Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Autonomous Soaring Project UAV Cloud Swift
Hawks and eagles glide on currents of rising warm air called thermals to extend their flight time without needing more fuel. NASA aerospace engineer Michael Allen and a team of engineers working on the Autonomous Soaring Project at Dryden Flight Research Center have succeeded in extending the range of small unmanned air vehicles (UAVs) by programming them to autonomously soar on thermals.
(Michael Allen launches UAV by hand)
During the test, the software programmed into the 15-pound motor-glider's autopilot flew the aircraft on a pre-determined racetrack over the northern portion of Rogers Dry Lake at Edwards Air Force Base until it detected an updraft. Once the aircraft started to rise on the current, the engine automatically shut off and the aircraft circled to stay within the convective lift resulting from the thermal or updraft.
Did it work? According to the researchers, the small UAV added 60 minutes to its endurance by soaring autonomously. Nicknamed Cloud Swift after a bird known for feeding on insects found in rising air masses, the modified model sailplane gained an average altitude in 23 updrafts of 565 feet, and in one strong thermal ascended 2,770 feet.
"The flights demonstrated that a small UAV can mimic birds and exploit the free energy that exists in the atmosphere," Allen stated. "We have been able to gather useful and unique data on updrafts and the response of the aircraft in updrafts. This will further the technology and refine the algorithms that are used."
(Tony Frackowiak prepares the sailplane)
Science fiction writers have been using UAVs for surveillance for a generation or more. In his excellent 1980 science/fantasy novel Changeling, Roger Zelazny describes small, autonomous surveillance craft called 'tracer-birds' that were also able to detect and ride air currents:
The dark birdforms dotted the mountaintops like statues of prehistoric beasts, wings outspread. Had there been an eye to observe them, it might not even have noted their minute, tropism-like pursuit of the sun across the sky as they recharged their batteries for the night's flight....they stirred, almost simultaneously, as if shaken by a sudden breeze. They began to flex their wings.
Soon, one by one, they dropped from the heights, caught the air, rose, found their way, found their patterns, resumed their journey...
(Read more about Roger Zelazny's tracer-birds)
If you are interested in what it might feel like to be surveilled by a bird-like UAV, read about Little Bird, from Darwin's Children, a recent novel by Greg Bear.
Take a look at an extremely cool, lightweight bird-like UAV in Robotic Bird Has USAF Flocking. Read more about NASA research on extending UAV endurance. Thanks to Tariq Malik for contributing the story tip.
Scroll down for more stories in the same category. (Story submitted 10/6/2005)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 3 )
Related News Stories - (" Surveillance ")
FTC: Says Ring Employees Illegally Surveilled Customers
'Then she looked up with a smile and moved closer to the camera.' - Pournelle and Niven, 1981.)
Perching Ambush Drones
'On the chest of drawers something was perched.' - Philip K. Dick, 1956.
India Ponders Always-On Smartphone Location Tracking
'It is necessary... for your own protection.' - Jack Vance, 1954.
LingYuan Vehicle Roof Drones Now Available, ala Blade Runner 2049
Accompanied by a small selection of similar ideas from science fiction.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
I Need An Outdoor Spherical Displays
'Usually a spherical display hovered in the centre...'
Worm Disrupts Physics Simulations Undetected For A Decade
'It diverts integers of the data, the fundamental message-units, so that they no longer agree.'
Muxcard Redditor's DIY Credit Card-Sized Computer
It's a computer, but just barely.
'Soft Assembly' Fashions That Fashion Themselves On The Wearer
'Clothes are no longer made from dead fibers of fixed color and texture that can approximate only crudely to the vagrant human figure...'
Orwell's Nightmare Of AI-Written Novels Comes To Pass
'Books were just a commodity that had to be produced, like jam or bootlaces.'
ISS Plagued By Leak - Again!
'There were perhaps a dozen bladder-like objects in the tunnel...'
Ridiculous 'Ghost Murmur' Tech Still Science Fiction
'...it rears and spreads its fan. It can pick one man out of a crowd.'
Outdoor Video Screens Can Be Arbitrarily Large
The Shape of Things To Come
Infrared Contact Lenses To See In The Dark
'I can see in the dark, Case.'
What'll You Have? Extinct Animals Returned, Or Synthetic Eggshells?
'...a new plastic with the characteristics of an avian eggshell.'
Sunbird Pulsar Fusion Like Leinster's Space Tug
'It was a pushpot, which could not possibly be called a jet plane because it could not possibly fly. Only it did.'
RentAHuman App Lets AI Agents Hire Humans
'She wouldn't stop until Antar had told her everything he knew about whatever it was that she was playing with on her screen.'
Unitree CEO Wang Xingxing Runs With His G1 Robot Army
'Does thinking you're the last sane man on the face of the Earth make you crazy?'
AIs Turn Marxist Under Bad Management
'It was a general strike of the robots...'
Moscow Attacked By Hundreds Of Drones
'It hurtled on down with inconceivable speed until it was visible as thousands of tiny robot planes...'
Nifty Folding Electric Bicycles!
'Separate paths were provided for them...'
