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Home > History and Archaeology > History > The Conquest of the Air, Aeronautics, Aviation, History; Theory Practice: (English)
The Conquest of the Air, Aeronautics, Aviation, History; Theory Practice: (English)

The Conquest of the Air, Aeronautics, Aviation, History; Theory Practice: (English)

          
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About the Book

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 Excerpt: ... in such a way that it rights itself by its own effort. Now an aeroplane must be considered in two phases of movement; that in a straight line and that in a curved line, otherwise called "turning." In the case of the straight line movement, the lateral stability is, if not ensured, at least very adequately fulfilled by the spread of the supporting surfaces, the stretch of which counteracts sudden inclination. Moreover, the centre of gravity of the contrivance is always below the supporting planes (or the surface which would be equivalent to them) on account of the weight of the motor and passenger, a weight which would tend to right the apparatus if it were to incline unexpectedly. But this is no longer the case when, describing a curved line, the aeroplane is turning. Then there intervenes a complex phenomenon which causes it to incline "within" the turn, that is to say towards the centre of the circle which the machine describes. This phenomenon is the unequal resistance of the air upon the two extremities of the supporting wings. Let us consider an aeroplane (Fig. 55) turning about a centre, and let us suppose, to obtain a proper idea thereof, that the spread of this aeroplane is 10 metres; the circle which the centre of the machine itself describes will have, consequently, a radius of 15 metres. It is seen that, under these conditions, the extremity A of the wing turned towards the centre will describe during a certain time the arc of the circle AA', in passing from position (1) to position (2), whilst the outer extremity B of the same wing will describe, during the same time, the arc of the circle BB', double the length of AA'. The exterior extremity B must, therefore, travel twice as far during the turn as the interior extremity, t...


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Product Details
  • ISBN-13: 9781231104804
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 72
  • Series Title: English
  • Weight: 145 gr
  • ISBN-10: 1231104805
  • Publisher Date: 09 May 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Spine Width: 4 mm
  • Width: 189 mm


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