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DTA Diva
The DTA Diva is a French double-surface ultralight trike wing, designed and produced by DTA sarl of Montélimar and introduced in 2009. The wing is widely used on DTA trikes as well as by other ultralight aircraft manufacturers.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', pages 208-210. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X Design and development The Diva is a cable-braced, king post-equipped hang glider-style wing designed as a touring wing for two-place trikes. It comes in one size with a wing area of . The wing is comparatively small in area, which gives a higher cruise speed at the cost of a higher stall speed. The wing is made from bolted-together aluminum tubing, with its 84% double surface wing covered in Dacron sailcloth. The wing's crosstube is of a floating design. Its span wing has a nose angle of 130°, an aspect ratio of 5.2:1 and uses an "A" frame weight-shift control bar. The wing tips feature small winglets. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stall Speed
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 thru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DTA Feeling
The DTA Feeling is a French ultralight trike, designed and produced by DTA sarl of Montélimar. The aircraft is supplied complete and ready-to-fly.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 210. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X Design and development The aircraft has a great deal of parts commonality with the DTA Evolution, but includes a cockpit fairing, windshield, panniers, and a standard instrumentation package. The Feeling was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of . The aircraft has a maximum gross weight of . It features a cable-braced hang glider-style DTA Diva high-wing, weight-shift controls, a two-seats-in- tandem open cockpit, tricycle landing gear with wheel pants and a single engine in pusher configuration. The aircraft is made from bolted-together aluminum tubing, with its double surface w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DTA Evolution
The DTA Evolution is a French ultralight trike, designed and produced by DTA sarl of Montélimar. The aircraft is supplied as a complete ready-to-fly-aircraft.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 98. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X Design and development The aircraft was designed as a simple trike, with an exceptional payload, to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of . The aircraft has a maximum gross weight of . It features a cable-braced hang glider-style high-wing, weight-shift controls, a two-seats-in- tandem open cockpit without a cockpit fairing, tricycle landing gear with wheel pants and a single engine in pusher configuration. The aircraft is made from bolted-together aluminum tubing, with its single surface wing covered in Dacron sailcloth. Its span DTA Dynamic 16 wing is supported by a single tube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DTA Combo
The DTA Combo is a French ultralight trike, designed by Dominique Corriera and produced by DTA sarl of Montélimar. The aircraft is supplied complete and ready-to-fly.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 208. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X Design and development The Combo was designed to comply with the Fédération Aéronautique Internationale microlight category. It features a cable-braced or strut-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem open cockpit with a full cockpit fairing and windshield, tricycle landing gear with wheel pants and a single engine in pusher configuration. The aircraft is made from welded 4130 steel tubing, with Zicral alloy suspension. Its double surface wing is covered in Dacron sailcloth. A number of different wings and engines can be fitted to create several variants. Variants ;Combo FC 912 S Diva :Version with the span DTA Diva wing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Société Ellipse
Ellipse is a French aircraft manufacturer, located in Étuz. The company specializes in building hang gliders and ultralight trikes.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 43. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X The company also builds the DTA Diva, DTA Dynamic and DTA Magic ultralight trike wings under contract to DTA sarl DTA sarl (Delta Trikes Aviation) is a French aircraft manufacturer based in Montélimar. The company specializes in the design and manufacture of ultralight trikes.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2 ....Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 208-210. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X Aircraft References External links * {{Ellipse aircraft Aircraft manufacturers of France Hang gliders Ultralight trikes Companies based in Bourgogne-Franche-Comté ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winglet
Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft's drag by partial recovery of the tip vortex energy. Wingtip devices can also improve aircraft handling characteristics and enhance safety for following aircraft. Such devices increase the effective aspect ratio of a wing without greatly increasing the wingspan. Extending the span would lower lift-induced drag, but would increase parasitic drag and would require boosting the strength and weight of the wing. At some point, there is no net benefit from further increased span. There may also be operational considerations that limit the allowable wingspan (e.g., available width at airport gates). Wingtip devices help prevent the flow around the wingtip of higher pressure air under the wing flowing to the lower pressure surface on top at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspect Ratio (wing)
In aeronautics, the aspect ratio of a wing is the ratio of its span to its mean chord. It is equal to the square of the wingspan divided by the wing area. Thus, a long, narrow wing has a high aspect ratio, whereas a short, wide wing has a low aspect ratio.Kermode, A.C. (1972), ''Mechanics of Flight'', Chapter 3, (p.103, eighth edition), Pitman Publishing Limited, London Aspect ratio and other features of the planform are often used to predict the aerodynamic efficiency of a wing because the lift-to-drag ratio increases with aspect ratio, improving the fuel economy in powered airplanes and the gliding angle of sailplanes. Definition The aspect ratio \text is the ratio of the square of the wingspan b to the projected wing area S, which is equal to the ratio of the wingspan b to the standard mean chord \text: \text \equiv \frac = \frac Mechanism As a useful simplification, an airplane in flight can be imagined to affect a circular cylinder of air with a diameter equal to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dacron
Polyethylene terephthalate (or poly(ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, and thermoforming for manufacturing, and in combination with glass fibre for engineering resins. In 2016, annual production of PET was 56 million tons. The biggest application is in fibres (in excess of 60%), with bottle production accounting for about 30% of global demand. In the context of textile applications, PET is referred to by its common name, polyester, whereas the acronym ''PET'' is generally used in relation to packaging. Polyester makes up about 18% of world polymer production and is the fourth-most-produced polymer after polyethylene (PE), polypropylene (PP) and polyvinyl chloride (PVC). PET consists of repeating (C10H8O4) units. PET is commonly recycled, and has the digit 1 (♳) as its resin identification code (RIC). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminum
Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has a great affinity towards oxygen, and forms a protective layer of oxide on the surface when exposed to air. Aluminium visually resembles silver, both in its color and in its great ability to reflect light. It is soft, non-magnetic and ductile. It has one stable isotope, 27Al; this isotope is very common, making aluminium the twelfth most common element in the Universe. The radioactivity of 26Al is used in radiodating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ is small and highly charged; as such, it is polarizing, and bonds aluminium forms tend towards covalency. The strong affinity towards ox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hang Glider
Hang gliding is an air sport or recreational activity in which a pilot flies a light, non-motorised foot-launched heavier-than-air aircraft called a hang glider. Most modern hang gliders are made of an aluminium alloy or composite frame covered with synthetic sailcloth to form a wing. Typically the pilot is in a harness suspended from the airframe, and controls the aircraft by shifting body weight in opposition to a control frame. Early hang gliders had a low lift-to-drag ratio, so pilots were restricted to gliding down small hills. By the 1980s this ratio significantly improved, and since then pilots have been able to soar for hours, gain thousands of feet of altitude in thermal updrafts, perform aerobatics, and glide cross-country for hundreds of kilometers. The Federation Aeronautique Internationale and national airspace governing organisations control some regulatory aspects of hang gliding. Obtaining the safety benefits of being instructed is highly recommended and indeed a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft/page Content
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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