| Tail Number / N-Number | N517BK |
| Manufacturer | SCHEMPP HIRTH |
| Model | NIMBUS II |
| Manufacturer's Serial Number | 145 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | 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 | HARBISON MICHAEL J |
| Street | PO BOX 847 |
| City | MINDEN |
| State | NV |
| Zip Code | 89423-0847 |
| Region | Western-Pacific |
| County | Douglas County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1979-07-20 |
| Certificate Issue Date | 2020-11-12 |
| Last Action Date | 2020-11-12 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 51475623 |
| Mode S Code Hex | A67B93 |