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Schwarz Airship No.1 / No.2


In 1895 Austrian timber merchant David Schwarz produced plans for a rigid-framed airship. It was built in St Petersburg for the Russian government but, although completed, never flew due to political complications; the Russians constantly regarding Schwarz as a spy. Schwarz was forced to leave Russia in secrecy, retuning to Germany where he built a second airship of similar design for the Prussian Airship Division in Berlin.
Schwarz died before the constuction was complete. The work was taken over by his able and practable widow until completed. The airship was a bottle-shaped craft of cylindrical form with a conical nose and shallow rounded stern, an internal framework constructed of tubular aluminium members and girders was covered by a skin of sheet aluminium .008in in thickness. The hull contained a single gas cell.
The filling of the envelope was accomplished by introducing a series of paper bags within the framework to be filled with hydrogen gas, which at the same time expelled an equal volume of air contained within the metal hull. A two-cylinder Daimeter petrol motor of 12 hp provided power, driving three airscrews through fabric transmission belts.
Two wing screws mounted above the car were esigned to drive the craft through the air, while a third larger diameter propeller mounted on the centre line, able to move through 90˚ vertically and horizontally, was supposed to control direction.



Schwarz No.2 crashed on its initial flight at Tempelhof on 4 November 1897. With the engines running, the ground crew released the ropes and the airship rose to approximately 100 ft. Maintaining its position against the breeze for some minutes, the airship was beginning to make headway against the wind when the left-hand driving belt jumped off its sheaves.
The airship continued to rise to 1300 ft as the pilot, a soldier named Ernst Jagels, struggled to maintain control, adjusting the angle of the cenral propeller to counte the wind. Just as he was turning into wind the right-hand driving belt also slipped off. Jagels valved gas to bring the craft down near the Tempelhof Feld but the descent was too apid, causing it to crash heavily on the ground, completely wrecking the airship. Jagels escaped unharmed but without further funding the project was abandoned.



Envelope capacity: 131,000 cu.ft
Length: 154 ft
Diameter: 46 ft
Height: 60 ft
Engine: Diamler 2 cyl, 12 hp
Speed: 17 mph
Crew: 1



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