The Ellipse Twist is a French
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,
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 ...
designed and produced by
La société Ellipse of
Étuz.
[Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 43. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X]
Design and development
The Twist was designed as a beginner hang glider and is built in three sizes.
Typical of the series, the Twist 15 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 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. Its span wing, uses a single tube-style
kingpost and upper
flying wires
In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of struts, which act in ...
. The nose angle is 120° and the
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 ...
is 6.5:1. The model number indicates the approximate wing area in square metres.
Variants
;Twist 13
:Small sized model with a wing area of , wing span of , aspect ratio of 6.5:1 and a pilot hook-in weight range of .
;Twist 15
:Medium sized model with a wing area of , wing span of , aspect ratio of 6.5:1 and a pilot hook-in weight range of .
;Twist 16
:Medium sized model with a wing area of , wing span of , aspect ratio of 6.2:1 and a pilot hook-in weight range of .
Specifications (Twist 15)
References
External links
*
{{Ellipse aircraft
Hang gliders