The Direct Fly Alto ( en, High) is a Czech ultralight and

light-sport aircraft A light-sport aircraft (LSA), or light sport aircraft, is a fairly new category of small, lightweight aircraft that are simple to fly. LSAs tend to be heavier and more sophisticated than ultralight (aka "microlight") aircraft, but LSA restrictio ...

, designed and produced by Direct Fly sro of Hluk. The aircraft is supplied as a standard or quick-build kit for amateur construction or as a complete ready-to-fly-aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 40. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 42. Flying Pages Europe SARL, 2015.

Design and development

The aircraft was designed to comply with the

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 maintai ...

microlight class and US light-sport aircraft rules. It features a cantilever low-wing, a two-seats-in- side-by-side configuration enclosed cockpit, fixed tricycle landing gear or optionally conventional landing gear and a single engine in tractor configuration. The aircraft is constructed from aluminum sheet, with a wing that has a span of and an area of . Standard engines available are the Rotax 912UL, the Rotax 912ULS and the Jabiru 3300

four-stroke A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either directio ...

powerplants. A Magnum 501 rocket powered parachute system is under development for the aircraft. The Alto TG design was issued a Czech type certificate on 15 July 2008 and produced until 2022. The Alto NG replaced the original model in production in 2022. In 2011 the design was accepted as a Federal Aviation Administration approved special light-sport aircraft. The Alto NG replaced the original TG model in production in 2022.

Operational history

The aircraft was introduced to the US light sport market at the 2010

Sun 'n Fun Sun ’n Fun Aerospace Expo (officially styled SUN 'n FUN) is a nonprofit organization in Lakeland, Florida dedicated to the promotion of aviation education. It is best known for the annual week-long fly-in and airshow at Lakeland Linder Intern ...

airshow. In July 2022 there were five Altos

registered Registered may refer to: * Registered mail, letters, packets or other postal documents considered valuable and in need of a chain of custody * Registered trademark symbol, symbol ® that provides notice that the preceding is a trademark or service ...

with the US Federal Aviation Administration.

Variants

;Alto TG :Tricycle landing gear version with a gross weight. ;Alto TW :Tailwheel (conventional gear) model. ;Alto 100 :Version for the American light sport aircraft market. ;Alto NG :Improved "New Generation" version introduced in 2022. This model has a gross weight, strengthened nosewheel landing gear leg and fuselage, longer engine mount and cowling for the Rotax 912 ULS engine, plus uses push-pull tubes in place of control cables.

Specifications (Alto TG European ultralight)

References

External links