airplanes are the same thing as hovercrafts... but only hovercrafts have a louder engine
They both (some airplanes do) use propeller's.
All gliders are airplanes, but not all airplanes are gliders.
Birds and airplanes both have wings.
Yes, there are thousands of different airplanes.
on a cushion of air
yes
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, hovercrafts are still used today in various applications. They serve in transportation, particularly in regions with shallow waters or marshy terrains, and are utilized for rescue operations, military purposes, and tourism. Additionally, hovercrafts are employed in some commercial and industrial applications where their unique ability to traverse different surfaces is advantageous. Their versatility continues to make them relevant in specific niches.
yes.
4 ft
6 inches