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Synergy Aircraft Synergy
The Synergy Aircraft Synergy is a proposed five-seat, single-engine, kit aircraft, designed by John McGinnis of Kalispell, Montana and intended for production by his company, Synergy Aircraft. The aircraft's closed wing design, termed a "double box tail", is intended to lower induced drag and be stall resistant, along with boundary layer control methods. Many of the details are disclosed in . Design and development Development was started in 2010 to develop the Synergy as a future kit airplane. The Synergy is the first aircraft that was designed to use the DeltaHawk V-4 engine. An electric-powered 1/4 scale version of the aircraft has been built and flown via radio control. The Synergy design was unveiled at the 2011 CAFE Foundation electric aircraft symposium. The aircraft was intended to compete in the 2011 NASA/CAFE Green Flight Challenge, but its funding and engine were delayed, forcing the team to withdraw from the competition. After receiving the DeltaHawk engine i ...
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Air Mobility
Air assault is the movement of ground-based military forces by vertical take-off and landing (VTOL) aircraft—such as the helicopter—to seize and hold key terrain which has not been fully secured, and to directly engage enemy forces behind enemy lines. In addition to regular infantry training, air-assault units usually receive training in rappelling, fast-rope techniques and air transportation, and their equipment is sometimes designed or field-modified to allow better transportation within aircraft. The US Army field manual FM 1-02 (FM 101-5-1) describes an "air assault operation" as an operation in which assault forces (combat, combat support, and combat service support), using the firepower, mobility, and total integration of helicopter assets, maneuver on the battlefield under the control of the ground or air maneuver commander to engage and destroy enemy forces or to seize and hold key terrain usually behind enemy lines. Due to the transport load restrictions of helicop ...
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Green Flight Challenge
The Centennial Challenges are NASA space competition inducement prize contests for non-government-funded technology, technological achievements by United States, American teams. Origin NASA's Centennial Challenge Program (CCP) directly engages the public at large in the process of advanced technology development that is of value to NASA's missions and to the aerospace community. CCP offers challenges set up as competitions that award prize money to the individuals or teams to achieve the specified technology challenge. The prize contests are named "Centennial" in honor of the 100 years since the Wright brothers' first flight in 1903. The Wright Brothers' pioneering inventions embody the spirit of the challenges. The Centennial Challenges are based on a long history of technology prize contests, including the Longitude prize (won by John Harrison), the Orteig Prize (won by Charles Lindbergh), the Ansari X PRIZE (won by Scaled Composites), and the DARPA Grand Challenge (won by Stanf ...
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Airworthiness Certificate
A standard certificate of airworthiness is a permit for commercial passenger or cargo operation, issued for an aircraft by the civil aviation authority in the state/nation in which the aircraft is registered. For other aircraft such as crop-sprayers, a Special Airworthiness Certificate (not for commercial passenger or cargo operations) must be issued. Legal authority A certificate of airworthiness (CoA), or an airworthiness certificate, is issued for an aircraft by the civil aviation authority in the state in which the aircraft is registered. The CoA attests that the aircraft is airworthy insofar as the aircraft conforms to its type design. Each certificate is issued in one of a number of different categories when the aircraft is registered in the name of the owner. Thereafter, a yearly currency fee is payable to renew the CoA. If this fee is not paid when due, the certificate expires and the owner must apply again for the certificate. The CoA can only be issued when a maintenan ...
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AirVenture
EAA AirVenture Oshkosh (formerly the EAA Annual Convention and Fly-In), or just Oshkosh, is an annual air show and gathering of aviation enthusiasts held each summer at Wittman Regional Airport and adjacent Pioneer Airport in Oshkosh, Wisconsin, United States. The southern part of the show grounds, as well as Camp Scholler, are located in the town of Nekimi and a base for seaplanes on Lake Winnebago is in Black Wolf. The airshow is arranged by the Experimental Aircraft Association (EAA), an international general aviation organization based in Oshkosh, and is the largest of its kind in the world. The show lasts a week, usually beginning on the Monday of the last full week in July. During the gathering, the airport's control tower, frequency 118.5, is the busiest in the world. History EAA was founded in Hales Corners, Wisconsin in 1953 by aircraft designer and military aviator veteran Paul Poberezny, who originally started the organization in the basement of his home for buil ...
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Crowdfunding
Crowdfunding is the practice of funding a project or venture by raising money from a large number of people, typically via the internet. Crowdfunding is a form of crowdsourcing and alternative finance. In 2015, over was raised worldwide by crowdfunding. Although similar concepts can also be executed through mail-order subscriptions, benefit events, and other methods, the term crowdfunding refers to internet-mediated registries. This modern crowdfunding model is generally based on three types of actors – the project initiator who proposes the idea or project to be funded, individuals or groups who support the idea, and a moderating organization (the "platform") that brings the parties together to launch the idea. Crowdfunding has been used to fund a wide range of for-profit, entrepreneurial ventures such as artistic and creative projects, medical expenses, travel, and community-oriented social entrepreneurship projects. Although crowdfunding has been suggested to be highly li ...
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Kickstarter
Kickstarter is an American public benefit corporation based in Brooklyn, New York, that maintains a global crowdfunding platform focused on creativity. The company's stated mission is to "help bring creative projects to life". As of July 2021, Kickstarter has received $6.6 billion in pledges from 21 million backers to fund 222,000 projects, such as films, music, stage shows, comics, journalism, video games, board games, technology, publishing, and food-related projects. People who back Kickstarter projects are offered tangible rewards or experiences in exchange for their pledges. This model traces its roots to subscription model of arts patronage, where artists would go directly to their audiences to fund their work. History Kickstarter launched on April 28, 2009, by Perry Chen, Yancey Strickler, and Charles Adler. ''The New York Times'' called Kickstarter "the people's NEA". ''Time'' named it one of the "Best Inventions of 2010" and "Best Websites of 2011". Kickstarter repo ...
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Wired (magazine)
''Wired'' (stylized as ''WIRED'') is a monthly American magazine, published in print and online editions, that focuses on how emerging technologies affect culture, the economy, and politics. Owned by Condé Nast, it is headquartered in San Francisco, California, and has been in publication since March/April 1993. Several spin-offs have been launched, including '' Wired UK'', ''Wired Italia'', ''Wired Japan'', and ''Wired Germany''. From its beginning, the strongest influence on the magazine's editorial outlook came from founding editor and publisher Louis Rossetto. With founding creative director John Plunkett, Rossetto in 1991 assembled a 12-page prototype, nearly all of whose ideas were realized in the magazine's first several issues. In its earliest colophons, ''Wired'' credited Canadian media theorist Marshall McLuhan as its "patron saint". ''Wired'' went on to chronicle the evolution of digital technology and its impact on society. ''Wired'' quickly became recognized ...
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CAFE Foundation
The CAFE Foundation is a U.S. non-profit aviation development and flight test organization based in Windsor, California. CAFE was an acronym for"Competition in Aircraft Flight Efficiency" and became later "Comparative Aircraft Flight Efficiency." The organization promotes experimental aviation activities which promote the development of highly efficient aircraft. It is sponsored by many organizations including Boeing Phantom Works, NASA, EAA, AOPA, Glasair Aviation, among others; and funding is also obtained through an FAA grant.Sponsors listing from cafefoundation.org


