the dynamics of mechanical flight1912 |
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Seite 15
... angle a , the vertical aspect in front elevation is A sin a ft ; and the air received on the plane is ( 5 ) QA sin a ft 3 / sec , or QA sin a , C lb / sec . Taking the air particles as inelastic , they slide along the plane after impact ...
... angle a , the vertical aspect in front elevation is A sin a ft ; and the air received on the plane is ( 5 ) QA sin a ft 3 / sec , or QA sin a , C lb / sec . Taking the air particles as inelastic , they slide along the plane after impact ...
Seite 18
... angle a the lift varies more nearly as sin a than ( sin a ) 2 , much greater than given by the ancient theory . Applying this again to Maxim's machine at a speed Q = 100 f / s , the lift ( 22 ) T = 4,000 20 ( 100 ) * 2 × 0.7854 × 0.2 ...
... angle a the lift varies more nearly as sin a than ( sin a ) 2 , much greater than given by the ancient theory . Applying this again to Maxim's machine at a speed Q = 100 f / s , the lift ( 22 ) T = 4,000 20 ( 100 ) * 2 × 0.7854 × 0.2 ...
Seite 20
... angle the stream at IJJ ' makes with the plane AA ' , and N is a constant . In the notation of this subject ( 26 ) z = x + yi , w = φ + ψί , denoting the velocity function at the points ( x , y ) such that do the velocity q is given by ...
... angle the stream at IJJ ' makes with the plane AA ' , and N is a constant . In the notation of this subject ( 26 ) z = x + yi , w = φ + ψί , denoting the velocity function at the points ( x , y ) such that do the velocity q is given by ...
Seite 22
... angle a , in radians , we may replace ( 42 ) a by sin a sin3 a , and cos a by 1 --- giving the approximation ( 43 ) 44 BA ' 17 AA ' 48 www sin a . Thus at a slope of 1 in 5 , sina - sin3 a , BA ' 1 sin a = 0.2 , = = 0.0005 AA ' 2,000 ...
... angle a , in radians , we may replace ( 42 ) a by sin a sin3 a , and cos a by 1 --- giving the approximation ( 43 ) 44 BA ' 17 AA ' 48 www sin a . Thus at a slope of 1 in 5 , sina - sin3 a , BA ' 1 sin a = 0.2 , = = 0.0005 AA ' 2,000 ...
Seite 24
... angles to the current with a = ; as L moves away from F ' , a dimin- ishes to zero when FLAA ' ; as L is placed still further away from F , the plane AA ' still remains in the line of the stream . The vane of a weathercock could thus be ...
... angles to the current with a = ; as L moves away from F ' , a dimin- ishes to zero when FLAA ' ; as L is placed still further away from F , the plane AA ' still remains in the line of the stream . The vane of a weathercock could thus be ...
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