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Figure 11.3. Celestial Line of Position Using True Azimuth Method................................................ 242
11.5. Plotting LOP Using Flip-Flop Method (Figure 11.4) .................................................... 242
11.6. Summary of Intercept Method ....................................................................................... 242
Figure 11.4. Plotting Celestial Line of Position Using Flip-Flop Method ......................................... 243
11.7. Additional Plotting Techniques...................................................................................... 244
Section 11B Interpretation of an LOP
11.8. Basics ............................................................................................................................. 244
11.9. Single LOP ..................................................................................................................... 245
Figure 11.5. Two Methods of Coriolis/Rhumb Line Correction ........................................................ 245
Figure 11.6. Two Corrections of Coriolis/Rhumb Line and Precession/Nutation Correction ........... 246
11.10. Most Probable Position (MPP) by C-Plot ...................................................................... 246
Figure 11.7. Most Probable Position by C-Plot.................................................................................. 246
Figure 11.8. To Solve for Distance..................................................................................................... 247
11.11. Finding a Celestial Fix Point.......................................................................................... 248
Section 11C Conversion of LOPs to a Common Time
11.12. Moving the LOP............................................................................................................. 248
Figure 11.9. Conversion of Lines of Position to a Common Time .................................................... 248
11.13. Motion of Observer Tables ............................................................................................ 249
11.14. Moving the Assumed Position ....................................................................................... 249
Figure 11.10. Entering Arguments Are Relative True Azimuth and Groundspeed ............................. 250
Figure 11.11. Moving Assumed Positions............................................................................................ 251
11.15. Planning the Fix ............................................................................................................. 251
Figure 11.12. Effect of Cut on Accuracy of a Fix ................................................................................ 252
Figure 11.13. Effect of Azimuth on Accuracy of Fix........................................................................... 252
11.16. Summary ........................................................................................................................ 253
Chapter 12—SPECIAL CELESTIAL TECHNIQUES
Section 12A Introduction
12.1. Basics ............................................................................................................................. 254
12.2. Determining Availability of Celestial Bodies ................................................................ 254
Figure 12.1. A Quick Check of Body Availability............................................................................. 254
12.3. Latitude by Polaris ......................................................................................................... 254
Figure 12.2. Polaris Q Correction and Azimuth Tables From the Air Almanac ................................ 256
Figure 12.3. Plotting the Polaris LOP................................................................................................. 257
Section 12B LHA Method of Fixing
12.4. LHA Method of Obtaining Three-Star Fix .................................................................... 258
AFPAM11-216 1 MARCH 2001 13
Figure 12.4. Typical Example of Three LHA Method ....................................................................... 259
Figure 12.5. Plotting Three LHA........................................................................................................ 260
Figure 12.6. Half Motions Three LHA Format................................................................................. 261
Figure 12.7. Plotting a Half Motions Observation ............................................................................. 262
Section 12C Daytime Celestial Techniques
12.5. Basics ............................................................................................................................. 262
12.6. The Sun Heading Shot at High Noon............................................................................. 262
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F16 Flying Operations AIR NAVIGATION(13)
