The Kolb Mark III is a family of

American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

side-by-side two seater, high wing,

strut-braced In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of strut, which act in ...

pusher configuration In an aircraft with a pusher configuration (as opposed to a tractor configuration), the propeller(s) are mounted behind their respective engine(s). Since a pusher propeller is mounted behind the engine, the drive shaft is in compression in nor ...

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 ...

-equipped

ultralight aircraft 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 ...

that is produced in kit form by

New Kolb Aircraft Kolb Aircraft Company is an American aircraft manufacturer that produces kitplanes for amateur construction.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page E-20, 21. Cybair Limited Publishing, 2001. Downey, Julia: ''1 ...

London, Kentucky London is a home rule-class city in Laurel County, Kentucky, in the United States. It is the seat of its county. The population was 7,993 at the time of the 2010 census. It is the second-largest city named "London" in the United States and the ...

, and intended for amateur construction.Vandermeullen, Richard: ''2011 Kit Aircraft Buyer's Guide'', Kitplanes, Volume 28, Number 12, December 2011, page 72. Belvoir Publications. ISSN 0891-1851Downey, Julia: ''1999 Kit Aircraft Directory'', Kitplanes, Volume 15, Number 12, December 1998, page 53. Primedia Publications. ISSN 0891-1851Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page B-88. Cybair Limited Publishing, 2001. Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook'', page 188. BAI Communications.

Design and development

The Mark III's standard engine was originally the

Rotax 582 The Rotax 582 is a two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG. It is for use in non-certified aircraft operating ...

engine, but the current engines offered 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 ...

or 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 ...

. In its home country the aircraft is normally licensed in the ''Experimental - amateur-built'' category. The design features a forward

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 ...

of welded

4130 steel 41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel (common ...

tubing, mated to an

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 ...

tailboom. The

horizontal stabilizer A tailplane, also known as a horizontal stabiliser, is a small lifting surface located on the tail (empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplan ...

, tail fin and wings are also constructed of riveted aluminum tubing with all flying surfaces 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 ...

. The wings and horizontal tail are quick-folding for storage and ground transport. The original Mark III can be made ready to fly from trailering in eight minutes by one person without the use of tools, while the newer M3X variant is rated at 15 minutes to assemble for flight. The landing gear is sprung tubing for the main gear, with a steerable sprung tailwheel and the cabin is in width. Factory options include brakes,

Ballistic Recovery Systems Ballistic Recovery Systems, Inc., doing business as BRS Aerospace (and commonly referred to as simply BRS), is a manufacturer of aircraft ballistic parachutes. The company was formed in 1980 by Boris Popov of Saint Paul, Minnesota, after he su ...

airframe parachute and

powder coating Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or ...

of the steel parts. The manufacturer describes the aircraft as

STOL A short takeoff and landing (STOL) aircraft is a conventional fixed-wing aircraft that has short runway requirements for takeoff and landing. Many STOL-designed aircraft also feature various arrangements for use on airstrips with harsh conditio ...

, with a take-off run.

Operational history

In reviewing the aircraft Andre Cliche said:

Variants

;Mark III :Two seats in side-by-side configuration, high wing ultralight, powered by a

Rotax 503 The Rotax 503 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. As of 2011 the Ro ...

Rotax 618 The Rotax 618 is a two-stroke, two-cylinder, liquid cooled, gear reduction-drive engine that was formerly manufactured by BRP-Rotax GmbH & Co. KG. It was designed for use on ultralight aircraft.Raisner, William: ''LEAF catalog'', pages 6-105. ...

engine. Variously marketed at different times as the ''Mark III'', ''Twinstar'' and ''Mark III Classic''. ;Mark III Xtra :Two seats in side-by-side configuration, high wing ultralight, powered by an

engine, the

or the

Jabiru 2200 The Jabiru 2200 is a lightweight naturally aspirated, pushrod four-stroke, flat four, air-cooled aircraft engine produced by Jabiru Aircraft. Design and development The conventional direct-drive engine is fitted with an alternator, silencers, ...

. The Xtra underwent an aerodynamic cleanup by aerodynamicist Barnaby Wainfan and was introduced in 1999. Variously marketed as the ''Mark III Xtra'' and the ''M3X''.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 124. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X

Specifications (Mark III)

References

External links