Direct Fly Alto Explained

The Direct Fly Alto (English: High) is a Czech ultralight and light-sport aircraft, 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.[1] [2] [3]

Design and development

The aircraft was designed to comply with the Fédération Aéronautique Internationale 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.[2]

The aircraft is constructed from aluminum sheet, with a wing that has a span of 8.11NaN1 and an area of 10.14m2. Standard engines available are the 800NaN0 Rotax 912UL, the 1000NaN0 Rotax 912ULS and the 1200NaN0 Jabiru 3300 four-stroke powerplants.[2]

A Magnum 501 rocket powered parachute system is under development for the aircraft.[4] [5]

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.[6] [7] [8]

In 2011 the design was accepted as a Federal Aviation Administration approved special light-sport aircraft.[2] [9]

The Alto NG replaced the original TG model in production in 2022.[6] [8]

Operational history

The aircraft was introduced to the US light sport market at the 2010 Sun 'n Fun airshow.

In July 2022 there were five Altos registered with the US Federal Aviation Administration.[10]

Variants

Alto TG
  • Tricycle landing gear version with a 472.50NaN0 gross weight.[11]
    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 6000NaN0 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.[8]

    Notes and References

    1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 40. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
    2. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 42. Flying Pages Europe SARL, 2015.
    3. Web site: Direct Fly s.r.o.. 9 September 2012.
    4. Czech Aviation 2012. Alto. 10.
    5. Web site: Plane and Pilot directory. 9 September 2012.
    6. Web site: Alto 912 TG. 19 July 2022. Direct Fly s.r.o.. Direct Fly sro. directfly.cz. 2022 . https://archive.today/20220719203014/https://directfly.cz/alto-912tg/?lang=en. 19 July 2022. live.
    7. Web site: Typové průkazy. 19 July 2022. Letecká amatérská asociace ČR. laacr.cz. https://archive.today/20220719202508/https://www.laacr.cz/stranky/odbornosti/ultralehke-letouny/typove-prukazy.aspx. 19 July 2022. live.
    8. Web site: Alto NG. 19 July 2022. Direct Fly s.r.o.. Direct Fly sro. directfly.cz. 2022 . https://archive.today/20220719203444/https://directfly.cz/alto-ng/?lang=en. 19 July 2022. live.
    9. Web site: SLSA Make/Model Directory. 9 February 2017. Federal Aviation Administration. Federal Aviation Administration. 26 September 2016.
    10. Web site: Make / Model Inquiry. 19 July 2022. Federal Aviation Administration. Federal Aviation Administration. 19 July 2022.
    11. Web site: Specifications. 31 May 2012. DirectFly. 2009.

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