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Performance & Weight-and-Balance: Commercial Pilot Airplane Knowledge Test (CAX) topic guide

Performance & Weight-and-Balance carries 22% of the Commercial Pilot Airplane Knowledge Test (CAX) blueprint used in this course, the second-largest of its 6 weighted areas. It spans 14 concepts. The course teaches it in 3 study units: Weight & Balance — CG Fundamentals, CG Shift — Moving & Adding/Removing Weight and Performance Charts — Density Altitude, Takeoff & Landing.

What Performance & Weight-and-Balance covers

  • What is the fundamental weight-and-balance equation, and how do you find the aircraft's CG — FAA-H-8083-1 Chapter 4
  • An aircraft has the following loading: empty weight 1,840 lb at arm 41.2 in, pilot+front p — FAA-H-8083-1 Chapter 4
  • A second loading scenario: empty weight 2,010 lb at arm 39.5 in; pilot 200 lb at arm 35.0 — FAA-H-8083-1 Chapter 4
  • How does a forward CG affect aircraft handling compared to an aft CG? Which CG extreme is — FAA-H-8083-25B Chapter 5
  • Define: empty weight, useful load, payload, and maximum gross weight. What is the relation — FAA-H-8083-1 Chapter 2
  • What is the CG-shift formula used when weight is MOVED from one location to another? — FAA-H-8083-1 Chapter 4
  • WORKED PROBLEM: An aircraft weighs 3,000 lb with CG at 45.0 in. A 120 lb passenger moves f — FAA-H-8083-1 Chapter 4
  • WORKED PROBLEM: Aircraft gross weight 2,750 lb, CG at 44.2 in. A 90 lb bag is removed from — FAA-H-8083-1 Chapter 4
  • What is the direction trap in CG-shift problems, and when does it cause the most errors on — FAA-H-8083-1 Chapter 4
  • What is density altitude, and why does it degrade aircraft performance? — FAA-H-8083-25B Chapter 10
  • How do you compute pressure altitude from an altimeter setting, and what is the standard l — FAA-H-8083-25B Chapter 10
  • WORKED EXAMPLE — Chart reading: An aircraft performance chart shows takeoff distance at se — FAA-H-8083-3B Chapter 5
  • How do headwind and tailwind affect takeoff and landing distance, and what is the runway l — FAA-H-8083-3B Chapter 5
  • What is the 'wrong line' trap in performance chart reading, and how does interpolation wor — FAA-H-8083-3B Chapter 5

Official references for Performance & Weight-and-Balance

  • FAA-H-8083-1 Chapter 4
  • FAA-H-8083-25B Chapter 5
  • FAA-H-8083-1 Chapter 2
  • FAA-H-8083-25B Chapter 10
  • FAA-H-8083-3B Chapter 5

In the app this area comes with 14 memory cards and 26 module-quiz questions in the full course.

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