| Rogozarski R-100 | |
|---|---|
| Role | Advanced trainer |
| National origin | Yugoslavia |
| Manufacturer | Prva Srpska Fabrika Aeroplana Zivojin Rogozarski, Belgrade |
| Designer | S. Milutinović |
| First flight | 1938 |
| Introduction | 1939 |
| Retired | 1950 |
| Status | inactive |
| Primary user | Yugoslav Royal Air Force |
| Produced | from 1937 to 1939 |
| Number built | 26[1] |
| Developed from | Rogozarski PVT |
The Rogozarski R-100 (Рогожарски Р-100 in Serbian, transliterated as Rogožarski R-100 in German and as Rogojarsky Р-100 in some older English sources) was a single-engined, single-seat parasol winged aircraft designed as an advanced and fighter trainer in Yugoslavia before World War II. Over 25 were built, serving with the Yugoslav Royal Air Force until the fall of Yugoslavia in 1941. After that, 11 R-100s were used by the newly formed Croatian Air Force, sometimes as ground attack aircraft and 1 R-100 were used by Italian Air Force.
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The Prva Srpska Fabrika Aeroplana Zivojin Rogozarski A.D. was the first Serbian aircraft manufacturer in Yugoslavia, founded in 1924. In about 1938 they designed the Rogozarski R-100, a training aircraft with single open cockpit in an oval wooden monocoque fuselage, was a product of the design team of Prof. Sima Milutinović as a successor to their Rogozarski PVT trainer aircraft. Its wooden, canvas covered wings were swept and parasol mounted well above the fuselage with pairs of lift struts to the lower fuselage and a central inverted V cabane. They carried long narrow chord ailerons, with prominent spades well clear of the upper surfaces.[2]
The R-100 was powered by a 420 hp (314 kW) 7-cylinder radial IAM K-7 license built version Gnôme-Rhône 7K radial engine, housed with its cylinder heads exposed and driving a two-bladed propeller. Engine was coated NACA ring. The plane had a flight back to the carburetor and fuel tank of 158 liters. 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, introduced a taol wheel. The horizontal tail and fixed fin were both canvas covered wooden structures, though the moving surfaces, also canvas covered, had metal frames.
The PVT prototype probably first flew in 1938 a test pilot was Miloš Gagić. An initial production batch of 15 aircraft was delivered to the YRAF during 1939. The first aircrafts R-100 were immediately sent to Niš in the Fighters school. Another 10 were delivered during 1939-40, had fixed 7.7 mm (0.303 in) Darne machine guns and photo gun (camera). These planes were designed for school shooting in Bela Crkva. Aircraft R-100 were used extensively before the war to training pilots spare.
At the time of the Italo-German invasion of Yugoslavia in April 1941, the Italians seized one plane R-100, and 11 of these planes the Germans, others were destroyed. The Germans captured planes R-100 surrendered to its allies the Croats (ISC) who were trained and used throughout the war. In the initial period were used for retraining and training pilots, and later fitted with mountings for a bomb of 90 or 100 kg, and were used for bombing. Several pieces of R-100 in place of a conventional fighter jet patrolled the outskirts of Zagreb, to repel the attacks of partisan aircraft. Last combat flight on this aircraft carried out on 26 April 1945. Two aircraft of this type are at the end of the war, flew over the partisan side, and two are seized at the airport Lucko near Zagreb during the liberation. All four planes that survived the war are included in the Yugoslav Army Air Force (JRV). One used in the 111th and 112 Fighting regiment, the third was used in the VTC (Aeronautic Technical Center) and the fourth was used by the commander of 4th bomber division. The JRV planes flew to the beginning of 50th -those years when they stopped being used. Parts of an R-100 are kept at the Yugoslav Aeronautical Museum at the airport "Nikola Tesla" Belgrade.
Data from Станојевић, Драгољуб.; Чедомир Јанић (12/1982.). "Животни пут и дело једног великана нашег ваздухопловства - светао пример и узор нараштајима" (in (Serbian)). Машинство (-{YU}--Београд: Савез инжењера и техничара Југославије) 31: 1867–1876.
General characteristics
Performance
Armament
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