The Cierva C.9 was an experimental autogyro built by Cierva in England in 1927, in association with Avro. It was the first of Cierva's autogyro designs...

The Cierva C.30 is an autogyro designed by Juan de la Cierva and built under licence from the Cierva Autogiro Company by A V Roe & Co Ltd (Avro), Lioré-et-Olivier...

The Cierva W.9 was a British 1940s experimental helicopter with a three-blade tilting-hub controlled main rotor, and torque compensation achieved using...

Juan de la Cierva y Codorníu, 1st Count of la Cierva ([ˈxwan de la ˈθjeɾβaj koðoɾˈni.u]; 21 September 1895 – 9 December 1936), was a Spanish civil engineer...

entertainment company and record label Cierva C.9, a 1927 British experimental autogyro HMS C9, a British submarine Ford C-9, a US military designation for the...

The Cierva C.6 was the sixth autogyro designed by engineer Juan de la Cierva, and the first one to travel a "major" distance. Cierva, the engineer responsible...

The Cierva C.4 was an experimental autogiro built by Juan de la Cierva in Spain in 1922 which early the following year became the first autogyro to fly...

The Cierva C.19 was a 1930s British two-seat autogyro, designed by Spanish engineer Juan de la Cierva. It was built by Avro as the Avro Type 620. It proved...

Cierva C.8 is an experimental autogyro built by Juan de la Cierva in England in 1926 in association with Avro. Like Cierva's earlier autogyros, the C...

[citation needed] Cierva C.1 Cierva C.2 Cierva C.3 Cierva C.4 Cierva C.5 Cierva C.6 Cierva C.7 Cierva C.8 Cierva C.9 Cierva C.10 Cierva C.12 (first flight...

Havilland C.24 was a two-seat autogyro built by de Havilland at its Stag Lane works in England in 1931 The C.24 was built in 1931 using a Cierva rotor head...

The Cierva C.12 was an experimental autogyro built by Cierva Autogiro Company in England in 1929, in association with Avro. Like most other Cierva designs...

The Cierva C.40 was a British autogyro designed by G.B.L. Ellis, Otto Reder, and Dr. J.A.J Bennett and was assembled by the British Aircraft Manufacturing...

The Cierva C.29 was a five-seat British cabin autogyro built in 1934 as a joint venture between Westland Aircraft and Cierva. The rotor system and rotors...

574/575 – Cierva C.6 Avro 586/587/611 – Cierva C.8 Avro 576/581 – Cierva C.9 Avro 612 – Cierva C.17 Avro 620 – Cierva C.19 Avro 671 Rota – Cierva C.30 Avro...

The Cierva C.1 was an experimental autogyro built by Juan de la Cierva in Spain in 1920, the forerunner of his successful series of autogyros. The C.1 was...

1 Cierva C.1 Cierva C.2 Cierva C.3 Cierva C.4 Cierva C.6 Cierva C.8 Cierva C.9 Cierva C.12 Cierva C.17 Cierva C.19 Cierva C.24 Cierva C.29 Cierva C.30A...

The Cierva W.11 Air Horse was a helicopter developed by the Cierva Autogiro Company in the United Kingdom during the mid-1940s. The largest helicopter...

The Cierva C.3 was an experimental autogyro built by Juan de la Cierva in Spain in 1921.[citation needed] It was based on the fuselage of a Sommer monoplane...

Cierva C.2 was an experimental autogyro built by Juan de la Cierva in Spain in 1921-22. Following the failure of the C.1 the previous year, la Cierva...

The Cierva C.17 was a British experimental autogyro built by Cierva Autogiro Company in England in 1928, in association with Avro (which designated it...

The Cierva C.7 was an experimental autogiro designed by Juan de la Cierva and built in the late 1920s. On January 7, 1927, the Cierva C.6C was flying...

and engineer, Juan de la Cierva, in his attempt to create an aircraft that could fly safely at low speeds. He first flew one on 9 January 1923, at Cuatro...

The Cierva C.25 was a British 1930s single-seat autogiro produced by Comper Aircraft Company Ltd of Hooton Park, Cheshire. The sole C.25, based on the...

first practical helicopter, first flown in 1936. Focke-Wulf Fw C.30A - licence-built Cierva C.30A (general purpose autogyro) Nagler-Rolz NR 54 (one-man portable...

A-1 Autogyro Cierva C.19 Pitcairn PA-18 Taylor 1989, p.735 The Illustrated Encyclopedia of Aircraft, p.2739 "Pitcairn, A G A, Pitcairn-Cierva, Pitcairn-Larsen"...

The Cierva CR Twin (originally designated CR LTH.1 and also known as the Grasshopper III) was a five-seat utility helicopter that first flew in the UK...

Cierva C.17 Cierva C.19 Cierva C.20 Cierva C.21 Cierva C.24 Cierva C.25[citation needed] Cierva C.29 Cierva C.30 Cierva C.33[citation needed] Cierva C...

more Latécoère 23 aircraft are built. Abrial A-3 Oricou Buhl Airsedan Cierva C.9 Curtis XP-6, prototype of the Curtiss P-6 Hawk Focke-Wulf A 17 Focke-Wulf...

companies. In 1928, Pitcairn purchased a Cierva C.8W and the American manufacturing rights from Juan de la Cierva for his autogiro designs for $300,000....