4-1 | 4-2 |
Δ - .
Δ - . ; , , z .
S - , .
- (.) . 0 360 . .
TVD - SB ( MD ) z. SB3.
HD - , . 3 ( z).
VS - ; , . 32.
, :
*
*
*
, , , , . TVD VS N/S E/W. , :
*
*
*
*
, . . .
, . , , , , .
. , , . , , , , .
. (. . 4-2). , , . , .
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|
D North | = | DMDsinI2cosA2 |
D East | = | DMDsinI2sinA2 |
D TVD | = | D MDcosI2 |
D Displacement | = | DMDsinI2 |
S- , , , , , .
, TVD . - , .
, .
.
, 1 I1 - , , :
DNorth | = | DMD/2 * (sinI1cosA1 + sinI2cosA2) |
D East | = | DMD/2 * (sinI1sinA1 +sinI2sinA2) |
DTVD | = | DMD/2 * (cosI1 + cosA2) |
DDisplacement | = | DMD/2 * (sinI1 + sinA2) |
, , , .
TVD .
, , - .
. (.4-3). , .
DNorth | = | DMD sin[(I1 + I2)/2]cos[(A1+A2)/2] |
DEast | = | DMD sin[(I1+I2)/2]sin[(A1+A2)/2] |
DTVD | = | DMDcos[(I1+I2)/2] |
DDisplacement | = | DMDsin[(I1+I2)/2] = Course Deviation (CD) |
DVertical Section | = | CDcos{[(A1+A2)/2] - Target Direction } |
, , .
4-3 | 4-4 |
, (. . 4-4).
, 1 2, (..4-5). MD, ( 1 2). I1 I2, . 4-16, - .
I , :
4-5 | 4-6 |
Rv = 180 * 180* DMD * [(I2 -I1)*p]-1
DH = Rv(cosI1-cosI2)
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|
, , Rh (c. . 4-6).
, :
Rh = 180 DH [ p (2-1)]-1
, :
DNorth = Rh(sinA2-sinA1)
DEast = Rh (cosA1-cosA2)
. ,