There're 4 aircraft made by Experimental.
| N2491 | 1968 Experimental MAYFIELD III | 103 | 1 | 2 | CA, |
| N4907E | 1958 Experimental GYRO-COPTER | 10 | 1 | 2 | IN, |
| N5709 | 0000 Experimental GYROCOPTER | X-1 | 1 | 1 | GA, United States |
| N9911 | 1979 Experimental NEYS D260 | 522 | 1 | 2 | AZ, United States |
