The Australian Lightwing SP-4000 Speed is an Australian

kit 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 and produced by Australian Lightwing of

Ballina, New South Wales Ballina () is a town in the Northern Rivers region of New South Wales, Australia, and the seat of the Ballina Shire local government area. It lies north of Sydney and south of Brisbane. Ballina's urban population at the end of 2021 was 46,19 ...

. The aircraft is supplied as a kit for amateur construction.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 29. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 31. Flying Pages Europe SARL, 2015.

Design and development

The aircraft was developed from the two-seat SP-2000 Speed and 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 wings. A monoplane has inherently the highest efficiency and lowest drag of any wing config ...

, a four-seat enclosed cockpit, fixed

tricycle landing gear Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', that is arranged in a tricycle fashion. The tricycle arrangement has one or more nose wheels in a single front undercarriage and two or more main wheels slightly aft of th ...

and a single engine in

tractor configuration In aviation, a tractor configuration is a propeller-driven fixed-wing aircraft with its engine mounted with the propeller in front, so that the aircraft is "pulled" through the air. This is the usual configuration; the pusher configuration ...

. The aircraft

fuselage The fuselage (; from the French language, French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds Aircrew, crew, passengers, or cargo. In single-engine aircraft, it will usually contain an Aircraft engine, engine as wel ...

is made from welded steel tubing covered in non-structural

fibreglass Fiberglass (American English) or fibreglass ( Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass c ...

. Its span wing is built from

6061-T6 aluminum 6061 aluminium alloy (Unified numbering system, Unified Numbering System (UNS) designation A96061) is a precipitation hardening, precipitation-hardened aluminium alloy, containing magnesium and silicon as its major alloying elements. Originally ...

covered in doped

aircraft fabric Aircraft fabric covering is a term used for both the material used and the process of covering aircraft open structures. It is also used for reinforcing closed plywood structures. The de Havilland Mosquito is an example of this technique, as are ...

and fibreglass. Standard engines recommended are the

Lycoming O-320 The Lycoming O-320 is a large family of naturally aspirated, air-cooled, flat four engine, horizontally-opposed four-cylinder, direct-drive engines produced by Lycoming Engines. Introduced in 1953, it is commonly used on light aircraft such a ...

or the

Lycoming O-360 The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines. Engines in the O-360 series produce between , with the basic O-360 producing . The engine family has been installed in ...

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, along with similar

Continental Motors, Inc. Continental Aerospace Technologies is an aircraft engine manufacturer located at the Brookley Aeroplex in Mobile, Alabama, United States. It was originally spun off from automobile engine manufacturer Continental Motors Company in 1929 and ow ...

or auto-conversions. Cockpit access is via gull-winged doors on both sides.

Wheel pants An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag.Crane, Dale: ''Dictionary of Aeronautical Terms, Third Edition'', page 206. Aviation Supplies & Academics Inc, Newcastle Washington, 1997. ...

are usually fitted.

Specifications (SP-4000 Speed)

References

External links

* {{Australian Lightwing aircraft Homebuilt aircraft Single-engined tractor aircraft Australian Lightwing aircraft