Harakka

Last updated
Harakka
H-56 Harakka II (Helsinki Museum 2001-09-15).JPG
Harakka II glider at Suomen Ilmailumuseo (Finnish Aviation Museum), 2001
RolePrimary glider
National originFinland
First flightFebruary 1945

The Harakka ("European magpie") was a primary glider produced for pilot training in Finland in the 1940s. Its design was typical of this class of aircraft, a "keel" with a pilot's seat suspended beneath a high, strut-braced monoplane wing, and carrying a conventional empennage at the end of an open framework. [1] First flown in February 1945, the type was built from plans by Finnish gliding clubs and soon replaced earlier primary gliders such as the Grunau 9, [2] becoming a standard piece of equipment in the clubs. [1] [3]

Contents

In 1946, Raimo Häkkinen and Juhani Heinonen from Polyteknikkojen Ilmailukerho redesigned the Harakka to strengthen it. [4] This improved version became known as the Harakka II or PIK-7. [4] [5] [6] In 1948, a single example of a more radically redesigned version designated Harakka III flew. [7] This had the framework that supported the tail replaced by a single boom. [7]

Examples of the Harakka I and Harakka II are preserved at the Suomen ilmailumuseo [8] and the Karhulan ilmailukerho Aviation Museum, [1] [6] with the sole Harakka III also preserved at the latter museum. [7]


Variants


Specifications (Harakka II)

Data from "Harakka II (H-57)"

General characteristics

Performance

Notes

  1. 1 2 3 "Harakka I (H-12)"
  2. "Grunau 9 ja PIK-7 Harakka, kerhon 1940-50-lukujen alkeiskoulukoneet"
  3. Hardy 1982, p.74
  4. 1 2 3 "PIK-sarjan lentokoneet"
  5. Taylor 1989, p.726
  6. 1 2 "Harakka II (H-57)"
  7. 1 2 3 4 "Harakka III/PIK-7 (H-34)"
  8. "Aircraft on display" [sic]

Related Research Articles

<span class="mw-page-title-main">Eiri-Avion PIK-20</span> Type of aircraft

The PIK-20 sailplane was designed at the Helsinki University of Technology by Pekka Tammi, with advice from Ilkka Rantasalo and Raimo Nurminen. The prototype first flew on 10 October 1973. It was produced initially by Molino Oy who were taken over by Eiri-Avion Oy between 1974 and 1980. Later, production was taken over by the French company, Siren SA, under the name Siren PIK-20.

<span class="mw-page-title-main">Valmet PIK-23 Towmaster</span> 1980s Finnish light aircraft

The Valmet PIK-23 Towmaster or Suhinu is a Finnish two-seater glider-towing/primary trainer aircraft built entirely out of composite materials in the early 1980s.

<span class="mw-page-title-main">Torolf Eklund</span>

Torolf Eklund was a Finnish aircraft designer, who worked at the Valtion lentokonetehdas between 1935 and 1962. He privately designed and built his own small single-seat flying boat, the Eklund TE-1, in the late 1940s.

<span class="mw-page-title-main">Karhulan ilmailukerho Aviation Museum</span>

Karhulan Ilmailukerhon Aviation Museum is a museum specialized in aircraft, located at Kymi Airfield in Kotka, Finland. The museum opened in 1992. A new 600 m2 display hall was opened in 1995.

<span class="mw-page-title-main">Schneider Grunau Baby</span> German single-seat glider, 1931

The Schneider Grunau Baby was a single-seat sailplane first built in Germany in 1931, with some 6,000 examples constructed in some 20 countries. It was relatively easy to build from plans, it flew well, and the aircraft was strong enough to handle mild aerobatics and the occasional hard landing. When the Baby first appeared, it was accepted wisdom that the pilot should feel as much unimpeded airflow as possible, to better sense rising and falling currents of air and temperature changes etc.

The PIK-3 was a sailplane produced in Finland in the 1950s and 60s. It was designed to be a cheap and easy-to-build aircraft to equip the country's gliding clubs as their standard single-seat machine. It was a conventional design for its day, with a high wing and conventional empennage. Construction was of wood throughout, skinned in plywood.

