T. Now, let's consider the power plant as one of the principle structural units of the
airplane. I think you know the meaning of the term 'power plant'.
S. Yes, I do. The term 'power plant' means 'силова установка'.
T. What does it provide?
S. As far as I remember it provides power for flight.
T. Does it propel the airplane in flight?
S. Yes, it does.
T. The power plant contains an engine or engines and some systems. What is the essential part of the power plant?
S. Let me see The engine provides power for flight, so it is the most essential part of the power plant.
T. I am sure you know that there exist some types of engines. Can you name at least some of them?
S. I know two types of engines: piston and jet engines.
T. You are right. But you should know that jet engines are divided into three groups: gas-turbines, ram jets and rocket engines. Ram jet engine is translated into Ukrainian 'прямоточний повітряно-реактивний двигун'.