The University of Maryland team responsible for the Gamera II human-powered helicopter NAA flight time record may be on its way to bagging another one -- this time for altitude. With new freshman pilot Henry Enerson spinning the cranks, the gigantic four-rotor design ascended to eight feet, an unexpectedly lofty level, according to the team. The well-controlled 25 second flight was far less than the record 49.9 seconds Gamera achieved earlier, but the new altitude bodes well for its upcoming Sikorsky Prize attempt. That $250,000 award, unclaimed since 1980, requires a 10-foot altitude to be maintained for one minute, and now looks to be distinctly in the UMD group's sights. Check the video after the break, and marvel at the ungainly quadrocopter's latest aerial exploit.
Filed under: Transportation, Alt
Gamera II hits new high with unofficial human-powered helicopter altitude record (video) originally appeared on Engadget on Wed, 29 Aug 2012 14:48:00 EDT. Please see our terms for use of feeds.
Permalink |
Team Gamara (YouTube) | Email this | Comments 
A team at the University of Maryland has been taking human powered flight to new heights. Or, rather, lengths, by setting a new US record for flight duration of 49.9 seconds with its Gamera II rotorcraft. The benchmark event actually took place in June, but only received the all important plaudits from the National Aeronautic Association on August 9. Gamera II builds on its predecessor (unsurprisingly, Gamera I) by featuring improved transmission, rotor design and a redesigned cockpit. Not content with smashing the previous craft's record of 11.4 seconds, the team plans to fly a further refined version of the copter with longer blades and other fine tuning later this month. The 49.9 second flight has also been submitted to the Fédération Aéronautique Internationale for World, rather than American-record verification. The guys at Maryland might want to keep an eye over their shoulders though, as it looks like someone else already has their eyes on that prize. Video evidence after the break.
Continue reading NAA verifies new US record for human-powered helicopter flight (video)
Filed under: Transportation
NAA verifies new US record for human-powered helicopter flight (video) originally appeared on Engadget on Sun, 12 Aug 2012 19:45:00 EDT. Please see our terms for use of feeds.
Permalink
GizMag | Alfred Gessow Rotorcraft Center | Email this | Comments 
By now it goes without saying that graphene is something of a darling in the research community, with scientists using the material to develop transistors, batteries and circuits, among other devices. In 2011, MIT researchers discovered graphene's effectiveness as a photodetector, and a team at the University of Maryland has taken that line of thought a few steps further. By using bilayer graphene (two atoms thick instead of one atom thick), the scientists developed a temperature-sensitive device more than 1,000 times faster than existing technologies. Not to mention, it's capable of recognizing a very broad range of light energies, which means it could be useful in everything from biochemical weapons detection to airport body scanners. Still, the UMD researchers have their work cut out for them: the graphene photodetector has a high electrical resistance, and it will require tweaks to absorb enough light to be useful. Still, this is graphene we're talking about -- and we don't expect its popularity to wane any time soon.
Scientists use bilayer graphene to develop extra-sensitive photodetector originally appeared on Engadget on Tue, 05 Jun 2012 05:02:00 EDT. Please see our terms for use of feeds.
Permalink |UMD Newsdesk | Email this | Comments