| Tail Number / N-Number | N21HN |
| Manufacturer | SCHLEICHER |
| Model | ASK-21 |
| Manufacturer's Serial Number | 21266 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Type of Registrant | Co-Ownership |
| Owner Name | CALVERT SCOTT R |
| Other Names |
|
| Street | 59 COLFAX DR |
| City | PEQUANNOCK |
| State | NJ |
| Zip Code | 07440-1016 |
| Region | Eastern |
| County | Morris County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2008-09-23 |
| Last Action Date | 2021-05-20 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 50333745 |
| Mode S Code Hex | A1B7E5 |