propellers

the boat's propellers were spinning rapidly.

propellers are essential for the operation of aircraft.

he adjusted the pitch of the propellers for better performance.

we need to clean the propellers to ensure efficiency.

propellers can be found on various types of boats.

the engineer designed new propellers for the submarine.

propellers create thrust to propel the vessel forward.

some drones use multiple propellers for stability.

the sound of the propellers was deafening during takeoff.

he is studying the aerodynamics of propellers in his research.