Direct Fly Alto
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The Direct Fly Alto ( en, High) is a
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' Places *Czech, ...
ultralight 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 ailer ...
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 Hluk (german: Hulken) is a town in Uherské Hradiště District in the Zlín Region of the Czech Republic. It has about 4,200 inhabitants. Etymology The name of Hluk is very likely derived from Latin word ''hlucium'' ( en, noise, cs, hluk). It pr ...
. 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 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 confi ...
, a two-seats-in-
side-by-side configuration Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction. The original use of the term in English was in ''tandem harness'', which is used for two ...
enclosed cockpit, fixed
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 g ...
or optionally
conventional landing gear Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Term ...
and a single engine in
tractor configuration In aviation, the term tractor configuration refers to an aircraft constructed in the standard configuration with its engine mounted with the propeller in front of it so that the aircraft is "pulled" through the air. Oppositely, the pusher c ...
. The aircraft is constructed from
aluminum Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has ...
sheet, with a wing that has a span of and an area of . Standard engines available are the
Rotax 912UL The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, late ...
, the
Rotax 912ULS The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, late ...
and the
Jabiru 3300 The Jabiru 3300 is a lightweight four-stroke, horizontally opposed "flat-six" air-cooled aircraft engine produced by Jabiru Aircraft. The engines are direct drive and fitted with alternators, silencers, vacuum pump drives and dual ignition syst ...
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 A type certificate signifies the airworthiness of a particular category of aircraft, according to its manufacturing design (''type design''). It confirms that the aircraft of a new type intended for serial production, is in compliance with applica ...
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 The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic m ...
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 with the US
Federal Aviation Administration The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic m ...
.


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 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 ...
, longer engine mount and cowling for the
Rotax 912 ULS The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, later ...
engine, plus uses push-pull tubes in place of control cables.


Specifications (Alto TG European ultralight)


See also


References


External links

* {{DirectFly aircraft 2000s Czech ultralight aircraft Homebuilt aircraft Light-sport aircraft Single-engined tractor aircraft Direct Fly sro aircraft