Jimboat

One of the boatdesigns members Eric W. Sponberg Naval Architect (retired) wrote: THE DESIGN RATIOS A Naval Architect’s Dozen (or...

The tow line needs to align with the propeller thrust vector, but that may not be sufficient for studying the instability. Let's assume...

Looking for recommendations on plans for a 28–31’ power cat. I’m a charter captain, and during my off-season I build boats. I’m...

A huge number of computational methods suddenly become more reliable. But that doesn't necessarily mean a Great Leap Forward (tm) for...

I'm building one of these myself right now. Glen L Tiny Titan Hydroplane, Tiny Titan https://boatbuildlog.com/builds/hydroplane-for-the-kids

Just started my own build of one of these. Glen L Tiny Titan Hydroplane, Tiny Titan https://boatbuildlog.com/builds/hydroplane-for-the-kids

And years of experience. My previous post not withstanding, I would hazard to guess that even today 60% of all boats are "designed"...

Hi Barry, First, since fluids cannot transfer tension, you should not use “negative pressure”; it often causes misinterpretations. You...

A remarkable person and professor. It was a privilege and my honor meeting him and taking his excellent graduate course “The...

looks like a fun project. you should decide on hull type, size, weight, target velocity, etc before considering engine spec.

If you don't have a lot of money, a used boat is a better idea. You can't choose a power source until there is a hull to go with it...

There's more to making a pontoon boat go fast than a vee or tunnel, but here's some info that might be interesting or helpful.