| Tail Number / N-Number | N821NM |
| Pending N-Number Change | N912BE |
| Manufacturer | SOCATA |
| Model | TB 30 EPSILON |
| Year Built | 1984 |
| Manufacturer's Serial Number | 06 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | AEIO540-L1B5D |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | LLC |
| Owner Name | ESTES AVIATION LLC |
| Street | PO BOX 9003 |
| City | RAPID CITY |
| State | SD |
| Zip Code | 57709-9003 |
| Region | Great Lakes |
| County | Pennington County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2019-06-13 |
| Certificate Issue Date | 2021-07-20 |
| Last Action Date | 2021-07-20 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52632712 |
| Mode S Code Hex | AB35CA |