The Quasar Relief is a series of

Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus *Czech (surnam ...

high-wing A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple wings. A monoplane has inherently the highest efficiency and lowest drag of any wing config ...

, single-place, topless, competitions

hang glider Hang gliding is an air sport or recreational activity in which a pilot flies a light, non-motorised, fixed-wing heavier-than-air aircraft called a hang glider. Most modern hang gliders are made of an aluminium alloy or composite frame covered ...

s that was designed and produced by

Quasar A quasar ( ) is an extremely Luminosity, luminous active galactic nucleus (AGN). It is sometimes known as a quasi-stellar object, abbreviated QSO. The emission from an AGN is powered by accretion onto a supermassive black hole with a mass rangi ...

Dolní Bečva Dolní Bečva is a municipality and village in Vsetín District in the Zlín Region of the Czech Republic. It has about 1,900 inhabitants. Geography Dolní Bečva is located about northeast of Vsetín and south of Ostrava. It lies on the border ...

. The aircraft is supplied complete and ready-to-fly.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 47. Pagefast Ltd, Lancaster OK, 2003.

Design and development

The Relief is made from

aluminum Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...

tubing, with the cross tube and battens made from

carbon fibre Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers ( Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon comp ...

and the double-surface wing covered in

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 ...

sailcloth. The nose angle for all models is 132°. The models are each named for their rough wing area in square metres. The design is "topless", that is lacking a kingpost and upper rigging, instead using a reinforced cross tube for rigidity. Some models, designated with an "RX" suffix, have a small

horizontal stabilizer A tailplane, also known as a horizontal stabilizer, is a small lifting surface located on the tail ( empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplan ...

attached to the keel tube that can be deployed 90° to act as a

speed brake In aeronautics, air brakes, or speed brakes, are a type of flight control surface used on an aircraft to increase the drag on the aircraft. When extended into the airstream, air brakes cause an increase in the drag on the aircraft. When n ...

for landing.

Variants

;Relief 13 :Small-sized model for lighter pilots. Its span wing has a wing area of and an

aspect ratio The aspect ratio of a geometry, geometric shape is the ratio of its sizes in different dimensions. For example, the aspect ratio of a rectangle is the ratio of its longer side to its shorter side—the ratio of width to height, when the rectangl ...

of 8:4:1. ;Relief 13 RX :Small-sized model for lighter pilots. Its span wing has a wing area of and an aspect ratio of 8.0:1. The pilot hook-in weight range is . This model has a small horizontal stabilizer attached to the keel tube that can be deployed 90° to act as a speed brake. ;Relief 14 :Mid-sized model for mid-weight pilots. Its span wing has a wing area of and an aspect ratio of 7.7:1. The pilot hook-in weight range is . ;Relief 14 RX :Mid-sized model for mid-weight pilots. Identical to the 14, except this model has a small horizontal stabilizer attached to the keel tube that can be deployed 90° to act as a speed brake. ;Relief 15 :Large-sized model for heavy-weight pilots. Its span wing has a wing area of and an aspect ratio of 7.2:1. The pilot hook-in weight range is .

Specifications (Relief 13)

References

External links

* {{Quasar aircraft

Relief Relief is a sculpture, sculptural method in which the sculpted pieces remain attached to a solid background of the same material. The term ''wikt:relief, relief'' is from the Latin verb , to raise (). To create a sculpture in relief is to give ...

Hang gliders