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Musabakri1@yahoo.com

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-

200

6-12

.

1887 .

.

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3

()

.

.

-

()

.

-

.

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4

-

1

-

..

.

.

-

-

,

.

.

0.4,

46

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5

.

:

5.

.

50500..

.500.

500

.1000

.

.1000

.

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-

-

-

.

1919(Albert Betz)

(0.593)

.

(75%

85%)

.

((Frederik.w.Lanchester1915

(Zhukovsky)

1920.

.

:

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7

-

1-

.

2-

(

).

3-

.

-4

.

-: = .1. 1 = . . = .2 . 2

v1

A1v1

v

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v2

A2v2

()

S

: = . = . =

:

= .= . . . (1 2)

-: = . = .

= . . 2. 1 2 _______________(1)

-:

= 12 .. 12 22 = =

1

2. . 12 22

= 12.. . . 12 22 ______(2)

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(1)(2):

. S .v2 . 1 2 = 12 . S. 12 22

. 1 2 = 12 1 21 + 2 = 1

21 + 2

(2):

= 14 .. 1 + 212 22=

1

4. . 13 122 + 212 23

=1

4. . . 13(1

212

+ 21 213

)

21= 1

3

1

2(1 1

32

+ 13 1

33

) =16

27

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-: = 1627 .1

2.. . 13

1: = 12 . . 1

2 = . . 1

= 12 . . 13

-

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=

-:

, =

=

16

27.1

2. ..13

1

2

.

.

13

=16

27= 0.593

(0.450.50)

(%75%85).