These specialized boats have airfoil-shaped "wings" attached to their bellies. As they travel through the water, the foils produce lift just as they would in air, which raises the hull off the ...

When a plane is in the air, drag is a retarding force that equals the thrust of the craft, or the propelling force. Airfoil models are also unit tested in wind tunnels.

Wings are airfoils designed to directly deflect air upwards and thus push the rear of the vehicle down. They generally add quite a bit of drag.

The airfoil is still producing lift, albeit inefficiently and with a substantial increase in drag. There are several sources to find the exact lift and drag behavior of the airfoil used on your ...

Researchers from Harvard and the University of South Carolina have developed a new kind of airfoil, inspired by shark skin, that may improve lift in aircrafts.

Today, drag racing boats is still immensely popular and, like its land-based cousin, there are different type boats using various fuels and horsepowers, all running in various classes.

A 275mph drag racing boat bursts into flames before spinning out of control and disintegrating in a horrifying high-speed crash in front of a crowd of spectators. And amazingly the pilot Scott ...

Where an airfoil generates lift for a plane, a hydrofoil beneath the water’s surface can generate lift for a boat. The key advantage of hydrofoils is the reduction of hydrodynamic drag.

This characteristic makes the airfoil well-suited for fighter jets and other fast-moving aircraft. This airfoil provides a moderate amount of lift, but it doesn't cause too much drag either.