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best rough weather hull forms

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best rough weather hull forms
best rough weather hull forms
How bad do Tri-Hull Boats ride in choppy water?


I've been looking at a 1974 Chrysler Tri-hull boat for pleasure and fishing. It is 18ft. and has a 90 hp. Evinrude
Outboard Motor and it is in great condition. But I've heard that they are terrible in choppy water or in waves over a foot or so. How bad are they and or aren't they that bad?
Thank you,
T.S. < :)

A "hull", or bottom of a boat, comes in several different forms. Each form has a unique shape that give it certain handling and performance characteristics. Your boat has the hull form that it has to best match the type of boating it was designed for. In general, hull forms fall into one of the two following categories:

Planing Hulls

Planing hulls are designed to ride on top of the water, regardless of the weight of the boat. The flatter the bottom, the easier it is to get on plane. Also, less power is needed to attain high speeds with a flatter hull. The trade off is in handling. Flat hulls do not do well in rough water. Many planing boats use a shallow "V" shape to ride better in rough waters.

Displacement Hulls

Displacement hulls typically have a rounded bottom with a tear drop shape running bow to stern. Displacement hulls "displace" or move, an amount of water equal to the weight of the boat. Displacement hulls are very efficient-- most long range cruising boats such as trawlers and many sailboats use this type of hull. But because of their design, displacement hulls are restricted in their speed to the square root of their waterline length times 1.34. Therefore, a 64 foot boat can realistically only expect a top end speed of a little over 10 knots.

The following hull types are variations of planing and displacement hulls.

Flat-bottom boats

The one thing you can say about flat-bottom boats is that with their large bottom area, the boat is very stable in calm weather. Characteristically, however, the flat, broad bow area creates a rough ride. These boats are usually limited to low horsepower motors because they don't handle well at high speed. Flat-bottom boats are greatly suited for fishing in skinny water from the Susquehanna River to the Florida Keys, where a very shallow draft is a must.

Early in our nautical history, boats were powered by wind or by hand-stroked oars. Early boat designers found that boats went faster, and were easier to steer, if the bow was pointed. They also soon discovered that by lowering the center of gravity, the high sail masts had better balance, and usually kept the boat upright even in bad weather.

Displacment, planing hulls

These early boats were constructed with "displacement" hulls. This means that the hull would push through or cruise through the water. The proper propeller for a displacement hull is one with a lower pitch when powered by an outboard or stern drive. With the advent of mechanical power came boats with "planing" hulls, which lift the boat partially out of the water to skim on the surface. Today, it's sometimes difficult to tell the difference between the two, but there are slight differences. Propellers on boats with planing hulls often are not fully submerged, so they need to provide holding ability as well as higher pitch and rake, because of higher top-end speeds.



No items matching your keywords were found.


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Hull protectorant


Hull protectorant


$19


Extend the life of your Sea Eagle boat with 303 protectant! Spray on every 30-45 days to improve resistance to UV, chemical and many other types of harmful exposure. 16oz.

Stealth Stalker 10 Deluxe Inflatable Pontoon Fishing Boat Package


Stealth Stalker 10 Deluxe Inflatable Pontoon Fishing Boat Package


$999


The Hunter Green Stealth Stalker 10 is a new kind of fishing boat equipped for use in various fishing conditions... on rivers, lakes, bays...in calm or rough weather. Comfortable for two, easily handled by one!

This roomy, portable, light weight boat features a fully enclosed hull for use on almost any body of water. Wide sectional floorboards provide plenty of fishing space and a conveniently located stow bag makes for easy access.

The NEW Hunter Green Stealth Stalker 10 is a stealthy inflatable boat that's perfect for Fishing or Hunting. Lightweight and portable it goes anywhere and sets up in under 15 minutes!

Utilizing a round-hull configuration with an inside cockpit this enclosed boat gives anglers a safe secure feeling while fishing in calm or rough seas. A truly stable and functional fishing craft that can be used in a wide range of fishing and water conditions.


Stealth Stalker 10 Pro Inflatable Pontoon Fishing Boat Package


Stealth Stalker 10 Pro Inflatable Pontoon Fishing Boat Package


$1249


The Hunter Green Stealth Stalker 10 is a new kind of fishing boat equipped for use in various fishing conditions... on rivers, lakes, bays...in calm or rough weather. Comfortable for two, easily handled by one!

This roomy, portable, light weight boat features a fully enclosed hull for use on almost any body of water. Wide sectional floorboards provide plenty of fishing space and a conveniently located stow bag makes for easy access.

