The Schleicher K 10 is a Standard class competition

glider Glider may refer to: Aircraft and transport Aircraft * Glider (aircraft), heavier-than-air aircraft primarily intended for unpowered flight ** Glider (sailplane), a rigid-winged glider aircraft with an undercarriage, used in the sport of glidin ...

, designed by

Rudolf Kaiser Rudolf Kaiser (10 September 1922 – 11 September 1991) was a designer of gliders who worked for Alexander Schleicher GmbH & Co. The designs of Rudolf Kaiser have proven themselves for over 50 years all over the world. His designs for Schleiche ...

and built in

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

in 1963. Only a few were produced.

Design and development

The K 10 is a

cantilever A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a canti ...

shoulder wing A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplane (aeronautics), multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowe ...

glider with a single

spar SPAR, originally DESPAR, styled as DE SPAR, is a Dutch multinational that provides branding, supplies and support services for independently owned and operated food retail stores. It was founded in the Netherlands in 1932, by Adriaan van Well, ...

wing built from

pine A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accep ...

and

plywood Plywood is a material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. It is an engineered wood from the family of manufactured ...

. Its covering is mostly

fabric Textile is an umbrella term that includes various fiber-based materials, including fibers, yarns, filaments, threads, different fabric types, etc. At first, the word "textiles" only referred to woven fabrics. However, weaving is not the ...

but

glass fibre Glass fiber ( or glass fibre) is a material consisting of numerous extremely fine fibers of glass. Glassmakers throughout history have experimented with glass fibers, but mass manufacture of glass fiber was only made possible with the inventio ...

is used in places where the surface has double curvature.

Airfoil An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of an object whose motion through a gas is capable of generating significant lift, such as a wing, a sail, or the blades of propeller, rotor, or turbine. ...

s by Professor Franz Wortmann replaced the NACA 63 series profiles of the successful

Schleicher Ka 6 The Schleicher Ka 6 is a single-seat glider designed by Rudolf Kaiser, built by Alexander Schleicher GmbH & Co, Germany and is constructed of spruce and plywood with fabric covering. The design initially featured a conventional tailplane and e ...

with the intention of producing higher speeds. The

leading edge The leading edge of an airfoil surface such as a wing is its foremost edge and is therefore the part which first meets the oncoming air.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 305. Aviation Supplies & Academics, ...

is straight and unswept, but a swept

trailing edge The trailing edge of an aerodynamic surface such as a wing is its rear edge, where the airflow separated by the leading edge meets.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 521. Aviation Supplies & Academics, 1997. ...

produces a forward sweep at quarter chord of 1.2°. There is 3° of dihedral. The taper increases slightly on the outer wing panels, where ply covered

ailerons An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in Flight dynamics, roll (or ...

are hinged on the upper wing surfaces.

Schempp-Hirth Schempp-Hirth Flugzeugbau GmbH is a glider manufacturer based in Kirchheim unter Teck, Germany. History Martin Schempp founded his own company in Göppingen in 1935, with the assistance of Wolf Hirth. The company was initially called "Sportfl ...

airbrakes are fitted inboard. Its

fuselage The fuselage (; from the French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft t ...

is a ply shell formed around wooden bulkheads and stringers and again GRP is used for areas with double curvature. The

cockpit A cockpit or flight deck is the area, usually near the front of an aircraft or spacecraft, from which a Pilot in command, pilot controls the aircraft. The cockpit of an aircraft contains flight instruments on an instrument panel, and the ...

is enclosed by a moulded

Perspex Poly(methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Plexiglas, Acrylite ...

canopy Canopy may refer to: Plants * Canopy (biology), aboveground portion of plant community or crop (including forests) * Canopy (grape), aboveground portion of grapes Religion and ceremonies * Baldachin or canopy of state, typically placed over an a ...

. The tail surfaces are straight tapered and built in the same way as the wings. It has all-moving elevators mounted on the

fin A fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids. Fin ...

at the top of the fuselage, far enough forward that only a small cut out was required for movement of the fabric covered

rudder A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, aircraft, or other vehicle that moves through a fluid medium (generally aircraft, air or watercraft, water). On an aircraft the rudder is used primarily to ...

, which extends down to the keel. The K 10 has a fixed, semi-recessed monowheel undercarriage assisted by a tail skid. The K 10 made its first flight in August 1963. The Wortmann profiles did improve high speed performance but the K 10 lost the excellent low-speed handling characteristics of the Ka 6, so only twelve K 10s were built and Kaiser's attention turned to producing an improved Ka 6, the Ka 6E, which adopted the all-moving tailplane of the K 10 but used the earlier NACA airfoils. Three K 10s remained on the German civil aircraft register in 2010. A

Swiss Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri * Swiss, North Carolina *Swiss, West Virginia * Swiss, Wisconsin Other uses *Swiss-system tournament, in various games and sports *Swiss Internation ...

registered K 10 crashed fatally in 1999.

Specifications

References

{{Schleicher 1960s German sailplanes K 10 Shoulder-wing aircraft Aircraft first flown in 1963

Design and development

Specifications

See also

References