Custer channel wing micro indoor rc plane microbuilder. Channel wing as a potential vtolstol aerovehicle concept. It requires a new concept in wing design, making it an aircraft. Perhaps the only disadvantage was the additional weight and drag produced by the channel wing structure. Willard custer filed a united states patent in 1929 for a wing design incorporating a semicircular channel or half barrel shape in which an engine was to be fitted in pusher mode.
The channel wing, which takes its name from the semicircular trough each wing forms below the engine, is a 1940s design that didnt get past a prototype. Pdf an analitical and numerical study of the custer channel wing. The ccw5 channel wing aircraft designed by william. Custer channel wing airplane has been tested in the langley fullscale tunnel to.
Custer claimed that this layout, the channel wing, which gave stol operating capabilities, resulted in a design which is an aircraft not an airplane. The aircraft was the third and last of a series of custer channel wing designs. Pdf the purpose of this paper is to offer an analytical optimization of the custer channel wing ccw and also to numerically. Custer claimed that this layout, the channel wing, which gave stol operating capabilities, resulted in a. The custer channel wing was a series of americanbuilt experimental aircraft designs of the 1940s and 1950s incorporating a halfbarrel shaped section to each wing. The channel further has a trailingedge slot that is adjacent to the rounded trailing edge of the channel. If you have photoshop or gimp free you can import pdf files and export them to most graphic file formats dont forget to set the dpi to at least 300 if importing page size scans as the dpi decreases as you up the scan to full size of the model. The first aircraft to incorporate custers concept was the ccw1, fitted. Appellants, custer channel wing corporation and willard r.
Custer retired early 1968, but remained as consultant throughout prolonged certification program by devore aviation service corporation. Custer s approach was based on the idea that it is the speed of the air over the wing, and not the wing through the air, which generates lift. Test of two custer channel wings having a diameter of. Out of money and out of ideas, the corporation relegated the aircraft to storage where it languished without the needed maintenance. Pdf structural design exploration of an electric powered.
Custer channel wing corporation 1960s stock certificates. An aircraft comprising a channel wing having blown channel circulation control wings ccw for various functions. Use of custer channel wingswing ducts on small uavs. Custer channel wing, coanda effect, super circulation, rans, cfd. Its stol, capable of extremely short takeoff runs and landings. Files are available under licenses specified on their description page. It is still strangely modern, even after all these years, with a smoothly rounded fuselage, and a wrap around plexiglas canopy. Build diy free balsa wood rc plane plans pdf plans wooden diy storage platform bed plans michael games join in the world of pin boat dock designs and plans woodworking plane plans free woodworking plane plans caleb james chairmaker planemaker free, toy plane plans toy airplane free project plan wood working, so here we go again it looks. The first real aircraft to which he applied his principle, was the ccw1, or custer channelwing number one, which now hangs at the garber facility of the smithsonian. A thrust enhancer for use in conjunction with the air intake of a jet engine for increasing effective thrust of the engine, comprising an internally unrestricted bellshaped member mounted positionally forward of the intake of said engine, said member having a forward open end flared portion with an outer diameter substantially greater than the greatest diameter of said engine or the inlet. Custer channel wing corporation specimen stock certificate. Advancements in aircraft electric propulsion may enable an expanded operational envelope for electrically powered vehicles compared to their internal combustion engine counterparts.
As a result of this paper, the article in the scientific american in december 1986, and demonstrations by and interviews of allan ab. Langley fullscaletunnel tests of the custer channel wing. A dual channel wing for an aircraft, comprising an inboard and an outboard portion, wherein each portion comprises a channel wing section. Applications of circulation control technologyindex. Each channel may include a propulsor and the propulsors of each of the channels may be offset relative to one another in the chordwise direction of the wing. Us7104498b2 channelwing system for thrust deflection and. The ccw1 awaits restoration at the smithsonians national. A channel wing has an upwardly opening semicylindrical channel placed near the aircraft fuselage. But the channels, which seem out of place, if not freakish, in an airplanes wing, generate high levels of lift, and that opens up. The channel wing is an aircraft wing principle developed by willard ray custer in the 1920s. The most important part of the wing consists of a halftube with an engine placed in the middle, driving a propeller placed at the rear end of the channel formed by the halftube.
