SILENT ARROW™: STEALTH HYBRID ELECTRIC UAV
The Future of Unmanned Aircraft Systems
Silent Arrow is the future Armed Reconnaissance UAS asset of choice in the medium altitude, long-endurance operating space. The mid-air rechargeable, infrared-suppressed, two mode hybrid electric propulsion system brings U.S. military forces the new ability to fly long-to-infinite range missions to deliver munitions or ISR undetected. Silent Arrow supplements existing UAVs like Predator, giving regular forces and special operators an ultra-high performance but extremely low observable Armed Reconnaissance UAS in extreme and high risk environments and those critical to national security.
Silent Arrow is enabled by recently developed and in-process Yates Electrospace Corporation (YEC) innovations in engine and propulsion technologies and in strategic suppression of acoustic and IR signatures to avoid detection. Through an innovative melding of emerging COTS technologies with YEC proprietary technologies and software, an entirely new level of price-to-performance is achieved at entrepreneurial execution speeds, at significantly lower cost, and with low environmental impact.
Innovation and Technology Summary
The Infinite Range Electric Flight technology comes from our seminal mid-air recharging patent “Long Range Electric Aircraft and Method of Operating Same,” which we presented at NASA Ames Research Center and at 2012 EAA AirVenture Oshkosh by invitation from EAA and from the Charles and Anne M. Lindbergh Foundation.
Photo: Silent Arrow™ (X-IREF) manned prototype showing 258 HP liquid-cooled electric drive
Our proprietary electric powertrain control software, destination assurance algorithms, KERS control software and lithium-ion battery pack solutions were developed over 12 months and proven in our recent electric land-vehicle technology program, which achieved gasoline performance parity while establishing 10 world records, and was a full-cover feature in Popular Science Magazine.
Our currently-flying manned technology demonstration aircraft uses an adaptation of our 258 horsepower all-electric powertrain and is being further developed for the demonstration of the world’s first mid-air recharge of an electric aircraft for the U.S. Navy, under our Cooperative Research and Development Agreement (CRADA) that is in place between YEC and the U.S. Naval Air Weapons Station, China Lake.
Built by YEC in just two months, our technology-demonstrating X-IREF aircraft is the world’s most powerful and holds four world records, including the international record for the fastest electric airplane at more than 200 MPH.
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