The Mechanical Principles of the Aeroplane
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In our eReader you can find the full English version of the book. Read The Mechanical Principles of the Aeroplane Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Mechanical Principles of the Aeroplane
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There are six unknown quantities, which are to be determined by these equations and which define the motion of the parachute. These are w 19 u 2, M 3, 0, <, ^. Now w 2 only occurs in the second equation, and this equation only involves M 2, since b y is a constant which is presumably known. Also -^ only occurs in the fifth equation, and this equation only involves ^, since e^ is a known constant. Thus the second equation determines u 2 completely, and the fifth equation determines -^ completely....
OF THE AEROPLANE 119 Further, u and only occur in the first and sixth equations, and these equations only involve w x and 0. Hence u^ and 6 are completely determined by these two equations. Finally, u s and are completely determined by the second and fourth equations.
The disturbed motion is thus given by 2 = w 20 e *, -^. = o> 2 = o> 20 e ; (140) (141) ( Ar t )M 3 + (Z) 2 + fc^D ) =0 J ' ^ 142) wher'e // 20 is the value of u 2 at t = 0, to, the value of o> 2 or d^rldt at = 0, andZ> = We may assume a priori that b y and 2 are both positive, so that an increased downward velocity gives an increased upward air pressure, and a rotation about a vertical axis is opposed by a sort of frictional resistance.
What to read after The Mechanical Principles of the Aeroplane?
You can find similar books in the "Read Also" column, or choose other free books by Selig Brodetsky to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
There are six unknown quantities, which are to be determined by these equations and which define the motion of the parachute. These are w 19 u 2, M 3, 0, <, ^. Now w 2 only occurs in the second equation, and this equation only involves M 2, since b y is a constant which is presumably known. Also -^ only occurs in the fifth equation, and this equation only involves ^, since e^ is a known constant. Thus the second equation determines u 2 completely, and the fifth equation determines -^ completely....
OF THE AEROPLANE 119 Further, u and only occur in the first and sixth equations, and these equations only involve w x and 0. Hence u^ and 6 are completely determined by these two equations. Finally, u s and
The disturbed motion is thus given by 2 = w 20 e *, -^. = o> 2 = o> 20 e ; (140) (141) ( Ar t )M 3 + (Z) 2 + fc^D ) =0 J ' ^ 142) wher'e // 20 is the value of u 2 at t = 0, to, the value of o> 2 or d^rldt at = 0, andZ> = We may assume a priori that b y and 2 are both positive, so that an increased downward velocity gives an increased upward air pressure, and a rotation about a vertical axis is opposed by a sort of frictional resistance.
What to read after The Mechanical Principles of the Aeroplane?
You can find similar books in the "Read Also" column, or choose other free books by Selig Brodetsky to read onlineMoreLess
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