own and maybe some of you geniuses...
First up: I am not a prop expert at all. the design goal is do find the most efficient solution for a long narrow hull design with a LWL of 24m...
I was ordered these and many more renders by Alamarin-Jet of their ACU-maneuvering system. Waterjet model AJ 288.
I was ordered these and many more renders by Alamarin-Jet of their ACU-maneuvering system. Waterjet model AJ 180.
Hello! I'm new for boat building, but I'm starting a new project where I need to build a boat with max measurements of 100cm (3ft 3in) x 80cm...
Hello everyone. Brand new member. I have been using a motorized yak for fishing about 15 years. In fact, I built the first motorized yak I ever...
Servogear Ecoflow propulsion system, more into at www.servogear.no
