Oil Field Engineering Volume 13

Oil Field Engineering Volume 13

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...striking example of the destructive power of this gyroscopic force in the failure of the Wellman airship voyage. This ship was provided with a "stabilizer," composed of wooden floats and gasoline tanks, that trailed in the water and was attached to the ship by cables. The rise and fall of this-stabilizing device set up a rocking motion in the airship and created gyroscopic force in the revolving parts of the motors to such a degree that it became highly unsafe to operate them, and they were forced to stop the motors and drift at the mercy of the wind and waves until picked up by a passing steamer. Although the airship was equipped with ample motor power and supplied with sufficient fuel to have enabled it to cross the Atlantic ocean, they were unable to use any of this power, owing to the gyroscopic force, and had they persisted in operating the motors it would soon have torn to pieces the entire structure of the airship. In the accident that caused the death of Chavez, and also in the more recent ones that killed Moisant and Hoxsey, the aviators had just finished a long glide, and while traveling at a terrific speed, suddenly changed their paths from an angle of 30 degrees to that of a horizontal one. In each of the above cases the motors were running at highest speed and were all revolving anti-clockwise All the published accounts of these accidents agree in that "at the point where the elevator was raised to alter the gliding angle the machine seemed to shudder for an instant, turn slightly to the left and plunge downward." This tallies exactly with dozens of my experiments, conducted to demonstrate the cause of these accidents, and in not one instance has my apparatus failed to act just as did these aeroplanes when...show more

Product details

  • Paperback
  • 189 x 246 x 23mm | 785g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236744594
  • 9781236744593