Max Speed Attainable with These Fgures

[omcstratos]

I have raced boats for a great number of years. One thing experience has taught me. Never go by an instruction manual, and never believe a theory. If we all went by the books and theories, where would the world be today ? Think Mr. K listened to the critics when he developed an outboard ?

One huge thing to think about, what works on one persons rig might not work well on another. There are way to many foctors at play to calculate anything accurately. I would say add or subtract ten MPH from those sums. Those formulas get you to a starting point, after that it is up to the individual to tweak and achieve the desired result. In addition, those formuals do not account for certain modifications some do internally. Like I said, way to many things to account for each one. Testing is key.

Still agree with this. So many variables to work with. Pitch can also vary from prop to prop, and is not always accurate. Nothing compares to the real testing.

[Nason]

maximum possible speed with those figures would be 61mph, but that would be impossible to reach with a boat on water,
it would be nearer to 56mph with a slip of just 8%
that would be a good figure to attain without spending a fortune on getting the perfect racing hull and being ultra lightweight.

Guess I am doing good 56.9 / 57 mph on 2 different gps and 57.3 was the best

[champ20B]

What would be max speed on 16p, 1.83 gears and 7400rpms?

7400RPM??!!!! Wow!!! You must have one "bad to the bone" outboard running them kind of revs!!!! LOL!!
Anyway, you would theoretically get 61.27 MPH. But at about 80% you'll see 49-50 MPH. Now, at 90% you will see about 55MPH. Estimate, about 47-57 MPH give or take, depends on the weight, or the wind at your back, stayin on track!!

[pdt]

need to post up some video's and pictures of this boat Nason.
im sure loads of people would love to see this in action, sounds like a real ultra high performance race boat to get those speeds.
your slip percentage is fantastically low, great set up.

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[Nason]

Don't know how to post videos give me a email address and you can post it.

[omcstratos]

I'd like to see that actually. You got a pic of your setup or anything? Send me some pics here or PM.

[Nason]

sent 2 videos to pdt if you like post your email and I will send them to you also

[Nason]

need to post up some video's and pictures of this boat Nason.
im sure loads of people would love to see this in action, sounds like a real ultra high performance race boat to get those speeds.
your slip percentage is fantastically low, great set up.

.

Pdt you saw the videos what are your thoughts?

[pdt]

nice boats
I do like the way it jumps up onto plane very quickly, and not a lot of boat in the water when running full throttle.
obviously set up dead right.

what is it like the rough water ? or have you not got rough stuff out there

[MWhite]

maximum possible speed with those figures would be 61mph, but that would be impossible to reach with a boat on water,
it would be nearer to 56mph with a slip of just 8%
that would be a good figure to attain without spending a fortune on getting the perfect racing hull and being ultra lightweight.

impossible to reach with a boat on water,, I can run this speed all day long in my boat, so its not impossible.