| Tail Number / N-Number | N121RK |
| Manufacturer | KOLBO ROGER L |
| Model | KITFOX |
| Manufacturer's Serial Number | 12 |
| 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 | BOMBARDIER |
| Engine Model | ROTAX (ALL) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | KEEP RANDIE C |
| Street | 320 SACAJAWEA PEAK DR |
| City | BOZEMAN |
| State | MT |
| Zip Code | 59718-9393 |
| Region | Northwest Mountain |
| County | Gallatin County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1988-05-24 |
| Certificate Issue Date | 2021-04-19 |
| Last Action Date | 2021-04-19 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 50054352 |
| Mode S Code Hex | A058EA |