Answer: Hello the text related to your question is missing but I will provide a General answer based on the scope of your question
answer : Propeller produces some sort of propulsion which enables the airplane move forward through air
Step-by-step explanation:
An Airplane is composed of several parts ; which includes the Engines , Fuselage , wings , cockpit , propeller and so many other parts which are all essential for the airplane to function effectively. But the Propeller plays a very Major role in an airplane because it produces some sort of propulsion which enables the airplane move forward through air hence an airplane would not be able to fly ( move forward through air ) without its propeller .