| Tail Number / N-Number | N101CY |
| Manufacturer | AC COOPERATIVE |
| Model | AC 4 |
| Year Built | 1994 |
| Manufacturer's Serial Number | 007 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | HARRIS G PAUL |
| Street | 31675 VISTA DR |
| City | EVERGREEN |
| State | CO |
| Zip Code | 80439-7509 |
| Region | Northwest Mountain |
| County | Jefferson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2015-06-12 |
| Certificate Issue Date | 2021-01-26 |
| Last Action Date | 2021-01-26 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 50004264 |
| Mode S Code Hex | A008B4 |