The custer channel wing is a wingpropeller arrangement designed to produce lift. Two ccw5s flew, eleven years apart, but the type never entered production. During the early 1950s, custer formed the custer channel wing corporation to develop and build the fiveseat ccw5 design which was intended for commercial sale. The blue portion presumably a link cites an israeli fixed wing version. The sheme of custer channel wing functionning at v 0 and. Custer claimed that this layout, the custer channel wing, which gave stol operating capabilities, resulted in a design which is not an airplane, it does not plane the air to fly, rather it brings the air to the lift surfaces and reduces pressure to fly at 8 to 11 mph. Langley fullscaletunnel tests of the custer channel wing airplane. A channel wing has an upwardly opening semicylindrical. The first aircraft to incorporate custer s concept was the ccw1, fitted.
Combined with custers refusal to sell his patents to other manufacturers, the channel wing faded into obscurity. Despite its founders efforts to keep the company solvent, custer channel wing corporation eventually closed through lack of funds. The custer ccw5 was a twinengined, 5seat aircraft of pusher configuration, which used a channel wing claimed to enable low speed flight and short takeoffs. There was a plane that i have no idea what it was called and it was definitely in rcm because i remember reading about it at school we had a subscription to the magazine in the library and it had a cylindrical wing. The custer channel wing was tested by naca during 1952. Use of custer channel wingswing ducts on small uavs request. High aspect ratio wings provide additional lift and drag reduction for a proposed multipropulsor design, however, the challenge is to reduce the weight of wing structures while maintaining adequate structural and. Although custer never did succeed in selling the aviation industry on this design there is no question that it worked and who knows but that it may be resurrected some day. The custer channel wing is a wing propeller arrangement designed to produce lift statically or to augment the normal lift when the vehicle has some forward velocity. There it was involved in one demonstration for the military, but no contract materialized. The channel wing concept, first proposed by willard custer in the late 1940s, is a promising candidate for efficient vstol performance. All structured data from the file and property namespaces is available under the creative commons cc0 license.
But the channels, which seem out of place, if not freakish, in an airplanes wing, generate high levels of lift, and that opens up all sorts of design possibilities. Plenum vs no plenum, circulation control stimulation test results and, 524 525 pneumatic aerodynamic technology automobiles and, 357 381 heavy vehicles hv and, 357 381 sport. The series faithfully captures custers daring exploits with the 7th cavalry prior to the infamous battle at the little big horn. Flight tests of an airplane incorporating two of these channel wings were conducted first by the inventor. Integrated studies of combined wing with custer effect for stol vtol aircraft. The custer channel is a wing when unpowered, and generates approximately 10% greater lift than a straight wing the diameter of the channel. Please practice handwashing and social distancing, and check out our resources for adapting to these times. Pdf channel wing as a potential vtolstol aerovehicle concept. Jun 11, 2011 heres willard custers great grand nephew of gen.
Custer channel wing micro indoor rc plane micro rc planes balsa wood models boat radio helicopter plane rc model model airplanes paper models rubber bands radio control custers channel wing in micro form for living room flying. Combined with custer s refusal to sell his patents to other manufacturers, the channel wing faded into obscurity. This new design, the custer channel wing, is a versatile airfoil, and utilizes the forces of aerophysics, atmospheric pressure, gyroscopical action, impact pressure, thrust, etc. The ccw1 awaits restoration at the smithsonians national air and space museum. Langley fullscaletunnel tests of the custer channel wing airplane by. In the past week i answered a similar query from an me. Custer, its president, were convicted of criminal contempt for violating an injunction issued by the district court, permanently enjoining them from engaging in acts or practices that would constitute a violation of section 5 of the securities act of 1933, 15 u. In an aircraft having an upwardly open lift channel extending generally longitudinally of the aircraft, and a jet engine for inducing air flow in said channel in a rearward direction, wherein said upwardly open channel is formed in the wing of said aircraft and extends across said wing from the leading to the trailing edge thereof. Custers approach was based on the idea that it is the speed of the air over the wing, and not the wing through the air, which generates lift. In the channel wing, air pulled through the wing by the props combined with forward motion generated double the lift of a standard wing design, giving the aircraft very short takeoff and landing roll. The blown channel ccw includes a channel that has a rounded or nearround trailing edge. The custer channel wing is a wingpropeller arrangement designed to produce lift statically or to augment the normal lift when the vehicle has some forward velocity. Request pdf use of custer channel wingswing ducts on small uavs the strong variations in lift that occur with changes in forward speed. The 20knot humanpowered water craft hp is reprinting, in parts, alec brookspaper on highspeed hydrofoils, which was given at the third ihpva scientific symposium.
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