original idea

What if there was no more boats or ships, but there was only hovercrafts as our sea transportation? How will this affect us and the world?

we are all doomed if there were no boats or ships, just joking!!! hovercrafts are much faster than boats and can hold more people. military use the hovercraft because of its speed and ability. there is not that much hovercrafts as there are boats and ships. hovercrafts can go on sand and water not like boats only water. hovercrafts are the new ships. hovercrafts are unique in a way. hovercrafts dont touch the water like boats or ships.

Hovercrafts only work in water they dont work in streets
or sand because their is no friction on water, but their is
so much friction on streets and sands. this is why you dont
see hovercrafts on streets or sand only on water!!!!!!!!!!!

How does a hovercraft work?

The diagram above shows the basic principle of a hovercraft. Air is directed underneath the craft by a blower, and the air that escapes out of the flexible skirt creates a near frictionless environment which enables the craft to hover. The craft can move forward and turn by using propellers to propel the craft.

A hovercraft travels over land and water on a cushion or bubble of low-pressure air. A hovercraft has one or more blowers that blow air underneath the craft, which is contained by a skirt. The skirt that is around the perimeter of the hovercraft performs an extremely important function in containing the air cushion. By using a skirt, the amount of engine power required to lift the craft is considerably reduced and as an added benefit, extra hull surface clearance is obtained. The skirt is a long strip of material that is mounted onto the underside of the craft. When the skirt is inflated, it lifts the hovercraft. The escaping air coming from where the skirt touches the ground is what creates a friction-less cushion of air. Because the hovercraft has practically no friction, it takes little force to move the craft.

1)"Hovercrafts." Hovers. 21 Dec. 2008. 26 May 2008 .

Introduction

A hovercraft is a vehicle that glides over a smooth surface by hovering upon an air cushion. Because of this, a hovercraft is also called an Air-Cushion Vehicle or ACV. The hovercraft creates vents of air, which are trapped beneath the vehicle by a curtain surrounding the base. These currents of air can create an air cushion on any smooth surface, land or water! Since a hovercraft can travel upon the surface of water, it is also called an amphibious vehicle. Here is a picture of a modern hovercraft and a diagram showing how the air vents create the air cushion.

What is a hovercraft and what is it used for?

A Hovercraft, or Air-Cushion Vehicle (ACV), is an amphibious vehicle or craft, designed to travel over any sufficiently smooth surface supported by a cushion of slowly moving, high-pressure air, ejected downwards against the surface close below it.