Flight Training Instruction - Cnatra - U.S. Navy

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CHAPTER SIX T-6B PRIMARY INSTRUMENT NAVIGATION station off the airway is used to identify the intersection, it is called the secondary station. Intersections are used to help determine the aircraft’s position along airways. Procedure. 1. Determine the ETA to the intersection. 2. Three to five minutes prior to the ETA: a. Tune and identify the secondary station, and check the position of the VOR needle. Do not change the course in the CDI. b. If the tail of the needle is not within 10° of the intersection radial: i. Retune the primary station and continue to track. ii. Wait a maximum of one minute. iii. Retune the secondary station, and once again, check to see if the tail of the needle is within 10° of the intersection radial. iv. Keep repeating until the tail of the needle is within 10° of the intersection radial. c. If the tail of the needle is within 10° of the intersection radial: i. Set the desired course in the CDI. ii. Hold the drift corrected heading carefully. This is the only means of remaining on the airway. iii. If passing straight through the intersection, wait for the CDI to center and note the time. Other than using the FMS, this will be the only means of remaining on course. If turning at the intersection, lead the turn to roll out on the new course and note the time when wings level, regardless of the position of the CDI. The distance to the secondary station must be considered when determining the number of degrees to lead the turn to the new course. iv. If passing straight through the intersection, retune the primary station after passing the intersection. 3. Give a voice report if required. 4. If already passed the intersection, make the turn to the new course if required, estimate the time the intersection was passed, retune the NAVAID as required, and continue to track and give a voice report if required. 6-10 ENROUTE PROCEDURES
T-6B PRIMARY INSTRUMENT NAVIGATION CHAPTER SIX 608. POINT TO POINT General. Fly in the most direct path from a starting point to a radial and DME from a station. Description. If cleared direct to the fix, the pilot may be radar vectored or employ Point to Point (PTP) navigation. When cleared direct from one point to another, you must determine the heading to fly. One method of determining this is to plot both points on a suitable chart and connect them with a straight line. The heading to fly is the heading along this line. An alternate method, which eliminates cumbersome charts and line drawing, will require you to visualize the aircraft’s present position and the desired fix on the compass card of the HSI. This method may be used to navigate directly to any fix within reception range of the NAVAID. The following concepts will aid in developing this ability. 1. The station is always at the center of the compass card. The compass card is merely a compass rose around the station. 2. The fix having the greater distance is always established on its radial at the outer edge of the compass card. 3. The remaining fix is established along its radial at a proportional distance from the center of the compass card. When applying the above concepts, the compass card can be thought of as a chart. On this chart, the aircraft’s present position, the desired fix, and the station (at the center) can be plotted. With an actual chart, draw a line between the two fixes to determine the no–wind heading. Using the compass card, visualize this line between fixes. The following example (Figure 6-1) demonstrates the procedures for flying from one fix to another fix. The aircraft is on the 180º radial at 20 NM and you want to navigate to the 90º radial at 10 NM. Procedure. 1. Tune and identify the NAVAID. 2. Set the desired radial in the CDI. 3. Turn to a heading approximately halfway between the head of the bearing pointer and the head of the CDI. - Adjustments may be made to the rollout heading. If going to a smaller DME, favor the head of the needle. If going to a larger DME, favor the desired radial. 4. Update the heading enroute and make appropriate corrections (pencil method). The Pencil Method 5. Establish the fix with the greater distance (20 NM) at the edge of the compass card on its radial (180º). ENROUTE PROCEDURES 6-11
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NAVAL AIR TRAINING COMMAND NAS CORP
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SAFTEY/HAZARD AWARENESS NOTICE This
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CHAPTER EIGHT T-6B PRIMARY INSTRUME
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CHAPTER NINE T-6B PRIMARY INSTRUMEN
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CHAPTER TEN T-6B PRIMARY INSTRUMENT
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CHAPTER ELEVEN T-6B PRIMARY INSTRUM
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APPENDIX A T-6B PRIMARY INSTRUMENT
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APPENDIX B T-6B PRIMARY INSTRUMENT
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Flight Training Instruction - Cnatra - U.S. Navy

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