| Tail Number / N-Number | N121SC |
| Manufacturer | BEECH |
| Model | D18S |
| Year Built | 1946 |
| Manufacturer's Serial Number | A-85 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 450 hp (336 kW) |
| Total Horsepower | 900 hp (671 kW) |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Individual |
| Owner Name | REGISTRATION PENDING |
| Street | 23982 ARNOLD DR |
| City | SONOMA |
| State | CA |
| Zip Code | 95476-9752 |
| Region | Western-Pacific |
| County | Sonoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-07-09 |
| Last Action Date | 2022-10-21 |
| Status | Registration pending |
| Mode S Code | 50054374 |
| Mode S Code Hex | A058FC |