A little SeaCraft porn & video! SeaTrials

[copout]

So with both of us aboard we got 58!!!!
After I dropped off my brother to take the photos & video, I wasn't able to focus on the GPS while running. The area I was in doesn't allow much of a run between manatee zones & it's posted 25mph, ha! I really think I can get 60 without all the gear & riggers. It sure does get the blood pumping @ 58 though.

[workinpr0gress]

Strong #, do you have that baby past trim and a little into tilt in a couple of the pics? She boogeys for sure.

[Bigshrimpin]

Copout - What prop are you running with that setup?

[copout]

We were running about 5700 rpms & the only markings on the prop are 21-M, it's a 3 blade. I don't know the maker though, sorry. Maybe some of the more experienced will know by the markings.

[Bryan A.]

Great Pics!!!

[Fr. Frank]

We were running about 5700 rpms & the only markings on the prop are 21-M, it's a 3 blade.

If the pitch is 21", and you're really only turning 5700 rpms at that speed, that's a slip ratio of under 5%. ( my book says all the Yammie 200 2 strokes after 1997 had a 1.86:1 gear ratio.) I thought I was hot potatoes when I got my custom-made PowerTech which had 8% slip at WOT, trimmed.

Essentially, with those numbers, your prop is running at 95% efficiency. Industry average is 75-80%, and better than 88% efficiency (12% slip) is absolutely phenomenal. Many people pay $3,000 to $10,000 to get a single prop with only 10% slip or less.

I'd be interested in what a calibrated digital or computerized tachometer would show for actual rpms. Analog tachs can be off by as much as 10%, and average 3-5% error. A 5% error in the tach would make a difference of of 5% in slip ratio. Still phenomenal, either way.

It certainly reveals why SeaCraft is such a great racing hull.

[copout]

Most of that went right over my head but thank you!
From what I've been told on another forum the prop is a Yami pro series prop. Not suprising I'm getting a lot of non believers on that site. Some just don't know what a SeaCraft can do! I will do some more video in a few weeks for proof, just need a camera man cause the wife is not so good behind the wheel or the camera.

[seacraftks]

hello great pics of the boat running Just a suggestion if you want to get rid of those outriggers you can use a product called out rovers work awsome used them for years off lauderdale and caught tons of fish you can find them in fla sportsman the guy is local and will meet you anywhere

[captainpond]

That's awesome