DURING A SIMULATED ENGINE OUT FORCED LANDING, THE AIRPLANE TOUCHED DOWN APPROXIMATELY 150 FEET SHORT OF RUNWAY 10 AT KENTMORR AIRPARK AIRPORT, NEAR STEVENSVILLE, MARYLAND. THE NOSE GEAR ENCOUNTERED SOFT GRASSY TERRAIN, SINKING APPROXIMATELY FOUR TO FIVE INCHES IN THE GROUND. THE AIRPLANE SLID APPROXIMATELY 70 FEET, NOSED OVER, AND SLID ANOTHER 30 FEET. THE AIRPLANE CAME TO REST, INVERTED, APPROXIMATELY 50 FEET FROM THE BEGINNING OF THE INTENDED RUNWAY. THE CFI STATED THAT THERE WERE NO MECHANICAL MALFUNCTIONS PRIOR TO THE TOUCHDOWN.