FREE BOOKS

Author's List




PREV.   NEXT  
|<   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30  
31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50   51   52   53   54   55   >>   >|  
ion of a machine weighing 600 lb., including the operator and an 8 horse-power engine, which on December 17th, 1903, realized the dreams of centuries. After an increasing number of experiments, a machine built in 1905 flew 24-1/4 miles at a speed of 38 miles an hour. It is interesting to recall that the new invention was refused once by the United States and three times by the British Government. It was not until September 13th, 1906, that Ellehammer, a Danish engineer, made the first free flight in Europe, his machine flying 42 metres at a height of a metre and a half. About the same time reports of the Wrights' successes began to reach Europe and were quickly appreciated by the French. Space forbids that I should enter into the achievements of the early French aviators, among whom the names of Ferber, Bleriot and Farman will always rank high in the story of human faith, courage and determination. It is a record of rapid advance. Farman made a circuit flight of 1 kilometre in 1908, and flew from Chalons to Rheims, a distance of 27 kilometres, in twenty minutes. Bleriot crossed the Channel in a monoplane of his own design in forty minutes. French designers improved the control system, and French machines became famous. The records of the Rheims meeting of 1909 serve to illustrate the progress made during the first phase of aviation. Latham won the altitude prize by flying to a height of over 500 feet. Farman the prize for the flight of longest duration by remaining more than three hours in the air, and the passenger carrying prize by carrying two passengers round a 10-kilometre course in 10-1/2 minutes. The Gnome rotary engine was first used with success at this meeting. Before turning to the pioneer efforts in England and the pre-war organization of our air forces, some account of the development of the lighter-than-air dirigible is desirable. THE FIRST AIRSHIPS. The earliest conception of an airship is to be found in General Meusnier's design in 1784 for an egg-shaped balloon driven by three screw propellers, worked, of course, by hand. The chief interest in his design, though it never materialized, lies in the fact that it provided for a double envelope and was the precursor of the ballonet. The first man-carrying airship was built by Henri Giffard in 1852. It had a capacity of 87,000 cu. feet, a length of 144 feet, a 3 horse-power engine, and a speed of 6 miles an hour. A gas engine was first used tw
PREV.   NEXT  
|<   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30  
31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50   51   52   53   54   55   >>   >|  



Top keywords:
engine
 
French
 
minutes
 
design
 

carrying

 

Farman

 

flight

 

machine

 

flying

 

kilometre


airship

 

Rheims

 

Bleriot

 

Europe

 

meeting

 

height

 

passengers

 
rotary
 
turning
 

Before


pioneer

 

efforts

 
England
 

success

 

length

 

aviation

 
Latham
 

progress

 

records

 
illustrate

altitude

 
remaining
 

passenger

 

duration

 
longest
 

interest

 

worked

 

capacity

 

balloon

 

driven


propellers

 
Giffard
 
precursor
 

envelope

 

provided

 

ballonet

 

materialized

 

shaped

 

dirigible

 
lighter