What happens if the Loudhailer is pointed at the fuselage when in use?

When the Loudhailer is pointed at the fuselage while in use, it causes screeching due to the reflection of sound waves off the aircraft's surface. The fuselage, being a solid and smooth structure, reflects the sound back, creating feedback that results in high-pitched screeching noises. This phenomenon occurs because the sound emitted from the Loudhailer can bounce back into the microphone or speaker area, interfering with the intended output and producing unwanted noise.

This situation highlights the importance of proper usage and positioning of communication devices like the Loudhailer to ensure clear communication, especially in aviation contexts where misunderstandings can have serious implications. Understanding how sound interacts with different surfaces is key to achieving optimal performance from audio equipment.