Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . otion. Immediately they noticed that thespeed was increasing, and as a further encouraging symptom itwas seen that small changes of direction could be effected bymeans of the rudder. The journey was therefore continued fromnorth to south till they crossed the road from Choisy to Versailles,after which they turned to the west. It had not been intendedto sail directly against the wind, which however only amountedto a gentle breeze. But their confidence inc
Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . otion. Immediately they noticed that thespeed was increasing, and as a further encouraging symptom itwas seen that small changes of direction could be effected bymeans of the rudder. The journey was therefore continued fromnorth to south till they crossed the road from Choisy to Versailles,after which they turned to the west. It had not been intendedto sail directly against the wind, which however only amountedto a gentle breeze. But their confidence increased, and at a 56 AIRSHIPS PAST AND PRESENT. distance of 2J miles from Chalais they turned round, completingthe bend in the small angle of 11 degrees at a radius of about160 yards. After a slight deviation to the right-hand side, whichwas soon corrected by the rudder, the balloon reached a spot1,000 ft. above the starting point. The valve was slightly opened,and the balloon was then manoeuvred by means of the motorinto the most convenient spot for the descent, which was about80 yards above the parade ground. The guide rope was caught. Fig. 28.—The balloon La France, built bv Kenard and Krebs. by the soldiers, and the balloon was safely landed, after havingcovered rather less than 5 miles in 23 minutes. A second expedition was less successful. The wind was ratherstronger, and drove the balloon before it. The arrangementsconnected with the motor were injured, and a descent had to bemade at a distance of 3 miles from the starting point. Theballoon was then carried back to Chalais. On the third occasionthe course was directed against the wind towardsBillancourt. In order to determine the velocity of the wind,Renard stopped the motor and let the balloon drift. He thenfound that the wind was blowing at the rate of 5 miles an hour,, 7 ft. per second, while the velocity due to the motor wasUJ miles an hour, or 7 yards per second. The balloon was thenbrought to land at th
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