We're looking at the index of the book now — Page 535, Lesson 650

We're looking at the index of the book now. This is the map of the whole territory we're about to cover. Let me walk you through the key landmarks you'll be visiting, because this index tells you exactly what a professional pilot must master. Starting with the letter E. You'll see "Effect of Variable Factors on Landing Distance" at page 155. This is about how things like weight, wind, and runway surface change how far your aircraft needs to stop. Then "Elevation" at page 5 — that's your altitude above sea level, and it matters because it changes air density, which changes engine and wing performance. Now, the acronyms. EMD, EMDA, EMDR — all on page 12. These are critical for take-off performance. EMD is "Emergency Distance" — the distance available for an emergency. EMDA is "Emergency Distance Available," and EMDR is "Emergency Distance Required." The distinction between what's available at the airfield and what your aircraft requires is the heart of safe take-off planning. You'll also see "Emergency Distance Available" spelled out at page 23. "Endurance" at page 118 — that's how long you can stay airborne on your fuel. "En route" at page 5 — that's the phase of flight between take-off and landing, when you're cruising to your destination. You'll see "En Route And Descent Requirements" at page 191, "En Route Phase" at page 319, and "En Route Requirements" at page 229 — these are the regulatory and performance rules you must satisfy while cruising and descending. "Equivalent Airspeed (EAS)" at pages 5 and 114 — this is calibrated airspeed corrected for compressibility effects at high speed and altitude. It's the speed that relates directly to the aerodynamic forces on your aircraft. "ETOPS" at pages 12 and 334 — Extended-range Twin-engine Operational Performance Standards. This is the certification that lets twin-engine aircraft fly routes far from diversion airports, and it's a big deal for long-haul operations. "Excess Power Available" at pages 75 and 76 — that's the power you have beyond what's needed for level flight, and it's what drives your climb. "Excess Thrust" at page 45 — similarly, the thrust beyond what's needed to maintain speed, which gives you acceleration. "Exhaust Gas Temperature" at page 5 — that's EGT, a key engine instrument you monitor to manage engine health and fuel flow. Moving to F. "Factors Affecting Angle of Climb" at page 61 — what makes your climb path steeper or shallower. "Factors Affecting Descent" at page 99 — what controls how you come down. "Factors Affecting Endurance" at page 120 and "Factors Affecting Range" at page 127 — range is how far you can fly, endurance is how long; they're related but different, and each has its own set of influencing factors. "Factors to Be Accounted for" at page 171 — this is about the variables you must consider in performance calculations. "Field Length Requirements" at pages 216 and 247 — the runway length you need for take-off and landing. "Field Limit Brake Release Mass" at page 264 — this is the maximum take-off mass allowed by the runway length available; you release the brakes at this mass and you'll just make it. "Final En Route Climb Speed" at page 5, "Final Segment Speed" at page 5, and "Final Take-off Speed" at page 5 — these are the specific speeds for different phases of the take-off and climb profile. "Fixed Pitch Propeller" at page 6 — a propeller whose blade angle is fixed, common on simpler aircraft. And "Flap Extended Speed" — that's the maximum speed you can fly with flaps out, which you'll see on the next page. This index is your roadmap. Every one of these terms is a topic we'll dig into properly. For now, just know where things live and what they mean at a glance.