A tailwheel is a small wheel at the back of some airplanes. It helps the plane stay balanced when it's on the ground.
Tailwheels are important for airplanes to move safely on the ground.
Examples:
The small airplane has a tailwheel at the back.
Planes with tailwheels look different from planes with front wheels.
The pilot checks the tailwheel before taking off.
The tailwheel says, 'I like being in the back!'
The tailwheel is the happiest part of the plane.
The tailwheel helps the airplane to be safe.