The KB-2 Freedom Machine is an

autogyro An autogyro (from Greek and , "self-turning"), also known as a ''gyroplane'', is a type of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. Forward thrust is provided independently, by an engine-driven propeller. Whi ...

Bensen B-8 The Bensen B-8 is a small, single-seat autogyro developed in the United States in the 1950s. Although the original manufacturer stopped production in 1987, plans for homebuilders are still available as of 2019. Its design was a refinement of t ...

.Downey, Julia: ''2005 Trikes 'Chutes and Rotorcraft Directory'', Kitplanes, Volume 22, Number 2, February 2005, page 57. Belvoir Publications. ISSN 0891-1851

Design and development

Ken Brock was an early innovator in homebuilt gyrocopters starting with his first ride in 1957. Brock set to work on building and marketing a series of homebuilt gyroplanes with the KB-1 and later the KB-2.

Operational history

Ken Brock used his KB-2 design for years in airshow acts and completed several world records. In 1971 he completed the first coast-to-coast autogyro flight from

Long Beach, California Long Beach is a city in Los Angeles County, California. It is the 42nd-most populous city in the United States, with a population of 466,742 as of 2020. A charter city, Long Beach is the seventh-most populous city in California. Incorporate ...

Kitty Hawk, North Carolina Kitty Hawk is a town in Dare County, North Carolina, United States, and is a part of what is known as North Carolina's Outer Banks. The population was 3,708 at the 2020 Census. It was established in the early 18th century as Chickahawk. History ...

Variants

;KB-2 :Powered variant ;KB-2G :Variant with the same frame and rotor head as a KB-2. The "glider" is a two-seat gyroplane designed to be towed by car. The aircraft with the same frame and rotor assembly can be converted to a powered gyroplane.

Aircraft on display

A 1970 demonstrator KB-2 is in the

EAA Airventure Museum The EAA Aviation Museum, formerly the EAA AirVenture Museum (or Air Adventure Museum), is a museum dedicated to the preservation and display of historic and experimental aircraft as well as antiques, classics, and warbirds. The museum is lo ...

in Oshkosh, Wisconsin

Specifications (KB-2)

References