The LWS-2 was the

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles Poles,, ; singular masculine: ''Polak'', singular feminine: ''Polka'' or Polish people, are a West Slavic nation and ethnic group, w ...

air ambulance Air medical services is a comprehensive term covering the use of air transportation, aeroplane or helicopter, to move patients to and from healthcare facilities and accident scenes. Personnel provide comprehensive prehospital and emergency and cri ...

aircraft prototype, designed in the late-1930s in the LWS factory (''Lublin Aircraft Factory'').

Design and development

The LWS-2 was designed as a light ambulance aircraft, for a requirement of the Polish Air Force and the Polish

Red Cross The International Red Cross and Red Crescent Movement is a humanitarian movement with approximately 97 million volunteers, members and staff worldwide. It was founded to protect human life and health, to ensure respect for all human beings, and ...

(PCK), which was operating military ambulances. A preliminary design was made in

1936 Events January–February * January 20 – George V of the United Kingdom and the British Dominions and Emperor of India, dies at his Sandringham Estate. The Prince of Wales succeeds to the throne of the United Kingdom as King E ...

Zbysław Ciołkosz Zbysław Ciołkosz (23 March 1902 – 25 June 1960) was a prolific Polish American aircraft designer, whose work includes the P.Z.L. 27, PWS-20, LWS-3 Mewa, RWD-11, LWS-6 Żubr, PWS-1, PWS-54, PWS-19, LWS-2, and PWS-52.''Obituary'' (1960) Fli ...

, the main designer of the LWS factory, follower by

Jerzy Teisseyre Jerzy is the Polish version of the masculine given name George. The most common nickname for Jerzy is Jurek (), which may also be used as an official first name. Occasionally the nickname Jerzyk may be used, which means "swift" in Polish. People ...

's detailed design. It was influenced by

RWD-9 The RWD 9 was a Polish sports plane of 1934, constructed by the RWD team. Development The aircraft was a further development of the RWD 6 - the winner of the ''IIIrd Challenge de Tourisme International'' Challenge 1932 international tourist airc ...

and

RWD-13 The RWD 13 was a Polish touring plane of 1935, three-seater high-wing monoplane, designed by the RWD team. It was the biggest commercial success of the RWD. Development The RWD 13 was a touring plane, developed from a line of sports planes RWD ...

planes of the RWD team, especially their wing construction with rich wing mechanization, that gave it STOL capabilities. The prototype was built using PCK funds. Aircraft was registered SP-ATP and flown in autumn of 1937. The Polish Red Cross ordered six aircraft, but the LWS factory was busy at that time with military production (

RWD-14 Czapla The RWD-14 Czapla (LWS Czapla) was a Polish army cooperation aircraft (observation, close reconnaissance and liaison aircraft), designed in the mid-1930s by the RWD team, and produced in the LWS factory from 1938. A series of 65 aircraft were b ...

and

LWS-3 Mewa The LWS-3 Mewa ("Seagull") was a Polish observation and close reconnaissance aircraft, designed in the late-1930s by the LWS factory. It was ordered by the Polish Air Force, but did not manage to enter service before the outbreak of World War II ...

), and they were not built by 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 opposing ...

. LWS's next design, the LWS-3 Mewa close

reconnaissance plane In military operations, reconnaissance or scouting is the exploration of an area by military forces to obtain information about enemy forces, terrain, and other activities. Examples of reconnaissance include patrolling by troops (skirmishers, ...

, utilized many features of the LWS-2, and was generally similar.

Description

Mixed construction (steel and wood) braced high-wing

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 con ...

, conventional in layout. Fuselage of a steel frame, canvas covered (engine part with duralumin). Two-spar straight wings of wooden construction, with slats, flaps and

flaperon A flaperon (a portmanteau of flap and aileron) on an aircraft's wing is a type of control surface that combines the functions of both flaps and ailerons. Some smaller kitplanes have flaperons for reasons of simplicity of manufacture, while ...

s, covered with canvas and plywood (in front), rectangular with rounded tips and narrowing near the fuselage. The wings were supported with V-struts and were folding rearwards. Cantilever

empennage The empennage ( or ), also known as the tail or tail assembly, is a structure at the rear of an aircraft that provides stability during flight, in a way similar to the feathers on an arrow.Crane, Dale: ''Dictionary of Aeronautical Terms, third e ...

, covered with plywood (stabilizers) and canvas (rudder and elevators). Conventional fixed

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 ...

, with a rear skid. Capacity of four in a closed cockpit: a pilot in front, a

doctor Doctor or The Doctor may refer to: Personal titles * Doctor (title), the holder of an accredited academic degree * A medical practitioner, including: ** Physician ** Surgeon ** Dentist ** Veterinary physician ** Optometrist *Other roles ** ...

behind him, and two lying on

stretcher A stretcher, gurney, litter, or pram is an apparatus used for moving patients who require medical care. A basic type (cot or litter) must be carried by two or more people. A wheeled stretcher (known as a gurney, trolley, bed or cart) is often ...

s at the back. It had a 9-cylinder air-cooled Avia-built

Wright Whirlwind J-5 The Wright R-790 Whirlwind was a series of nine-cylinder air-cooled radial aircraft engines built by Wright Aeronautical Corporation, with a total displacement of about and around . These engines were the earliest members of the Wright Whirl ...

radial engine The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ...

delivering 220 hp (164 kW) nominal power and 240 hp (179 kW) take-off power. Two-blade metal propeller Ratier, of variable pitch. A 130-liter fuel tank behind the engine. Cruise fuel consumption 48 L/h.

Operational history

On May 19, 1938 the prototype was given to the Air Force. Between July 1 and July 4, 1938, the LWS-2 prototype took part in an International Ambulance Aircraft Contest in Esch in

Luxembourg Luxembourg ( ; lb, Lëtzebuerg ; french: link=no, Luxembourg; german: link=no, Luxemburg), officially the Grand Duchy of Luxembourg, ; french: link=no, Grand-Duché de Luxembourg ; german: link=no, Großherzogtum Luxemburg is a small lan ...

, and won first place and a cup for the best accommodation in a cab for the injured. The prototype was later used by the Polish Red Cross. Its fate during the

is not clear, as the damaged plane was captured by the Germans on airfield at

Krosno Krosno (in full ''The Royal Free City of Krosno'', pl, Królewskie Wolne Miasto Krosno) is a historical town and county in the Subcarpathian Voivodeship, in southeastern Poland. The estimated population of the town is 47,140 inhabitants as of ...

Operators

; *

Polish Red Cross Polish Red Cross ( pl, Polski Czerwony Krzyż, abbr. PCK) is the Polish member of the International Red Cross and Red Crescent Movement. Its 19th-century roots may be found in the Russian and Austrian Partitions of the Polish–Lithuanian Commonwe ...

operated one prototype, ordered 6 aircraft, none delivered.

Specifications (LWS-2)

References

External links

Photos and drawings at Ugolok Neba
{{LWS aircraft 1930s Polish civil utility aircraft 1930s Polish military utility aircraft Single-engined tractor aircraft High-wing aircraft Aircraft first flown in 1937