Strojnik S-2 Explained

The Strojnik S-2 is an American high-wing, single-seat motor glider that was designed and built by Aleš Strojnik.[1] [2] [3]

Design and development

Strojnik completed and flew his S-2 design in 1980.

The S-2 is of mixed construction. The 49.20NaN0 span wings consist of fiberglass skins built around a carbon fiber and aluminium spars. The wings employ a Wortmann FX 67-170/17 airfoil and have flaps for glidepath control. The wings are a constant chord design, with tapered wing tips. The fuselage is a pod-and-boom design, with the cockpit area made from wood, covered in fiberglass and the tail boom made from aluminium. The tail surfaces are of carbon fiber structure, covered in fiberglass. The powerplant is a Kohler Company engine of 280NaN0 that drives a folding two-bladed propeller. The engine is mounted in pusher configuration behind the cockpit, with the tail boom running underneath the propeller. The landing gear consists of two small wheels mounted in tandem on the fuselage centerline.[4]

A two-seat version with the same external dimensions was reportedly under development in 1983.

Strojnik reported that 22 sets of plans had been sold by 1983.

Operational history

Strojnik earned his silver badge flying the S-2. The prototype S-2 is no longer on the Federal Aviation Administration registry, but at least eight were built and in July 2011 six remain on the US register, including three S-2s and three S-2As.

Variants

S-2
  • Initial version
    S-2A
  • Improved version
    S-4 "Laminar Magic"
  • One-off, registration number N85AS. Smaller, short-wing version, which set a US national aviation speed record in FAI Category C-1a/0 (European microlight, under 300kg gross weight) in 1987.[5] [6]
    S-5
  • One-off aircraft, registration number N51152.[7] Added slightly greater wingspan to existing S-4 fuselage for better performance in recreational flying.

    External links

    Notes and References

    1. Web site: S-2 Strojnik. 30 July 2011. Activate Media. 2006. dead. https://web.archive.org/web/20020629015841/http://www.sailplanedirectory.com/PlaneDetails.cfm?planeID=281. 29 June 2002.
    2. Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 133. Soaring Society of America, November 1983. USPS 499-920
    3. Web site: Make / Model Inquiry Results. 30 July 2011. Federal Aviation Administration. July 2011.
    4. Web site: The Incomplete Guide to Airfoil Usage. 30 July 2011. Lednicer. David. 2010. April 20, 2010. https://web.archive.org/web/20100420012244/http://www.ae.illinois.edu/m-selig/ads/aircraft.html. dead.
    5. Web site: Aerospace engineering at Reaction Research. www.reactionresearch.com. 16 January 2015.
    6. News: Sport Aviation. Nov 1989. Experimental Aviation Association. 10 Nov 1989.
    7. Web site: N-Number Inquiry Results - N51152. 19 January 2015. Federal Aviation Administration. 19 January 2015.

    This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Strojnik S-2".

    Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.