| 11. | An additional use of this rule-of-thumb is on final approach which generally has a 3 degree vertical angle.
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| 12. | Weapon trajectories can be controlled so that a target can be impacted at precise headings and vertical angles.
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| 13. | Simple trigonometry using the range and the known fixed vertical angle of the beam revealed the shell's vertical location.
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| 14. | Riveted horizontal pairs of angles form flanges to which are attached vertical angles which transmit the load to supports.
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| 15. | In orbit, the body was rolled so that the beam was directed at a vertical angle of 55?from horizontal.
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| 16. | In typical systems, the scanner would be mounted so that it could be quickly pointed at two different vertical angles.
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| 17. | The target tracking radar detected and tracked an assigned air target automatically in lateral and vertical angle and at a distance.
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| 18. | Elevations were measured by a clinometer, a device using a spirit level to measure a vertical angle from the horizontal plane.
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| 19. | If a vang is not installed, then the sheet has to try to control both horizontal and vertical angles of the boom.
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| 20. | You need to be able to measure the vertical angle of X from your horizon, and for this you need a Sextant.
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