yes
airplanes are the same thing as hovercrafts... but only hovercrafts have a louder engine
Hovercrafts are used today for various applications, including transportation over water and land, search and rescue operations, and military missions. Their ability to navigate shallow waters and marshy terrain makes them ideal for emergency response in difficult environments. Additionally, hovercrafts are utilized in tourism for scenic tours and in some commercial activities like ferry services. They are also employed in specialized roles such as environmental monitoring and oil spill response due to their low environmental impact.
on a cushion of air
hovercrafts
Why are you asking where to find hovercrafts? But I would have to say, that scientists are trying to build some, or aliens are, but you should have known that already.
yes.
4 ft
6 inches
Very good conditions!
walk
They both fly I think 
Worldwide hovercartfs are being used by Military. Here some more examples of who else is using hovercrafts: Australian EPA, Red Cross, United Nations, Argentinean Coastguard many rescue, patrol, commercial, port, oil exploration, survey operators. Many SuperYacht owners have selected the Hovercraft to entertain their guests. http:hover-craft.us