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johnbr
2nd Lieutenant
G-38 Junkers 1929 succeeded in the construction of the largest land flight train in the world. His competitor - Claudius Dornier - also presented a giant of the skies in the same year with the commercial airliner Do X, which, however, required a large body of water to take off and land. The Dornier Do X was twice the size of the G-38. It had 12 engines with a total output of 6,280 hp. It weighed 28 tons empty and 48 tons full. About 70 passengers could be carried over a distance of 4,000 km. However, since the aircraft only reached a peak height of 500 m, it could practically only cross over the oceans like a ship
G-38 remained in regular service for many years. The G-38 empty weighed only 15 tons, full 24 tons. She was able to carry 37 passengers over a distance of 3,500 km. She reached a peak height of 6.4 km and was thus able to fly safely over the Alps, as she demonstrated several times a week on her flights to Athens. Their total power output was 3,000 hp from four Jumo 204 diesel engines (from 1934).
On 6 November 1929, the G-38 launched with ID D-2000 for their first flight. At that time she was still equipped with two L-5 and two L-8 engines, so that they only 2,400 hp total starting power were available. However, she came out with a take-off distance of 600 m, so that they on all airfields of Could start and land the world. She owes this to her high aerodynamic quality, which was provided by the thick wing (2.05 m), the engines set in the wing and operated with longwave, the wind-slippery fully faired chassis and the effective box tail. The big thick wing and the short fuselage would have led to a very large tail, which of course would have had a corresponding resistance and a corresponding weight. With the box tail could be built with the same effect easier because the frame supported each other, and because both the rudder and the horizontal stabilizer a Endscheibenwirkung stopped, which increased the control moments.
Nevertheless, the G-38 was not a commercial success, which may have been a good part of the onset of 1929 with all the might of the world economic crisis. But even on the technical side, limits were reached that could not simply be ignored. Although the G-38 reached 210 km / h, the highest cruising speed of all Junkers aircraft, but the newly introduced express train (D-train) had the train speed increased from 60 to 80 km / h to 120 km / h at significantly lower travel costs. The accommodation of the passengers in the wing next to the engines has not proven to be successful either. That was loud and stuffy. And the ventilation and heating of the cabin was by no means solved. Through the corrugated metal construction were everywhere openings and gaps through which uncontrolled air and dust could penetrate. The G-38 ultimately convinced Hugo Junkers that it was no longer just about larger aircraft, but now, above all, faster. Because the main advantage of flying was that there were no speed limits in the air.
Specifications G-38: Use: passenger airplane for 37 pass .;
Engine: 4 x Junkers Jumo Diesel 204 with 750 hp each;
Starting weight: 24,000 kg; Preparation mass: 14,900 kg; Payload: 9,100 kg
Span: 44.0 m; Wing area: 305 square meters; Length: 23.2 m; Height: 7.2 m;
Maximum speed: 225 km / h; Travel speed: 210 km / h; Range: 1,000-3,500 km
G-38 remained in regular service for many years. The G-38 empty weighed only 15 tons, full 24 tons. She was able to carry 37 passengers over a distance of 3,500 km. She reached a peak height of 6.4 km and was thus able to fly safely over the Alps, as she demonstrated several times a week on her flights to Athens. Their total power output was 3,000 hp from four Jumo 204 diesel engines (from 1934).
On 6 November 1929, the G-38 launched with ID D-2000 for their first flight. At that time she was still equipped with two L-5 and two L-8 engines, so that they only 2,400 hp total starting power were available. However, she came out with a take-off distance of 600 m, so that they on all airfields of Could start and land the world. She owes this to her high aerodynamic quality, which was provided by the thick wing (2.05 m), the engines set in the wing and operated with longwave, the wind-slippery fully faired chassis and the effective box tail. The big thick wing and the short fuselage would have led to a very large tail, which of course would have had a corresponding resistance and a corresponding weight. With the box tail could be built with the same effect easier because the frame supported each other, and because both the rudder and the horizontal stabilizer a Endscheibenwirkung stopped, which increased the control moments.
Nevertheless, the G-38 was not a commercial success, which may have been a good part of the onset of 1929 with all the might of the world economic crisis. But even on the technical side, limits were reached that could not simply be ignored. Although the G-38 reached 210 km / h, the highest cruising speed of all Junkers aircraft, but the newly introduced express train (D-train) had the train speed increased from 60 to 80 km / h to 120 km / h at significantly lower travel costs. The accommodation of the passengers in the wing next to the engines has not proven to be successful either. That was loud and stuffy. And the ventilation and heating of the cabin was by no means solved. Through the corrugated metal construction were everywhere openings and gaps through which uncontrolled air and dust could penetrate. The G-38 ultimately convinced Hugo Junkers that it was no longer just about larger aircraft, but now, above all, faster. Because the main advantage of flying was that there were no speed limits in the air.
Specifications G-38: Use: passenger airplane for 37 pass .;
Engine: 4 x Junkers Jumo Diesel 204 with 750 hp each;
Starting weight: 24,000 kg; Preparation mass: 14,900 kg; Payload: 9,100 kg
Span: 44.0 m; Wing area: 305 square meters; Length: 23.2 m; Height: 7.2 m;
Maximum speed: 225 km / h; Travel speed: 210 km / h; Range: 1,000-3,500 km
