| Tail Number / N-Number | N121SF |
| Manufacturer | VANS AIRCRAFT INC |
| Model | RV-12IS |
| Year Built | 2019 |
| Manufacturer's Serial Number | 120864 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 912 IS |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | Individual |
| Owner Name | REGISTRATION PENDING |
| Street | 206 KEENE MANOR CIR |
| City | NICHOLASVILLE |
| State | KY |
| Zip Code | 40356-7911 |
| Region | Central |
| County | Jessamine County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2020-01-23 |
| Last Action Date | 2023-02-13 |
| Status | Registration pending |
| Mode S Code | 50054377 |
| Mode S Code Hex | A058FF |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N121SF.
| Tail Number / N-Number | N121SF |
| Manufacturer | AYRES CORPORATION |
| Model | S2R-T15 |
| Year Built | 1980 |
| Manufacturer's Serial Number | T15-012 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PT6A-15AG |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 680 hp (507 kW) |
| Type of Registrant | Corporation |
| Owner Name | SOUTHER FIELD AVIATION INC |
| Street | 223 AIRPORT RD |
| City | AMERICUS |
| State | GA |
| Zip Code | 31709-8127 |
| County | Jessamine County |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 2010-01-07 |
| Certificate Issue Date | 2008-08-01 |
| Last Action Date | 2008-08-01 |
| Last Status | Valid Registration |
| Cancellation Date | 2011-11-30 |
| Exported To | ARGENTINA |