November 4, 2007 A hydrogen fuel-cell powered Micro-Unmanned Aerial Vehicle (UAV) has set a new distance record for craft of its type while only using a quarter of its available fuel. The “Pterosoar” flew 78 miles (120 km) - beating the previous record of 50 miles set in Estonia last year – consuming only 16 of the 64 grams grams of Hydrogen stored on board in a pressurized hydrogen tank, giving the aircraft a potential flight range of 310 miles (500 km).Horizon Fuel Cell Technologies (the company known for the H-Racer RC car and its involvement in the propulsion system for the 200 km/h Hyfish jet-wing UAV) provided the fuel cell system for the joint project supported by NASA, the Dryden Flight Research Center, the U.S. Air Force Office of Scientific Research and the National Science Foundation and led by Principal Investigators Dr. Maj Mirmirani, Dean of the Mechanical Engineering Department at California State University of Los Angeles (fuel cell system testing and integration);
Dr Andy Arena of Oklahoma State University Aerospace Engineering Laboratory (fuel cell aircraft development); and Temasek Polytechnic of Singapore (system control electronics).Fuel cells are an attractive proposition for micro-UAVs because they have the potential to deliver longer flight times, quieter operation, less heat signature, and higher reliability than batteries or other methods of propulsion. The ultra‐compact propulsion system used in project Pterosoar reacts hydrogen and oxygen from the air without combustion. The fuel-cell creates electrical power at 480 Watt hours per kilogram - 2.6 times the energy density of the best available batteries according to Horizon Fuel Cell.The Pterosoar aircraft (the name comes from a class of dinosaur that the aircraft resembles due to the shape of the fuel cell cooling scoops in its nose) will attempt a new world endurance record for small‐size unmanned planes in the next few weeks, aiming to exceed 15.5 hours of flight.Items related to Technic Universal Joint, 4L available on external websites:Buy lego technic 4 pcs gray universal joint connector 4l part piece mindstorms 9244Buy lego (2) universal joints joint 4 light grey (9244)Buy lego technic old light gray 4l universal joint 4 stud length connector part 9244Buy lego parts: technic, universal joint 4l light grayLike this?
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Mega Bloks Storytelling Racin’ Railway Wagon Thomas & Friends Axle City™ Truck Wash Blaze and the Monster Machines ATV Ground Recon Call of Duty Providing the best possible patient treatment in a professional and caring manner Helping you to perform at the highest levels of mobility possible Compassionate care in Southwest Virginia balanced with the latest technological advancements in the field We've led more than 50,000 Amputees down the Path to Recovery Hear our Patients Stories Throughout the 50 years that we’ve been helping people believe in their possibilities, we’ve been privileged to work with countless great patients and medical professionals. What to Expect as a Patient Our patients live their lives to the fullest and we are committed to seeing that they have the opportunity to resume whatever activities they enjoyed before their rehabilitation. Reach Out to Us Virginia Prosthetics & Orthotics now has 14 convenient Office and Clinic locations throughout Southwest Virginia ready to help you, where and when you need us.
We Are Virginia's Oldest and Largest Orthotics & Prosthetics Services Provider As an ABC-accredited facility in business since 1966, we've led more than 50,000 amputees down the path to recovery, leaving behind the trauma and emotion that new amputees often experience. Whether you're the patient, or it's a loved one facing an amputation, having the support and guidance of someone who's already traveled down the same road makes the journey to recovery that much smoother. One of the most important decisions any orthotic patient or amputee makes is choosing an O&P provider who can best serve them. There are many O&P companies, but just as in any service industry, some are much better at providing a superior service. Your relationship with your provider will be a lifelong experience and it should be one that instills confidence and satisfaction. Fishersville-area Amputees Participate in Golf Clinic Follow the link to see the Story Firefighter Receives a New Prosthesis
Spoiled Donkey Adjusts to Prosthetic Lower Leg No Events at this Time. Virginia Prosthetics is proud to be a founding member of the Virginia Orthotic and Prosthetic Association. We are dedicated to the association of certified Orthotic and Prosthetic Firms, Practitioners and Technicians. These members provide exceptional care in the orthotic and prosthetic services in the state of Virginia. We encourage every Virginia O&P provider to be a member of V.O.P.A. Only by joining together can we form a cohesive, unified voice with a defined agenda that can promote professionalism and protect our patients. Doug Call is president of Virginia Prosthetics & Orthotics, Inc, and a certified prosthetist. Doug is a graduate of Radford University, Radford, Va., and earned his Certificate of Prosthetics from Northwestern University Medical School, Chicago. Charlie serves as the liaison between the company and the health care professionals we work with to ensure that they receive the highest levels of service possible and to promote a cohesive team approach to orthotic and prosthetic care.