| Tail Number / N-Number | N257SB |
| Manufacturer | SCHEMPP-HIRTH |
| Model | DISCUS-2B |
| Year Built | 2002 |
| Manufacturer's Serial Number | 145 |
| 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 | DUNCAN MARVIN H JR |
| Street | 94 BEACON ST |
| City | MARBLEHEAD |
| State | MA |
| Zip Code | 01945-2623 |
| Region | New England |
| County | Essex County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2002-09-27 |
| Certificate Issue Date | 2002-08-20 |
| Last Action Date | 2020-12-17 |
| Expiration Date | 2028-05-31 |
| Status | Valid Registration |
| Mode S Code | 50471421 |
| Mode S Code Hex | A27311 |