They are know as the undercarriage.
The landing gear is retracted after take-off. This is because, when the plane is flying at great speed the landing gear produces a lot of drag. This slows the plane down. So the landing gears are retracted.
Most wheels are not "spun up" prior to landing, and go from zero rpm to that of the plane's touchdown speed almost immediately upon contact with the ground.
No, an airplane does not have legs but the wheels and everything that holds up the rest of the plane is called the gear or landing gear.
If a plane didn't have landing gear(the wheels and the "legs") it would have to land sliding on its belly. It would be fairly uncomfortable, damage the plane, and on top it would be very hard to reach take off speeds like that.
The landing gear are the black things under an airplane that normal people call wheels. They let the plane roll to a stop without having to make a belly landing and damage the rest of the plane. In maintenance, it is important because of its critical function and the high stresses exerted on the landing gear.
Aircraft will automatically deploy their landing gear if they are being landed correctly.
· Conventional landing gear uses wheels to bear the weight of the plane on the ground. Planes use unconventional landing gear when they're not going to be landing on flat ground. They use pontoons to land on water and skis to land on snow.
a shuttle has wheels an Apollo has no wheels
a shuttle has wheels an Apollo has no wheels
The plane's landing gear is deployed as the plane is descending and nearing the runway.
the plane landing like a roket crashin gon the heat
Controlled crash landing