Usually under the wing or sometimes on the nose or the tail.
a small engine plane is a plane that is small
A plane without an engine is a glider, also referred to as a sail plane.
The forward force from a plane's engine is thrust.
Most commonly on the front attached to the fuselage. However, there are many variations. On a "pusher" the engine is at the back of the fuselage. The engine can be mounted above the wing and fuselage on some seaplanes.
The engine helps the plane to fly by proiding thrust and lift.
What are the procedures in a small plane and the engine fails
Thrust
A plane with no engine is a glider. They use the air currents to stay aloft.
The forward force from a plane's engine is called THRUST.
They eliminate propeller torque as a reason for the aircraft to have a critical engine. When a plane has two engines, the one that will most affect the plane's handling if it quits is called the critical engine. If a twin loses one engine in flight, the plane will turn toward that engine. But in a critical-engine situation, the plane will turn more sharply toward one side. On a clockwise-prop plane the port engine is critical; the starboard engine is critical on a counterclockwise-prop plane. This doesn't necessarily mean the plane doesn't have a critical engine. A plane might have one hydraulic pump. If the engine running it dies, you're going to have to strong-arm the plane back to the ground.
what is a airplane engine called
there is yet to be made a plane engine "guard". maybe in a few years. :)