The Servomotor appears at page 354 — Page 663, Lesson 794

This is the index of the book — the map of the whole Instrumentation volume. I want to walk you through the entries we have here, because they tell you exactly what topics we're going to cover and where they live. Let's start with the altimeter family. We have the Simple Altimeter at page 55, then Servo-assisted Altimeters at page 59, and Servo-assistance itself at page 59 as well. The Servomotor appears at page 354. So you can see the progression: a simple altimeter, then a servo-assisted version, and the servomotor is the component that does the work in that assisted system. Now, the Slip Indicator is at pages 185 and 187, and it's tied to Side-slipping at page 17, Skidding out at page 188, and Slipping in at page 188. These are all about the lateral balance of the aircraft — the slip indicator tells you whether you're slipping or skidding. We also have the Slaved Gyro Compass at page 211, with SLAVE and SLAVED both at page 219, and the Slaving Amplifier at page 211. This is the compass system that gets corrected, or slaved, to the magnetic heading. Then there's the Shock Wave at page 83 — that's an aerodynamics term, the pressure wave that forms at supersonic speeds. And Soft Iron at page 109, with Soft Iron Magnetism at page 202 — that's about the magnetic materials that affect the compass. In the electronics and communications area, we have SHF at page 264 — that stands for Super High Frequency. SITA at page 328, and its full expansion at page 318: Société Internationale de Télécommunications Aéronautiques — that's the international aeronautical telecommunications organisation. Signal Processor is at page 354, Software at page 309, and Software Used in Aircraft at page 310. We also have Shift Registers at page 308 — that's a digital electronics component. SG and SGs both at page 281 — those are likely strain gauges, but the index just lists them. Single Mode at page 272. Serviceability Checks at page 176. And Space Gyros at the end, which is cut off. So this index gives you the full landscape — from altimeters and gyro compasses to shock waves, soft iron magnetism, and digital signal processing. Each of these entries is a topic we'll dig into as we go through the book.