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The Spacek SD-1 Minisport 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, ...
amateur-built aircraft Homebuilt aircraft, also known as amateur-built aircraft or kit planes, are constructed by persons for whom this is not a professional activity. These aircraft may be constructed from "scratch", from plans, or from assembly kits.Armstrong, Kenn ...
, designed by Igor Špaček and produced by Spacek sro of Hodonin. The aircraft was also produced for a short time in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
by SkyCraft Airplanes of
Orem, Utah Orem is a city in Utah County, Utah, United States, in the northern part of the state. It is adjacent to Provo, Lindon, and Vineyard and is approximately south of Salt Lake City. Orem is one of the principal cities of the Provo-Orem, Utah Me ...
as a
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 ...
, but they had gone out of businesses by 2017. The aircraft is supplied in the form of plans, as a kit for amateur construction, or as a ready-to-fly aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 120. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 127. Flying Pages Europe SARL, 2015.


Design and development

The aircraft 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 single-seat enclosed cockpit, fixed
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 ...
or optionally
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 ...
, a
T-tail A T-tail is an empennage configuration in which the tailplane is mounted to the top of the fin. The arrangement looks like the capital letter T, hence the name. The T-tail differs from the standard configuration in which the tailplane ...
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 ...
. Due to its very light weight it can qualify for the German 120 kg category. It complies with the United Kingdom SSDR rules for single seat deregulated microlight aeroplanes. The aircraft is made from wood, with judicious use of composites, including for the
wing spar In a fixed-wing aircraft, the spar is often the main structural member of the wing, running spanwise at right angles (or thereabouts depending on wing sweep) to the fuselage. The spar carries flight loads and the weight of the wings while on t ...
. Its span wing employs an A315
airfoil An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of an object whose motion through a gas is capable of generating significant lift, such as a wing, a sail, or the blades of propeller, rotor, or turbine. ...
, has an area of and utilizes
flaperon A flaperon (a portmanteau of flap and aileron) on an aircraft's wing is a type of control surface that combines the functions of both flaps and ailerons. Some smaller kitplanes have flaperons for reasons of simplicity of manufacture, while ...
s. Engines of can be used. Standard engines tested are the
Hirth F33 The Hirth F-33 is a single cylinder, two stroke, carburetted aircraft engine designed for use on ultralight aircraft, including powered paragliders and ultralight trikes. the engine is noted for its extremely light base weight of . It is ma ...
, the Hirth F23
two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of ...
s, the or
Briggs & Stratton Vanguard The Briggs & Stratton Vanguard Big Block V-Twin is a series of American piston engines, designed and produced by Briggs & Stratton of Wauwatosa, Wisconsin for use in commercial applications. They have also been adapted for use as ultralight airc ...
(designated SE24), or the
Verner JCV-360 The Verner JCV 360 is a Czech aircraft engine, designed and built by Verner Motor of Šumperk for use in ultralight aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', pages 242-243. WDLA UK, Lancaste ...
powerplants. The
Rotax 447 The Rotax 447 is a , inline 2-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.Raisner, William: ''LEAF catlog'', pages 6-105. Leading Edge Airfoils, 1995. Design and development ...
,
Hirth 2702 The Hirth 2702 and 2703 are a family of in-line twin cylinder, two stroke, carburetted aircraft engines designed for use on ultralight aircraft and especially two seat ultralight trainers, single seat gyrocopters, and small homebuilts. It ...
,
Zanzottera MZ 201 The Zanzottera MZ 201 and MZ 202 are a family of twin-cylinder, in-line two-stroke, dual ignition aircraft engines designed for ultralight aircraft and motor gliders.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G ...
,
Simonini Victor 1 Super The Simonini Victor 1 Super is an Italian aircraft engine, designed and produced by Simonini Racing of San Dalmazio di Serramazzoni for use in ultralight aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation ...
, 2si 460 and
Half VW The Volkswagen air-cooled engine is an air-cooled, gasoline-fuelled, boxer engine with four horizontally opposed cast-iron cylinders, cast aluminum alloy cylinder heads and pistons, magnesium-alloy crankcase, and forged steel crankshaft and con ...
can also be used. By November 2015 113 had been sold worldwide and about 41 were flying. At the end of May 2014 SkyCraft Airplanes announced that light-sport flight testing on its version had been completed. Their model has a revised cockpit, including
Dynon SkyView Dynon is a surname. Notable people with the surname include: *Denis Dynon Denis Dynon VC (September 1822 – 16 February 1863) was an Irish recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of th ...
instrumentation, a hydraulic brake system and the Hirth F-23 two-stroke fuel-injected engine. The company's intention was that 12 aircraft would be built for the first production run. However, as of 7 August 2017 the SD-1 was still not on the
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 ...
's list of accepted light-sport aircraft.


Variants

;SD-1 TD :Conventional landing gear (taildragger) version ;SD-1 TG :Tricycle gear version ;SD-1 TD XL :Conventional landing gear (taildragger) version for taller pilots ;SD-1 TG XL :Tricycle gear version for taller pilots ;SD-2 SportMaster : 2-seat tricycle gear version


Accidents

In September 2013, during a test and evaluation flight of the sole example flying in the United States, the pilot lost control while flying aerobatics not approved for the aircraft type and the aircraft crashed. The
ballistic parachute A ballistic parachute, ballistic reserve parachute, or emergency ballistic reserve parachute, is a parachute ejected from its casing by a small explosion, much like that used in an ejection seat. The advantage of the ballistic parachute over a co ...
did not deploy properly, most likely due to be out of limits for deployment, and the pilot was killed.


Specifications (SD-1)


See also

;Similar aircraft * Mini Coupe *
Sonex Aircraft Onex The Onex (pronounced "One-X" ) is an American single-seat, low-wing aircraft first flown on 27 January 2011 and currently being produced by Sonex Aircraft as a kit for amateur construction.Tacke, Willi; Marino Boric; et al: ''World Directory of ...
*
Corby Starlet __NOTOC__ The Corby CJ-1 Starlet is a single seat, amateur-built aeroplane designed in the 1960s by Australian aeronautical engineer John Corby.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 98. WD ...
*
Pazmany PL-4 __NOTOC__ The Pazmany PL-4A is a single-seat, single-engine sport aircraft developed in the United StatesTaylor 1989, p.717 and first flown in 1972.''Jane's All the World's Aircraft 1985–86'', p.608 It is marketed for homebuilding from plans, ...
*
Mooney M-18 Mite The Mooney M-18 "Mite" is a low-wing, single-place monoplane with retractable, tricycle landing gear.M.R. Montgomery & Gerald Foster: ''A Field Guide to Airplanes - Second Edition'', p. 46. Houghton Milflin Company 1992. Plane and Pilot: ''19 ...


References


External links

*{{Official website, http://sdplanes.com/ Homebuilt aircraft Single-engined tractor aircraft