The NEW Hunter Green Stealth Stalker 10 is a stealthy inflatable boat that's perfect for Fishing or Hunting. Lightweight and portable it goes anywhere and sets up in under 15 minutes!

Utilizing a round-hull configuration with an inside cockpit this enclosed boat gives anglers a safe secure feeling while fishing in calm or rough seas. A truly stable and functional fishing craft that can be used in a wide range of fishing and water conditions.


NN14 Start-Up Package Inflatable Stand-Up Paddleboard Package


NN14 Start-Up Package Inflatable Stand-Up Paddleboard Package


$1149


The New NN14 is specifically designed for persons looking to combine touring performance in a variety of environmental conditions with increased flotation, rigidity and even more stability!
This Breakthrough Design features: a straight-line hull, patent pending razor sharp, wave piercing bow, elegantly curved touring shape, full length diamond deck pad with custom performance kick tail and the ability to paddle faster, further and easier!
Best suited for those weighing 275 lbs or less.

NN14 Electric Pump Inflatable Stand-Up Paddleboard Package


NN14 Electric Pump Inflatable Stand-Up Paddleboard Package


$1399


The New NN14 is specifically designed for persons looking to combine touring performance in a variety of environmental conditions with increased flotation, rigidity and even more stability!
This Breakthrough Design features: a straight-line hull, patent pending razor sharp, wave piercing bow, elegantly curved touring shape, full length diamond deck pad with custom performance kick tail and the ability to paddle faster, further and easier!
Best suited for those weighing 275 lbs or less.

NN14 Deluxe Package Inflatable Stand-Up Paddleboard Package


NN14 Deluxe Package Inflatable Stand-Up Paddleboard Package


$1249


The New NN14 is specifically designed for persons looking to combine touring performance in a variety of environmental conditions with increased flotation, rigidity and even more stability!
This Breakthrough Design features: a straight-line hull, patent pending razor sharp, wave piercing bow, elegantly curved touring shape, full length diamond deck pad with custom performance kick tail and the ability to paddle faster, further and easier!
Best suited for those weighing 275 lbs or less.

NN126 Start Up Inflatable Stand-Up Paddleboard Package


NN126 Start Up Inflatable Stand-Up Paddleboard Package


$1049


Sea Eagle's NeedleNose 126 offers an even larger stable platform with increased flotation. Larger then the NN116 but smaller than the NN14, the NN126 puts you right in the middle. So you get the best of both worlds!
Breakthrough Design features: straight-line hull, patent pending wave piercing bow, touring shape, diamond pattern deck pad, custom performance kick tail and the ability to paddle faster, further and easier!
At 6" thick there's no need to worry about rigidity or flotation any more! Sitting or standing the NN126 does it all!
Best suited for those weighing 225 lbs or less.

NN126 Deluxe Inflatable Stand-Up Paddleboard Package


NN126 Deluxe Inflatable Stand-Up Paddleboard Package


$1149


Sea Eagle's NeedleNose 126 offers an even larger stable platform with increased flotation. Larger then the NN116 but smaller than the NN14, the NN126 puts you right in the middle. So you get the best of both worlds!
Breakthrough Design features: straight-line hull, patent pending wave piercing bow, touring shape, diamond pattern deck pad, custom performance kick tail and the ability to paddle faster, further and easier!
At 6" thick there's no need to worry about rigidity or flotation any more! Sitting or standing the NN126 does it all!
Best suited for those weighing 225 lbs or less.

NN126 Electric Pump Inflatable Stand-Up Paddleboard Package


NN126 Electric Pump Inflatable Stand-Up Paddleboard Package


$1299


Sea Eagle's NeedleNose 126 offers an even larger stable platform with increased flotation. Larger then the NN116 but smaller than the NN14, the NN126 puts you right in the middle. So you get the best of both worlds!
Breakthrough Design features: straight-line hull, patent pending wave piercing bow, touring shape, diamond pattern deck pad, custom performance kick tail and the ability to paddle faster, further and easier!
At 6" thick there's no need to worry about rigidity or flotation any more! Sitting or standing the NN126 does it all!
Best suited for those weighing 225 lbs or less.

12.6sr Drop Stitch Deluxe Inflatable Boat Package


12.6sr Drop Stitch Deluxe Inflatable Boat Package


$2099


The 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat with plenty of room. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.

12.6sr Deluxe Inflatable Boat Package


12.6sr Deluxe Inflatable Boat Package


$2099


The 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat with plenty of room. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.

