Even if you have no mechanical sense, you will find this section fascinating. And it’s a whole lot easier than you think. It’s important for you, as the pilot, to understand how things work because strangely you can usually do a lot to cure or work round any problems that might arise while you are flying. You are going to learn about four stroke engines, magnetos, carburetors, carb heat, the fuel system, the alternator that charges the battery, and engine cooling and lubrication. You also learn how some of the instruments work – the gyro instruments like the artificial horizon, the turn coordinator and the directional gyro, and the pressure instruments – being the ASI (airspeed indicator), the VSI (vertical speed indicator) and the altimeter. Also the faithful compass. And finally we look at how the air-frame and wings are made and how to make sure everything is structurally sound.