Kolb Aircraft in the United States produced a number of ultra-light aircraft designs. These include the Firefly with a 31-kw (42-hp) Rotax 447 engine; Kolbra with a 48-kw (65-hp) Rotax 582 and a STOL variant with a 60-kw (80-hp) Jabiru 2200 engine.

Leichtflugzeugbau Klemm Gmbh of Boblingen, Wurtemberg, was the successor to the Daimler-Werke AG which first produced light aircraft in 1919.

The Klemm L 26 was one of a series of light aircraft produced at the conclusion of World War I.

The Klemm L-32 series was introduced to the Klemm range of light aircraft in 1933, being a three-seat light touring aircraft designed by Dr Ing Hans Klemm.

In 1933 the Kl 31 was introduced to the Klemm range of light aircraft. It was a low-wing cantilever monoplane of typical Klemm construction, the wing having two spruce spars and plywood covering from the nose to the rear spar on both sides of the wing.

The Klemm Kl 25 series of light, low-wing cantilever monoplanes with an open cockpit was the first aircraft manufactured by Leicht Flugzeugbau Klemm.

Daniel Denney of Denny Aerocraft over the years has developed a number of light aircraft for recreational use, most able to be fitted with a tailwheel, tricycle undercarriage, and may be fitted with skis or floats.

This aircraft stemmed in 1998 from a series of light aircraft designed by Dan Denney. The Lite was an ultralight trainer aimed as the US Sports Pilot Program. It has been produced in kit form and is available in tricycle undercarriage configuration.

In 1954 the need was seen by Kingsford Smith Aviation Services Pty Ltd of Bankstow, NSW for a large, high powered, agricultural aircraft of simple construction to replace the de Havilland Tiger Moth then in widespread use.

The KS-3 agricultural aircraft was the forerunner of the Yeoman Cropmaster, and was built at Bankstown, NSW, by Kingsford Smith Aviation Services in the 1950s.

The Kingsmith was a further effort by Kingsford Smith Aviation Service of Bankstown, NSW to modernize the Auster series of aircraft, in this case using an Auster J-1 Autocrat for the conversion.

In 1959 Bankstown, NSW based Kingsford Smith Aviation Service Pty Ltd set up a company, Austerserve Pty Ltd, to modify and improve Austers imported from the United Kingdom.

The Sky-Rider was an ultra-light aircraft designed by Gareth Kimberley in 1978, he at that time being employed by Qantas as a Boeing 747 Captain and had an interest in hang gliding.

The Homebuilt 12 is a development by Jim Kimball Enterprises Inc of Zellwood, Florida to make the Pitts S-2 Special series into a more powerful aircraft for unlimited aerobatics to compete against other types of aircraft in this category.

Ken Brock Manufacturing Inc of Stanton, California since 1957 has been building a series of single-seat open frame gyroplanes, models including the KB-2 and KB-3. Similar in appearance to the Bensen series, which first became available in 1953, a number of refinements were made to that design including a modified

The Kawasaki KV-107 was a licence-built version of the Boeing Vertol Model 107 which had been supplied to the US and other military forces as the H-46 Sea Knight and which had been produced in a variety of models to meet a number of operational needs. In 1965 Kawasaki acquired

In February 1940 Kawasaki Kokuki Kogyo KK was asked to design a fighter around the licence built Daimler-Benz DB 601A twelve-cylinder VEE engine, and to this end the Ki-60 evolved, the prototype flying in March 1941. Initial trials were not particularly successful, and the aircraft was redesigned as the Ki.61

In 1937 the Japanese Army sought an aircraft manufacturer to provide a design for a high-performance twin-engine light bomber with a crew of four, and Kawasaki Kokuki Kogyo K with a team lead by Takeo Doi, provided a design for a cantilever mid-wing monoplane powered initially by two 709-kw (950-hp)

The Kawasaki Ki-45 Toryu (Dragon Killer) – known to the allies as Nick – was an important part of the Japanese Armys fighter fleet in the Pacific and saw service through the War in a number of roles. In December 1937 Kawasaki initiated design of the Ki-45, a two-seat fighter