NN116 Deluxe Inflatable Stand-Up Paddleboard Package


NN116 Deluxe Inflatable Stand-Up Paddleboard Package


$1049


Sea Eagle's NeedleNose 116 features a Breakthrough Patent Pending Design with straight-line hull, wave piercing bow, hydrodynamically curved touring shape and the ability to paddle faster, further and easier! A feather weight in it's class and by no means a push over, the NN116 allows you to perform advanced maneuvers!
The diamond deck pad with custom performance kick tail allows for sharp pivot turns. This SUP is 6" thick and weighs only 23 lbs. Whether you choose to sit or stand the NeedleNose 116 is sure to have everything you're looking for.
Best suited for those weighing 200 lbs or less.

NN116 Electric Pump Inflatable Stand-Up Paddleboard Package


NN116 Electric Pump Inflatable Stand-Up Paddleboard Package


$1199


Sea Eagle's NeedleNose 116 features a Breakthrough Patent Pending Design with straight-line hull, wave piercing bow, hydrodynamically curved touring shape and the ability to paddle faster, further and easier! A feather weight in it's class and by no means a push over, the NN116 allows you to perform advanced maneuvers!
The diamond deck pad with custom performance kick tail allows for sharp pivot turns. This SUP is 6" thick and weighs only 23 lbs. Whether you choose to sit or stand the NeedleNose 116 is sure to have everything you're looking for.
Best suited for those weighing 200 lbs or less.

NN116 Start Up Inflatable Stand-Up Paddleboard Package


NN116 Start Up Inflatable Stand-Up Paddleboard Package


$949


Sea Eagle's NeedleNose 116 features a Breakthrough Patent Pending Design with straight-line hull, wave piercing bow, hydrodynamically curved touring shape and the ability to paddle faster, further and easier! A feather weight in it's class and by no means a push over, the NN116 allows you to perform advanced maneuvers!
The diamond deck pad with custom performance kick tail allows for sharp pivot turns. This SUP is 6" thick and weighs only 23 lbs. Whether you choose to sit or stand the NeedleNose 116 is sure to have everything you're looking for.
Best suited for those weighing 200 lbs or less.

12.6sr Swivel Seat & Canopy Inflatable Boat Package


12.6sr Swivel Seat & Canopy Inflatable Boat Package


$2449


The 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat with plenty of room. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.

12.6sr Drop Stitch Swivel Seat Inflatable Boat Package


12.6sr Drop Stitch Swivel Seat Inflatable Boat Package


$2299


The 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat with plenty of room. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.

12.6sr Swivel Seat Inflatable Boat Package


12.6sr Swivel Seat Inflatable Boat Package


$2299


The 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat with plenty of room. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.

12.6sr Drop Stitch Swivel Seat & Canopy Inflatable Boat Package


12.6sr Drop Stitch Swivel Seat & Canopy Inflatable Boat Package


$2449


The 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat with plenty of room. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.

12.6sry Drop Stitch Swivel Seat Inflatable Boat Package


12.6sry Drop Stitch Swivel Seat Inflatable Boat Package


$2099


Now in high visibility yellow, the 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The extra wide 6" Rubbing Strake provides an added layer of protection and the rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.

12.6sry Swivel Seat Inflatable Boat Package


12.6sry Swivel Seat Inflatable Boat Package


$2099


Now in high visibility yellow, the 12 ft. 6 inch long Sport Runabout is a mid-sized inflatable sport boat. Large enough to be considered a serious transom boat yet light enough to be placed inside or on top of an average vehicle. Best of all there's no trailer required.
The extra wide 6" Rubbing Strake provides an added layer of protection and the rounded bow shape increases cargo space, buoyancy, fuel economy and makes for a softer ride.
The inflatable Drop Stitch Floor Package keeps the overall hull weight at just 108 lbs. verses 147 lbs. with plastic floorboards. That's over 25% lighter while still able to carry up to 6 adults or 1600 lbs.


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{ 3 comments }

vutEwa September 19, 2010 at 2:41 pm

your level of stupidity is truly astounding, its almost worthy of some kind of study to see just how it is a human being can be as´╗┐ dumb as you and still be alive.

margot June 5, 2011 at 4:10 pm

Sorry I just saw this. Wish u had posted the poem.

Mindy M July 28, 2011 at 10:40 am

Uh, she's a stupid slut. Why are you sorry? There's no excuse for cheating. Yeah, maybe you grew apart but she didn't do anything to fix it either. Don't blame yourself better to find out now she can't keep her legs closed than when married.

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