But
it would not be until 1852 that another French, steam engineer Henri Giffard,
ordinarily regarded as the airship inventor today, built the first practical
airship and flew it. At an impressive average speed of 6.7 miles
per hour (10.8 km/h), he demonstrated powered flight, on September 24,
1952, flying from Paris to Trappe in an airship fitted with a suspended
gondola and a 3 horsepower steam engine of his own design, for a total
of 27 km (17 miles). The gas bag was 44 m (144 feet) long and 12
m (39 feet) in diameter, inflated with 2,500 m3
(88,000 cubic feet) of coal gas. Control was minimal and the engine very
heavy.
Two other French brothers Albert and Gaston Tissandier, also made themselves famous with their experiments. Gaston's son, Paul, would also become an aeronaut. Jules Francois Dupuis-Delcourt, an airship constructor, did pioneering work in the 1850's.
In our Europe, in 1872, Paul Haenlein raised the speed to 16 km/h (10 mph) with an engine fed by coal gas from an envelope of the balloon. The first fully controllable airship, steerable back to its starting point regardless of wind, was built in 1884 by the team of Charles Renard and Arthur C. Krebs. It used an electrical power plant and achieved 23.3 km/h (14.5 mph). But in New Europa, Rhyme Enginemaster, aided by Tom Olam, builds Leonardo da Vinci's long-lost Sorcerous Engine in 1870, allowing the Kingdom of Bavaria to seize air supremacy. This spurs many competitors, first and foremost Prussia under the impetus of Count Ferdinand von Zeppelin, to find develop their own lighter-than-air ships...