In August 1938 the Imperial Japanese Navy issued an order for a successor to be designed and built to replace the Navy Type 97 Flying Boat Model I, this requiring a cruising range of 7,410 km (4,604 miles), a heavy armament, and the ability to carry two 1,000 kg (2,204

In 1934 the Imperial Japanese Navy issued specifications for a long-range flying boat, and Kawanishi appointed a design team headed by Shizuo Kikuttara. The prototype, the Kawanishi Type 97, powered by Nakajima Kikari 2 nine-cylinder radial engines, commenced flight testing on 14 July 1936. Some problems were experienced with hydrodynamics

The Ka-32 is the designation for the civil series of helicopters produced for the Soviet military forces under the designation Ka-25/27 and given the code names “Hormone” and “Helix”. Basically designed for anti-submarine warfare, the prototype appeared in 1981. Nikolai Ilytich Kamov was one of the lesser known Soviet designers

The Seasprite has had a remarkably long life in service with the US Navy, the contract for its design being issued in 1957. Since then it has been built in relatively small numbers, some 250 or so machines initially, but those built have been the subject of a considerable number

The K-Max was designed and built by Kaman Aerospace as an affordable, medium-lift helicopter able to perform vertical lifts and suited for emergency response missions ranging from fire-fighting and disaster relief to search and rescue, power line work, and timber harvesting. A variant developed was the Firemax, a heli-tanker model

In 1914 the Kalgoorlie Aeroplane Syndicate was formed with the aim of building a two-seat biplane fitted with a 37-kw (50-hp) Gnome rotary engine. Chief constructor of the machine was Mr A E Geere, who served his apprenticeship with VICkers Aircraft Co in the UK. He had obtained pilot’s licence

Developed from the Minicab GY-201, which was designed by Yves Gardan in France, the Cavalier is a redesign of that aircraft, which was also aimed at the amateur construction market.

The Just Aircraft SuperStol is a development of the company’s Highlander developed for the amateur-built market and it was designed and marketed by Just Aircraft of Walhalla

The Escapade and Highlander are produced by Just Aircraft as light sporting aircraft in kit-plane form at the company’s premises at Walhalla in South Carolina.

The Gnatsum series of aircraft was designed and built in France by Marcel Jurca and the name Gnatsum is Mustang reversed.

The MJ-10 is a 75% scale replica of the Supermarine Spitfire designed by the late Marcel Jurca in France and is made available in plan form for construction by amateur builders.

The Jurca MJ-8 and MJ-80 are amateur-built scale replicas of the World War II Focke Wulf Fw-190 fighter aircraft, the former being to 75% scale and the latter full scale.

The Gnatsum (Mustang spelt backwards) is a 2/3rdscale replica of the North American P-51 Mustang

On 27 June 1956 the prototype of a single-seat light monoplane, designed by M Marcel Jurca for amateur construction, was flown in France.

The W.34 series was developed concurrently with the W.33 by Junkers using virtually an identical basic design, and both were refinements of the F.13 and built as general purpose transports.

The W-33 was developed by Junkers concurrently with the W-34 series, both being virtually identical, and in the ultimate a development of the F-13.

Designed and built by Junkers Flugzeug Und Motorenwerke A-G, the Ju 87, known as the Stuka was perhaps the most famous dive-bomber of World War II.

In the 1930s the German aviation industry was attempting to develop a new aeronautical prestige on an international basis

The workhorse of the German Luftwaffe in the transport role during World War II, the prototype Ju-52/ba (D-1974)

It seems there were two Junkers J.1 aircraft, the first, the Blechesel,known as the‘Tin Donkey” or “Sheet Metal Donkey” being the world’s first practical all-metal monoplane and appeared at the beginning of World War

The Junkers G.31 series of commercial transports was one of the success stories of the 1930s, and its operation in New Guinea in the freight role has gone down as one of the important annals in aviation history.