PZL.44 Wicher
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The PZL.44 Wicher (''gale'') was a
prototype A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and Software prototyping, software programming. A prototyp ...
of 14-seat, twin-engine Polish
airliner An airliner is a type of aircraft for transporting passengers and air cargo. Such aircraft are most often operated by airlines. Although the definition of an airliner can vary from country to country, an airliner is typically defined as an ...
, built in the Państwowe Zakłady Lotnicze (PZL) in
1938 Events January * January 1 ** The Constitution of Estonia#Third Constitution (de facto 1938–1940, de jure 1938–1992), new constitution of Estonia enters into force, which many consider to be the ending of the Era of Silence and the a ...
. It was to compete with the DC-2 and
Lockheed Super Electra The Lockheed Model 14 Super Electra was an American civil passenger and cargo aircraft built by the Lockheed Aircraft Corporation during the late 1930s. An outgrowth of the earlier Model 10 Electra, the Model 14 was also developed into larger, ...
.


Design and development

In mid-1930s the Polish Ministry of Communication ordered a development of an own passenger plane for
LOT Polish Airlines LOT Polish Airlines, legally incorporated as Polskie Linie Lotnicze LOT S.A. (, ''flight''), is the flag carrier of Poland. Established in 1928, LOT was a founding member of IATA and remains one of the world's oldest airlines in operation. Wit ...
, using imported airliners so far, mostly Lockheed Model 10 Electra and DC-2. The plane was designed in the state factory Państwowe Zakłady Lotnicze under direction of Wsiewołod Jakimiuk in 1936-1937. The prototype was flown on March 12,
1938 Events January * January 1 ** The Constitution of Estonia#Third Constitution (de facto 1938–1940, de jure 1938–1992), new constitution of Estonia enters into force, which many consider to be the ending of the Era of Silence and the a ...
by
Bolesław Orliński Bolesław Orliński (13 April 1899 – 28 February 1992) was a Polish aviator, military, sports and test pilot. He was born on the family estate in Niwerka, Podolia (now Niverka, Kamianets-Podilskyi Raion, Khmelnytskyi Oblast, Ukraine). During W ...
. The aircraft was designated PZL.44 Wicher. In December 1938 it was given to LOT for evaluation, with registration SP-BPJ. Initially LOT airlines ordered 10 PZL.44s but high cost of a single plane and delays in development were reasons for decreasing order to 4, then for cancelling it in 1939. LOT bought a batch of 10 cheaper Lockheed Model 14 Super Electra in 1938 and 1939 instead. Wicher was the first modern airliner designed in Poland. Its construction was very modern, but it is estimated, that the whole program was too ambitious, because a development of an own passenger plane, without much hope of export, was unprofitable. Moreover, LOT airlines found operation features of well-proven Lockheed Super Electra more satisfactory. Lockheed offered a possibility of licence production as well. Besides, the Wicher development caused delays in development of new fighter aircraft, like
PZL.50 Jastrząb The PZL.50 Jastrząb (''hawk'') was a Polish pre-war fighter aircraft design by Wsiewołod Jakimiuk of the PZL works. The single-seat low-wing monoplane was to serve as a multi-purpose fighter and escort to replace all other fighters in the Poli ...
, that were more needed in an advent of the war.


Description

Twin-engine low-wing cantilever
monoplane A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...
of all-metal construction, metal covered (with Alclad sheet). Fuselage semi- monocoque. Crew cockpit in front with a crew of 4: two pilots, radio operator and a mechanic. Passenger cab with 14 seats in two rows, dimensions: length 9 m, width 1.7 m, height 1.85 m. In the rear, WC and (planned) buffet with steward's seat. Crew doors on the left in front, passengers' doors on the left at the rear. Baggage space was between cockpit and the passenger cab and in a tail section, capacity: 5 m3. Elliptical wing (shape similar to
PZL.37 Łoś The PZL.37 ''Łoś'' (''moose'') was a Polish twin-engined medium bomber designed and manufactured by national aircraft company PZL. It is also known as "PZL P-37" or "PZL P.37", but the letter "P" was generally reserved for fighters of Zygmunt Pu ...
bomber). Engine nacelles in wings. Three-blade Hamilton Standard propellers. Retractable conventional
landing gear Landing gear is the undercarriage of an aircraft or spacecraft that is used for takeoff or landing. For aircraft it is generally needed for both. It was also formerly called ''alighting gear'' by some manufacturers, such as the Glenn L. Martin ...
- main gear with single wheels retractable to engine nacelles. Double elliptical tailfin. Fuel tanks 2200 L in wings (normal load 1800 L).


Operational history

After the outbreak of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
, on 1 September 1939, the prototype was evacuated from Warsaw to
Lwów Lviv ( uk, Львів) is the largest city in western Ukraine, and the seventh-largest in Ukraine, with a population of . It serves as the administrative centre of Lviv Oblast and Lviv Raion, and is one of the main cultural centres of Ukraine ...
, but it damaged a landing gear and was left there. It was next captured by the invading Soviets and evaluated in Moscow.


Operators

; *
LOT Polish Airlines LOT Polish Airlines, legally incorporated as Polskie Linie Lotnicze LOT S.A. (, ''flight''), is the flag carrier of Poland. Established in 1928, LOT was a founding member of IATA and remains one of the world's oldest airlines in operation. Wit ...
operated single prototype and was expected operator of a series.


Specifications (PZL.44)


See also


References


Further reading

* {{PZL aircraft 1930s Polish airliners Low-wing aircraft Wicher Aircraft first flown in 1938 Twin piston-engined tractor aircraft