Classic SeaCraft Community - Minimum Planing Speed for a 23

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Big, you nailed her lines! I, as you, feel that light is right. The old 2 strokes are right in their power band and you have much better control when navigating the elephants who chase our dreams.

I am leaning toward a single.
I haven`t thrown a brick at the tv all night. Are these my Red Sawx?

Things have changes since '04...the curse is vapors...but ball 4 to Halliday is bringing back 45 years of memories. Regardless, Go Sox!

God Bless America.
And our children. Fiberglass and otherwise. See ya on the west coast.
Oh, your on the Cape. When are you folks going to have a gathering?

You have more children up there no?

Cheers,
GFS

Feeling better now...almost time for bed. Yes, lots of little ones. Mine are 6 and 9. Can be limiting but my 6 yr old boy fishes off Chatham with me or I have heck to pay :)

Big,that is absolutely one beautiful looking rig.That picture of it on the trailer is worthy of being on a factory brochure for any builder.What a sweet ride.

Nice work Tim! She looks great. Got your Pm. Wish I could go for a ride in the darn thing....

Strick

Quote:

Originally Posted by gofastsandman (Post 221590)

That`s insane Tim!. What an ace in the hole.

Balance is sooo underrated. If you go offshore, you will get caught in changing conditions.
There is a reason you see sailboats in the afternoon. It`s called wind.

I`ve seen a lot of interest in Big hp and 4 strokes lately. Yes, I said Big. This is an undeniable demonstration of what works best and why.

It is helpful to have an understanding of Bernoulli`s principle of fluid dynamics. Both wet and dry. Remember the balsa wind up planes. How much thrust does a rubber band produce?
The plane flies because of an understanding of weight, balance, and design. A wing does not produce lift, it merely moves from an area of high pressure to an area of low pressure.

A mass of air or water tends to remain constant. When outside forces change this constant,
they create changes in pressure that cause movement.

The old Porsche race cars dominated F1. They did not sacrifice weight for handling. They valued light weight. A 600 cc race bike is damn near as fast as a super bike, it is just that much more responsive.

As you chase more HP with the associated weight and balance changes, you have corrupted the original design intent.

Min plane speed can save your bacon. And your back and feet and knees.

Your choice,
GFS

I love the look of that pilothouse. My adoration for purpose design layout is peaked with your build. Very, very nice!

One of the beautiful things about the 23 is their ability to handle weight and still perform well. My Tsunami holds plane loaded at 14 knots with no tab in flat seas. Not really impressive #s but considering my normal dive load consist of 150 gals of fuel, 700lbs of ice, 8 steel tanks, dive gear, tower, at least 3 people and a 30" 250 4 stroke on a 12" set back bracket, I'm pretty happy with it.

Balance IS truely underrated but we can't always be light. Personally I don't think I pay any penalty for using a 4 stroke on my rig. Mine swings a 16" wheel at a lower gear ratio than similar 2 strokes. It adds a rediculous amount of stern lift allowing flexibility and compensation for load and sea conditions. I don't think I suffer much in speed penalty either. I ran my boat at the gathering lighter than I have ever in it's current configuration only gaining 1 knot on top end. Ultimately, if I could run lighter I would save fuel and have a more responsive ride, but my enjoyment comes from the things I do on my rig and it does it sooooo right for such a small boat.

Sometimes I think Potter had a broader scope of use in mind for the 23 design. He utilized just about every power configuration and weight distribution format available and all performed well. From the weight forward Tsunami/Sceptor to the CC and the rear weighted Seavette, they all ranked as top performers in their class.
__________________

I agree: Bigshrimpin's pic of the 23 looks well balanced in the water with the chine evenly submerged the length of the hull side. As you move the center of balance aft with big engines and what not, and the stern begins to squat: planing speeds increase, ride quality decreases, weather deck no longer self- bails, boat does not sit as stable in the water. At this point, the balance of the boat has been ruined.

I haved taken HUGE efforts to try to adjust the placement of console, batteries, and fuel (two tanks forward and aft of a step down console compartment) on my present project just to compensate for the weight of two 115 hp four stroke outboards on the transom. My hope is that it ends up acceptable. I'll report back in the spring.

Tight lines

You're going to need to change your username to BigPimpin with the slick looks of that pilot house & new trailer! Good stuff & impressive balance with that low end planing.