And now, here is Gloria Yamauchi to answer your questions. The nice thing about helicopters is that they can be used for all sorts of things. But if they are too noisy, the public will not accept them. Helicopters are often used in cities and other crowded areas, so what we want is a low-noise helicopter. You talked about working on tilt rotors.
Tilt rotors can take off and land like a helicopter and also fly like an airplane.
Tilt rotors don't need runways since they can land like a helicopter. We are hoping that tilt rotors will become a common mode of commercial transportation in a few years. We are so glad you agreed to chat with us. Unfortunately, we will not be able to be present during the chat at the scheduled time, but we hope you will be able to answer our questions. The wop-wop sound you often hear when a helicopter flies overhead is mainly caused by the rotor blades interacting or hitting part of its own wake.