Vágvölgyi Ádám: Junkers F-13. A Junkers repülőgépek története 1909-től 1932-ig (Budapest, 1990)
Summary (Összefoglaló angolul)
prepared the plans of the J-13 aeroplane. The fuselage constructed partly latticed, Sanger plane. Eight engineers under Otto Reufer's leadership, in 9,000 workinghours partly shell structured way. The bearing force caused by the lifting power was lade to the tubular system inside the wings. The fuselage and the wings were covered by corrugated dural sheet. The under carriage was made from steel tubes. The aeroplane was equipped with floating or ski supports either. The first versions had Mercedes III.a, or BMW Ill.a motors. These were repleaced by L-2 and L-5 motors from 1923, which were built in Junkers own factory. The first two J-13 which were made in Junkers factory were the construction number 531 called "Herta" and 533 — which was named after the doughter of Junkers — called "Annelise". The seal J-13 was changed to F-13 type. The F-13 within rather a short time became a popular passanger plane. This type found a market in the eruropean states, in North and South America, Africa, Asia and Australia too. The type was put into service in 30 countries. Due to the good technical capabilities of the aeroplane made the construction of many versions possible. This type was built till 1932 in 60 versions. In Dessau approximately 370 aeroplane were built. The produced number of F-13 aeroplane, including those which were built under licence, are estimated around 1,000. In North-America J. Larsen founded an air-company and bought 23 aeroplane from Junkers. After assembling the aeroplanes they were put into service under type number JL-6. The JL-6 type aeroplanes were flown speed, height, and time world records. The results drew Amundsen's attention to the type, who was a norvegian arctic explorer, and he desided that his North-Pole expedition whould be carried out with JL-6 type aeroplane. The first delivered aeroplane crashed during forced landing. Amundsen survived the crash safely and bought another aeroplane. The JunkersWorks put two F-13 for Amundsen s disposal to be used by rescue team stationed on the Spitzbergen. One of the aeroplanes crashed on the way towards her destination. Meanwhile Amundsen s pilot mounted skies to their solo JL-6 type aeroplane and during testflight crashed it. So the expedition failed. The late arriving "Eisvogel" F-13 took part only in air photoing geographical spotting of the North-Pole, while doing this reached the 83 degrees latitude. Such distance by aeroplane over the Artie was never reached so far. The sold aeroplanes to the USA were followed by other to overseas. In SouthAmerica in the year of 1919 the founded SCADTA German —Columbian air-transport company with F-13 aeroplanes opened the route from Barranquilla to Puerto and this was the first regular air traffic on the world. One of its plane, called "Magdalena" after 8 years service was brought to Dessau for destruction tests and there found that the rigidity of the aeroplane was equal to the measured in the date of construction. For the increase of overseas marketing of the Junkers aeroplanes, between 1922 and 1925, commercial expeditions were organized to Cuba, Haiti, Dominica, Venezuela, Brasil and Argentina. During the course of the publicity trip, along the northern shore of Brasil, Junkers's son crashed and died. In many countries of Europe were sold Junkers F-13 type aeroplanes. In 1922 F-13 was the first aeroplane which overflew the Alps. In Czechoslovakia a German registreted F-13 was in the property of Tomas Bata the famous boot and shoe manufacturer. During an unsuccesfull departure of this aeroplane Bata had a fatal accident.
