Planes need rudders.

Meaning: Pilots need rudders to help them control the movement of the plane while it is in the air.

Choice of Words: Planes are aircraft that are able to fly through the air. Need means that something is required or necessary. In this sentence, rudders are necessary for planes to be able to fly and steer properly.

Alternative Expressions

Aircraft require steering mechanisms.

Meaning: This means the same thing as the first sentence, but it uses more sophisticated language.

Choice of Words: **Aircraft** is another word for planes. **Require** is a more formal way of saying need. **Steering mechanisms** are devices that help control the direction of a vehicle.

Flying machines must have devices to adjust their course.

Meaning: This means the same thing as the first two sentences, but it uses even more descriptive language.

Choice of Words: **Flying machines** is a creative way of referring to planes. **Must** is a strong word that means something is absolutely necessary. **Devices** are objects that are used for a specific purpose. **Adjust** means to change or modify. **Course** refers to the direction in which something is moving.

Related Expressions