| Tail Number / N-Number | N721JC |
| Manufacturer | CLARK JAMES R |
| Model | STEEN-CLARK SKYBOLT |
| Manufacturer's Serial Number | 0321 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | CLARK JAMES ROBERT |
| Street | 154 RED BARON DR |
| City | RHOME |
| State | TX |
| Zip Code | 76078-2129 |
| Region | Southwestern |
| County | Wise County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 1986-05-06 |
| Last Action Date | 2023-01-05 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 52324016 |
| Mode S Code Hex | A9A80E |