Rogozarski PVT
Encyclopedia
The Rogozarski PVT (Рогожарски ПВТ in Serbian, transliterated as Rogozarski PWT in German and as Rogojarsky PVT in some older English sources) was a single-engined, two-seat parasol wing
Parasol wing
A parasol wing monoplane is an aircraft design in which the wing is not mounted directly to the fuselage, but rather, the fuselage is supported beneath it by a set of struts, called cabane struts...
ed aircraft designed as an advanced and fighter trainer
Trainer (aircraft)
A trainer is a class of aircraft designed specifically to facilitate in-flight training of pilots and aircrews. The use of a dedicated trainer aircraft with additional safety features—such as tandem flight controls, forgiving flight characteristics and a simplified cockpit arrangement—allows...
in Yugoslavia
Yugoslavia
Yugoslavia refers to three political entities that existed successively on the western part of the Balkans during most of the 20th century....
before World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
. Over 60 were built, serving with the Yugoslav Royal Air Force
Yugoslav Royal Air Force
The Yugoslav Royal Air Force was formed in 1918 in the Kingdom of Serbs, Croats and Slovenes and existed until Yugoslavia's surrender to the Axis powers in 1941 following the Invasion of Yugoslavia during World War II....
until the fall of Yugoslavia
Yugoslavia
Yugoslavia refers to three political entities that existed successively on the western part of the Balkans during most of the 20th century....
in 1941. After that, some PVTs were used by the newly formed Croatian Air Force, sometimes as ground attack aircraft.
Design and development
The Prva Srpska Fabrika Aeroplana Zivojin Rogozarski was the first SerbiaSerbia
Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...
n aircraft manufacturer in Yugoslavia
Yugoslavia
Yugoslavia refers to three political entities that existed successively on the western part of the Balkans during most of the 20th century....
, founded in 1924. In about 1933 its team of Rudolf Fizir, Sima Milutinović, Kosta Sivčev and Adem Biščević designed the PVT, a training aircraft with tandem open cockpits in an oval wooden monocoque fuselage. Its wooden, canvas covered wings were swept and parasol
Parasol wing
A parasol wing monoplane is an aircraft design in which the wing is not mounted directly to the fuselage, but rather, the fuselage is supported beneath it by a set of struts, called cabane struts...
mounted well above the fuselage with pairs of lift struts to the lower fuselage and a central inverted V cabane
Cabane strut
The cabane struts of a biplane aircraft support the upper wing over the fuselage and work in conjunction with other wing components such as spars and flying wires to transmit flight loads....
. They carried long narrow chord ailerons, with prominent spades well clear of the upper surfaces.
The PVT was powered by a 420 hp (313 kW) 7-cylinder radial Gnôme-Rhône 7K radial engine
Radial engine
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes on a wheel...
, housed with its cylinder heads exposed and driving a two-bladed propeller
Propeller
A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and a fluid is accelerated behind the blade. Propeller dynamics can be modeled by both Bernoulli's...
. The fixed, divided type undercarriage had on each side a main shock absorber leg, its upper end attached to a steel pyramid protruding from the mid-fuselage keeping the leg closer to the vertical whilst providing a wide track. Each wheel was connected to the lower fuselage with a swinging V-strut. A simple tail skid completed the undercarriage. The horizontal tail and fixed fin were both canvas covered wooden structures, though the moving surfaces, also canvas covered, had metal frames. The tailplane was strut braced to the fuselage from below and wire braced above to the fin. It carried elevators which were spade assisted like the ailerons but also horn balanced. The unbalanced rudder was broad and rounded.
Operational history
The PVT prototype probably first flew in 1934. An initial production batch of 20 aircraft was delivered to the YAFYugoslav Royal Air Force
The Yugoslav Royal Air Force was formed in 1918 in the Kingdom of Serbs, Croats and Slovenes and existed until Yugoslavia's surrender to the Axis powers in 1941 following the Invasion of Yugoslavia during World War II....
during 1936. Another 40 were delivered during 1938-9, of which the last 10 had fixed 7.7 mm (0.303 in) forward firing machine guns fitted and were powered by a licence built version of the Gnôme-Rhône 7K engine, the IAM K7. More PVTs were under construction at the time of the Italo-German
Germans
The Germans are a Germanic ethnic group native to Central Europe. The English term Germans has referred to the German-speaking population of the Holy Roman Empire since the Late Middle Ages....
invasion of Yugoslavia
Yugoslavia
Yugoslavia refers to three political entities that existed successively on the western part of the Balkans during most of the 20th century....
in April 1941. 15 PVT
PVT
PVT may refer to:*PVT , pressure, volume and temperature in an equation of state*PVT * Ltd, stands for a private limited Company in the Britain and the Commonwealth*PV/T or PV-T : Photovoltaic thermal hybrid solar collector...
s captured by the Germans were presented to the newly formed Croatian Air Force. Later some of these were fitted with bomb racks and used as attack aircraft until 1945.
A few PVTs, designated PVT-H, (H-hidro) were configured as seaplanes on standard Edo
EDO Corporation
EDO Corporation was an American company, which was acquired by ITT Corporation in 2007. EDO designed and manufactured products for defense, intelligence, and commercial markets, and provided related engineering and professional services. It employed 4,000 people worldwide and had revenues of $715...
(EDO Float Model 38) floats mounted on N-shaped struts. During 1938 and 1939, four PVT-H aircraft wee delivered to the Yugoslav Royal Navy
Yugoslav Royal Navy
The Royal Yugoslav Navy was the navy of the Kingdom of Yugoslavia.This navy existed since the establishment of the Kingdom of Serbs, Croats and Slovenes in 1918, which was changed in 1929 to the Kingdom of Yugoslavia...
.
Operators
Kingdom of Yugoslavia
- Royal Yugoslav Air Force 61 aircraft
Independent State of Croatia
- Air Force of the Independent State of CroatiaAir Force of the Independent State of CroatiaThe Air Force of the Independent State of Croatia, the Zrakoplovstvo Nezavisne Države Hrvatske was the national air force of the Independent State of Croatia during World War II, founded under German authority in April 1941...
14 ex-Royal Yugoslav Air Force