Re: atkins seabright skiff hulls and reliable power to speed predictions
Interesting numbers here... This thread and the other thread on the other forum about efficent hulls, one advocate being a narrow hull versus basically a conventional planing hull with the beam more in proportion with the length seems to almost prove that narrow does not always rule the day. For sure comfort does require some additional fuel but by comparison its worth it if you look at the comparisons here.
Over the weekend I did an open water test using exact measuring methods to see what my new 24 foot full cabin hull would do after some rough estimates from about eight different trips. After getting up on plane I can run in almost any water that I may experience if I need to and require if needed anyway which is pretty darn shallow. Anything less there is really no need anyway to be on plane.
I can at least skate across where I need to for sure and keep going in the most extreme places that I have been to date to check it out.
The boat and engine weighs 2260 lbs plus three people on board that weighs a combined weight 490 lbs and 105 lbs of assorted gear. In a three foot ground swell on the stern quarter both ways to my distination I ran 15 mph using 2.3 gallons and ran on cruise 4,800 rpm for 1.8 hours total and a tad bit of puttering around for about 15 minutes. The engine is a 40 hp four stroke outboard. How this computes to all the expert figuring I don't know. But by comparison its not much different than what I did in the 16 foot open fishing skiff with the same engine.
If you have seen it, I can build it. If you haven't seen it, I can built it too.