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PH.VII.A.S6

Skill

Correct for and record the differences between preflight fuel, groundspeed, and heading calculations and those determined en route.

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Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

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From the FAA library

  • Chapter 16: Navigation › Dead Reckoning › Wind Triangle or Vector Analysis

    time, airspeed, distance, and direction. The products derived from these variables, when adjusted by wind speed and velocity, are heading and GS. The predicted heading takes the aircraft along the intended path and the GS establishes the time to arrive ... destination. Except for flights over water, dead reckoning is usually used with pilotage for cross-country flying. The heading and GS, as calculated, is constantly monitored and corrected by pilotage as observed from checkpoints. Wind Triangle or Vector Analysis…

  • Chapter 17: Aeromedical Factors › Health and Physiological Factors Affecting Pilot Performance › Vestibular Illusions

    response to such an illusion, a pilot may lean in the direction of the original turn in a corrective attempt to regain the perception of a correct vertical posture. Coriolis Illusion The “coriolis illusion” occurs when a pilot has been ... fluid in the ear canal to move at the same speed as the canal. A movement of the head in a different plane, such as looking at something in a different part of the flight deck, may set the fluid…

  • Chapter 16: Navigation › Charting the Course › Steps in Charting the Course

    distance between checkpoints is as noted on the flight log in Figure 16-26. After determining the distance, the TC should be measured. If using a plotter, follow the directions on the plotter. The TC is 031°. Once ... established, the pilot can determine the compass heading. This is done by following the formula given earlier in this chapter. The formula is: TC ± WCA = TH ± V = MH ± D = CH The WCA can be determined by using a manual…

  • Chapter 4: Helicopter Components, Sections, and Systems › Centrifugal Clutch › Fuel Supply System

    fuel filter removes moisture and other sediment from the fuel before it reaches the engine. These contaminants are usually heavier than fuel and settle to the bottom of the fuel filter sump where they can be drained ... pilot. Figure 4-22. A typical gravity feed fuel system, in a helicopter with a reciprocating engine, contains the components shown here. Some fuel systems contain a small hand-operated pump called a primer. A primer allows fuel…

  • Chapter 16: Navigation › Dead Reckoning › Step 4

    compass heading can be used to fly to the destination by dead reckoning. To determine the time and fuel required for the flight, first find the distance to your destination by measuring the length of the course line drawn ... divide by the GS of 88 knots, which gives 2.5 hours, or 2:30, as the time required. If fuel consumption is 8 gallons an hour, 8 × 2.5 or about 20 gallons is used. Figure 16-22. Finding true heading…

  • Chapter 17: Aeromedical Factors › Health and Physiological Factors Affecting Pilot Performance › Diving or Rolling Beyond the Vertical Plane

    toward a 30° or 40° angle of bank. As this is in progress, the pilot tilts his or her head forward, looks to the right or left, then immediately returns his or her head to an upright position. The instructor ... pilot should time the maneuver so the roll is stopped as the pilot returns his or her head upright. An intense disorientation is usually produced by this maneuver, and the pilot experiences the sensation of falling downward into the direction…