Helicopter – New Look

Music
Ambience: V-22 tiltrotor Airplane mode fly by, V-22 tiltrotor Airplane mode fly over, V-22 tiltrotor helicopter mode fly by, V-22 tiltrotor helicopter mode on ground, Tiltrotor vertical take-off

The design of a typical helicopter hasn’t changed significantly since they went into mass production in the early 1940’s. After 60 years, it may be time for a makeover. I’m Jim Metzner and this is the Pulse of the Planet. William Warmbrodt, Chief of the Aeromechanics Branch at Ames Research Center, hopes that a new generation of helicopters could be used instead of jet airplanes on short, regional flights. We’re listening to the sound of a tilt-rotor helicopter, one of the recent designs that could provide this new form of commercial transportation.

“Helicopters are very efficient as hovering vehicles. They are not as efficient as airplanes when flying in forward flight. We’re therefore developing advanced configurations of helicopters that actually have the characteristics of airplanes as they fly in forward flight. This is done in a number of approaches. One aircraft configuration that holds promise is the tilt rotor. A tilt rotor uses two large rotors at the tips of the wings oriented vertically to take off in a helicopter-like manner vertically. As the helicopter were to transition forward, the props are tilted forward and become like propellers in forward flight. Using two of these large, very efficient prop rotors allows the tilt-rotor aircraft to begin to approach the efficiencies of turbo-prop aircraft. Our challenge is to be able to mature the technologies and to provide for an efficient and productive tilt-rotor aircraft that can replicate and replace the current turbo-jet aircraft that people are flying on, using our highly congested runways.”

Pulse of the Planet is made possible by the National Science Foundation, with additional support from NASA. I’m Jim Metzner.

Helicopter - New Look

After sixty years, helicopters are getting a new look!
Air Date:09/25/2007
Scientist:
Transcript:

Music
Ambience: V-22 tiltrotor Airplane mode fly by, V-22 tiltrotor Airplane mode fly over, V-22 tiltrotor helicopter mode fly by, V-22 tiltrotor helicopter mode on ground, Tiltrotor vertical take-off

The design of a typical helicopter hasn’t changed significantly since they went into mass production in the early 1940’s. After 60 years, it may be time for a makeover. I’m Jim Metzner and this is the Pulse of the Planet. William Warmbrodt, Chief of the Aeromechanics Branch at Ames Research Center, hopes that a new generation of helicopters could be used instead of jet airplanes on short, regional flights. We’re listening to the sound of a tilt-rotor helicopter, one of the recent designs that could provide this new form of commercial transportation.

“Helicopters are very efficient as hovering vehicles. They are not as efficient as airplanes when flying in forward flight. We're therefore developing advanced configurations of helicopters that actually have the characteristics of airplanes as they fly in forward flight. This is done in a number of approaches. One aircraft configuration that holds promise is the tilt rotor. A tilt rotor uses two large rotors at the tips of the wings oriented vertically to take off in a helicopter-like manner vertically. As the helicopter were to transition forward, the props are tilted forward and become like propellers in forward flight. Using two of these large, very efficient prop rotors allows the tilt-rotor aircraft to begin to approach the efficiencies of turbo-prop aircraft. Our challenge is to be able to mature the technologies and to provide for an efficient and productive tilt-rotor aircraft that can replicate and replace the current turbo-jet aircraft that people are flying on, using our highly congested runways.”

Pulse of the Planet is made possible by the National Science Foundation, with additional support from NASA. I’m Jim Metzner.