<span class="mw-page-title-main">PIK-5</span> Glider aircraft

The PIK-5 was a training glider produced in Finland in the 1940s, and 1950s, equipping the country's gliding clubs with an aircraft greater in performance than primary gliders but less than competition sailplanes.

The PIK-13 was a sailplane constructed in Finland to compete in the 1954 World Gliding Championships, held at Camphill Farm, Great Hucklow, UK. It was a conventional mid-wing design of "workmanlike" construction and underwent five test flights in the course of 1954 before its entry in the competition.

<span class="mw-page-title-main">PIK-11</span> Type of aircraft

The PIK-11 Tumppu ("Mitten") was a single-seat, single-engine sport aircraft developed in Finland in the 1950s. It was a low-wing, cantilever monoplane of conventional design with an enclosed cockpit and fixed, tailwheel undercarriage. It was to be the first powered aircraft produced by Polyteknikkojen Ilmailukerho, with the objective being building an aircraft for club use that was cheap to build and easy to fly.

<span class="mw-page-title-main">PIK-15</span> Finnish light aircraft

The PIK-15 Hinu was a light aircraft developed in Finland in the 1960s for use as a glider tug. It was a low-wing cantilever monoplane of conventional design with an enclosed cockpit and fixed, tailwheel undercarriage. The cockpit had two seats, side-by-side, and the PIK-15 was intended to have a secondary role as a trainer. Construction was of wood throughout.

The PIK-19 Muhinu was a light aircraft developed in Finland in the early 1970s for use as a glider tug and flight trainer. It was a low-wing cantilever monoplane of conventional configuration, with an enclosed cockpit and fixed, tricycle undercarriage. Its construction was of composite materials throughout, a novel approach at the time. When the PIK-19 flew for the first time in 1972, it was only the fourth aircraft in the world made of these materials.

<span class="mw-page-title-main">W.W.S.1 Salamandra</span> Type of aircraft

The W.W.S. 1 Salamandra (Salamander) was a single-seat training glider designed and built in Poland from 1936, and again from 1947 after World War II as IS-A Salamandra.

<span class="mw-page-title-main">Schneider Grunau 9</span> German single-seat glider, 1928

The ESG Grunau 9, later known as the ESG 29 and post-1933 as the DFS 108-10, was one of the first primary gliders, built in Germany from the late 1920s. It was widely sold.

<span class="mw-page-title-main">DFS SG 38 Schulgleiter</span> German single-seat glider, 1938

The Schneider DFS 108-14 SG-38 Schulgleiter is a German high-wing, cable-braced, single-seat primary glider that was designed by Schneider, Rehberg and Hofmann at Edmund Schneider's factory at Grunau in 1938, hence the designation. It was produced by several builders, including Deutsche Forschungsanstalt für Segelflug (DFS).

<span class="mw-page-title-main">Fibera KK-1e Utu</span> Type of aircraft

The Fibera KK-1e Utu is a Finnish mid-wing, T-tailed, single-seat, FAI Standard Class glider that was designed by Ahto Anttila and produced by Fibera in the 1960s.

<span class="mw-page-title-main">Lehtovaara PIK-16 Vasama</span> Finnish glider

The Lehtovaara PIK-16 Vasama is a Finnish mid-wing, single-seat, FAI Standard Class glider that was designed by Tuomo Tervo, Jorma Jalkanen and Kurt Hedstrom, who were students at the Polyteknikkojen Ilmailukerho (PIK) and produced by Lehtovaara.

<span class="mw-page-title-main">Caudron C.800</span> Two-seat French glider, 1942

The Caudron C.800, at first also known as the Epervier is a French two seat training glider, designed and first flown during World War II and put into large scale post-war production. It was the dominant basic training glider with French clubs until the 1960s and several still fly.

<span class="mw-page-title-main">Polyteknikkojen Ilmailukerho</span>

Polyteknikkojen Ilmailukerho (PIK) is the student flying club of the Aalto University. As well as a flying club, it develops light aircraft and gliders, often on a small scale but sometimes its designs have been produced in quantity. Approximately 536 aircraft have been built by the organisation and its sub-contractors. It is similar to the Akafliegs of German Universities in that students make designs with advice from staff to give practical experience before seeking employment.

References