| Tail Number / N-Number | N129MG |
| Manufacturer | ALEXANDER SCHLEICHER GMBH & CO |
| Model | ASW 27-18 |
| Manufacturer's Serial Number | 29081 |
| 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) |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | BLIEDEN IRA A |
| Street | 118 WHILEY RD |
| City | GROTON |
| State | MA |
| Zip Code | 01450-2222 |
| Region | New England |
| County | Middlesex County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2015-06-11 |
| Last Action Date | 2021-02-12 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 50073073 |
| Mode S Code Hex | A0763B |