Helicopters can deliver military troops or rescue the wounded in tight spaces, but their rotating blade design also puts a hard limit on their speed and maneuverability. Now researchers have begun ...

Enlarged ed. of Practical helicopter aerodynamics, with additional material previously published in Rotor & wing international from 1982-1984. https://siris-libraries ...

For about 76 years, helicopters have served the world as an important alternative to fixed-wing aircraft. Helicopters can go places and do things that airplanes cannot, like save mariners stuck at sea ...

Although helicopter aerodynamics involves the same forces that arise in airplane aerodynamics, these forces occur differently due to fluid flow dynamics across the aircraft. Helicopters take advantage ...

Alfred Gessow, a prominent researcher and educator in the field of helicopter aerodynamics, died May 2 at a Birmingham, Ala., hospital, while under treatment for a heart condition. He was 79. Gessow ...

A conversation between a Virginia State Police helicopter pilot and his trooper co-pilot before a crash that killed both of them referred to an aerodynamic phenomenon that a National Transportation ...

With an eye on its rotorcraft future, the U.S. Army has been quietly performing independent experiments with advanced high-speed rotorcraft configurations. A modular wind tunnel model, the Compound ...

Helicopters have one of the most recognizable sounds in aviation. The signature "whop whop" or deep thumping sound announces its arrival long before it appears in the sky. It's a sound so iconic, it's ...