CAFE 400

The CAFE Foundation is an outgrowth from activities sponsored by the

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Homebuilt Aircraft
Homebuilt aircraft, also known as amateur-built aircraft or kit planes, are constructed by persons for whom this is not a professional activity. These aircraft may be constructed from "scratch", from plans, or from assembly kits.Armstrong, Kenneth: ''Choosing Your Homebuilt - the one you will finish and fly! Second Edition'', pp. 39–52. Butterfield Press, 1993. Peter M Bowers: ''Guide to Homebuilts - Ninth Edition''. TAB Books, Blue Ridge Summit PA, 1984. Overview In the United States, Brazil, Australia, New Zealand and South Africa, homebuilt aircraft may be licensed Experimental under FAA or similar local regulations. With some limitations, the builder(s) of the aircraft must have done it for their own education and recreation rather than for profit. In the U.S., the primary builder can also apply for a repairman's certificate for that airframe. The repairman's certificate allows the holder to perform and sign off on most of the maintenance, repairs, and inspections themsel ...
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DeltaHawk Engines, Inc
DeltaHawk Engines, Inc. is an American aircraft engine manufacturer. The company builds Diesel and Jet-A-fuelled engines for general aviation aircraft. DeltaHawk engines have been tested in a Velocity RG homebuilt aircraft, an Australian Delta D2 helicopter and retrofitted in a Cirrus SR20 certified aircraft. In 2011 The State of Wisconsin and the city of Racine, Wisconsin granted low-interest loans to expand the company's production capability. DeltaHawk was originally working toward a 2012 Federal Aviation Administration certification of its engine line and later set a goal of 2015, but these were not achieved. The DeltaHawk DH180 received its type certificate from the FAA in May 2023, with first customer deliveries planned for 2024. DeltaHawk DH160 certification has not been completed. The Ruud family, led by Alan Ruud, took controlling interest in the company in May 2015. Their plans include development of the existing models in the engine line, plus development of higher ...
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Stall (flight)
In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', p. 486. Aviation Supplies & Academics, 1997. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is typically about 15°, but it may vary significantly depending on the fluid, foil, and Reynolds number. Stalls in fixed-wing flight are often experienced as a sudden reduction in lift as the pilot increases the wing's angle of attack and exceeds its critical angle of attack (which may be due to slowing down below stall speed in level flight). A stall does not mean that the engine(s) have stopped working, or that the aircraft has stopped moving—the effect is the same even in an unpowered glider aircraft. Vectored thrust in aircraft is used to maintain altitude or controlled flight with wings stalled by replacing lost wing lift with engine or propeller t ...
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