The PWS-18 was a Polish

trainer aircraft A trainer is a class of aircraft designed specifically to facilitate flight training of pilots and aircrews. The use of a dedicated trainer aircraft with additional safety features—such as tandem flight controls, forgiving flight characteristic ...

, used from

1937 Events January * January 1 – Anastasio Somoza García becomes President of Nicaragua. * January 5 – Water levels begin to rise in the Ohio River in the United States, leading to the Ohio River flood of 1937, which continues into Feb ...

1939 This year also marks the start of the World War II, Second World War, the largest and deadliest conflict in human history. Events Events related to World War II have a "WWII" prefix. January * January 1 ** Coming into effect in Nazi Ger ...

by the

Polish Air Force The Polish Air Force () is the aerial warfare Military branch, branch of the Polish Armed Forces. Until July 2004 it was officially known as ''Wojska Lotnicze i Obrony Powietrznej'' (). In 2014 it consisted of roughly 26,000 military personnel an ...

, a modified licence variant of the British

Avro Tutor The Avro Type 621 Tutor is a two-seat British radial-engined biplane from the interwar period. It was a simple but rugged basic trainer (aircraft), trainer that was used by the Royal Air Force as well as many other air arms worldwide. Design ...

Development

In 1934, the Polish government, looking for an intermediate military trainer, bought two Avro Tutor trainer aircraft together with a licence to produce the aircraft. Production was ordered in the PWS (''Podlaska Wytwórnia Samolotów'' -

Podlasie Podlachia, also known by its Polish name Podlasie (; ; ), is a historical region in north-eastern Poland. Its largest city is Białystok, whereas the historical capital is Drohiczyn. Similarly to several other historical regions of Poland, e.g ...

Aircraft Factory). In 1935, Antoni Uszacki of the PWS modified the design, fitting it with a

Wright Whirlwind The Wright Whirlwind was a family of air-cooled radial aircraft engines built by Wright Aeronautical (originally an independent company, later a division of Curtiss-Wright). The family began with nine-cylinder engines, and later expanded to in ...

engine, produced under licence in Poland. The new engine

cowling A cowling (or cowl) is the removable covering of a vehicle's engine, most often found on automobiles, motorcycles, airplanes, and on outboard boat motors. On airplanes, cowlings are used to reduce drag and to cool the engine. On boats, cowlings ...

was much longer than the previous

Townend ring A Townend ring is a narrow-chord (aircraft), chord cowling ring fitted around the cylinders of an aircraft radial engine to reduce drag and improve cooling. It was patented in 1929, and found use on various aircraft of the 1930s and into the 1940s ...

type, with a carburetor air intake below it. The wing construction was changed from metal to wooden, better fitted to PWS capabilities, and the rectangular wing tips were rounded. Also some other details were changed, such as a tailskid instead of a tailwheel. A series of 40 aircraft was built in 1935-1936 (1936-1937 according to some references). They were assigned military numbers 80-1 to 80-40. They were not produced in larger numbers because a successful indigenous Polish advanced trainer, the

PWS-26 The PWS-26 was a Polish advanced training aircraft, used from 1937 in aviation, 1937 to 1939 in aviation, 1939 by the Polish Air Force, constructed in the PWS (aircraft manufacturer), PWS (''Podlaska Wytwórnia Samolotów'' - Podlasie Aircraft Fac ...

, using the same engine, was designed and entered production.

Operational history

PWS-18s were used in the Polish military aviation, among others in Airforce Training Center in

Dęblin Dęblin is a town at the Confluence (geography), confluence of Vistula and Wieprz rivers, in Lublin Voivodeship, Poland. Dęblin is the part of the agglomeration with adjacent towns of Ryki and Puławy, which together have over 100,000 inhabitan ...

, an NCO school for minors in

Bydgoszcz Bydgoszcz is a city in northern Poland and the largest city in the historical region of Kuyavia. Straddling the confluence of the Vistula River and its bank (geography), left-bank tributary, the Brda (river), Brda, the strategic location of Byd ...

and in training escadres of air regiments. None survived

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

Operators

; *

Specifications

References

External links

Photos and drawing at Ugolok Neba page
{{PWS aircraft 1930s Polish military trainer aircraft PWS aircraft Biplanes Single-engined piston aircraft Aircraft with fixed conventional landing gear