The Cosmos Echo is a French single-seat,

ultralight trike An ultralight trike is a type of powered hang glider where flight control is by weight-shift control, weight-shift. These light-sport aircraft, aircraft have a fabric Rogallo wing, flex-wing from which is suspended a tricycle fuselage pod driven ...

that is produced by

Cosmos ULM Cosmos ULM (Ultra Léger Motorisé, en, Motorized Ultralight), also called Cosmos Ultralight SA de CV, is an ultralight trike aircraft manufacturer that was originally based in Fontaine-lès-Dijon, France. Its aircraft are supplied as factory co ...

. The aircraft is only supplied as a completed aircraft and is not available as a

kit Kit may refer to: Places *Kitt, Indiana, US, formerly Kit * Kit, Iran, a village in Mazandaran Province * Kit Hill, Cornwall, England People * Kit (given name), a list of people and fictional characters * Kit (surname) Animals * Young animals: ...

.Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 97. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485XPurdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook'', page 142. BAI Communications.

Design and development

The Echo was designed to comply with the European

Fédération Aéronautique Internationale The (; FAI; en, World Air Sports Federation) is the world governing body for air sports, and also stewards definitions regarding human spaceflight. It was founded on 14 October 1905, and is headquartered in Lausanne, Switzerland. It mainta ...

microlight Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with aile ...

classification and has been used in microlight competition flying. It features a cable-braced

hang glider Hang gliding is an air sports, 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 ma ...

-style

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 planes. A monoplane has inherently the highest efficiency and lowest drag of any wing conf ...

, weight-shift controls, a single-seat, open cockpit,

tricycle landing gear Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', arranged in a tricycle fashion. The tricycle arrangement has a single nose wheel in the front, and two or more main wheels slightly aft of the center of gravity. Tricycle ...

and a single engine in

pusher configuration In an aircraft with a pusher configuration (as opposed to a tractor configuration), the propeller(s) are mounted behind their respective engine(s). Since a pusher propeller is mounted behind the engine, the drive shaft is in compression in no ...

. The aircraft wing is made from bolted-together

aluminium Aluminium (aluminum in AmE, American and CanE, Canadian English) is a chemical element with the Symbol (chemistry), symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately o ...

tubing, with its 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 food ...

sailcloth. A number of different wings can be fitted, including the Top 12.9. The wing is supported by a single tube-type

kingpost A king post (or king-post or kingpost) is a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above (whereas a crown post, though visually similar, supports items above f ...

and uses an "A" frame control bar. Optional equipment includes a

cockpit fairing An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag.Crane, Dale: ''Dictionary of Aeronautical Terms, Third Edition'', page 206. Aviation Supplies & Academics Inc, Newcastle Washington, 1997. ...

and

wheel pants An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag.Crane, Dale: ''Dictionary of Aeronautical Terms, Third Edition'', page 206. Aviation Supplies & Academics Inc, Newcastle Washington, 1997. ...

. Engines used are the

Rotax 503 The Rotax 503 is a , inline 2-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.Raisner, William: ''LEAF catlog'', pages 6-105. Leading Edge Airfoils, 1995. As of 2011 the R ...

twin cylinder,

two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of t ...

and

Rotax 447 The Rotax 447 is a , inline 2-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.Raisner, William: ''LEAF catlog'', pages 6-105. Leading Edge Airfoils, 1995. Design and development ...

powerplants

Variants

;Echo 12 :With the

twin cylinder,

engine and the Top 12.9 wing. ;Echo Fun :With the

twin cylinder, two-stroke engine. ;Echo Racer :With the Rotax 503 twin cylinder, two-stroke engine.

Specifications (Echo Racer)

References

External links

*
Photo of a Cosmos Echo
{{Cosmos ULM aircraft 1990s French ultralight aircraft Single-engined pusher aircraft Ultralight trikes