Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4891W.
| Tail Number / N-Number | N4891W |
| Manufacturer | THUNDER BALLOONS LIMITED |
| Model | AX7-77 |
| Manufacturer's Serial Number | 241 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 22 miles per hour |
| Last Action Date | 1979-12-15 |
| Last Status | N-Number assigned, has not been registered and is pending cancellation |
| Cancellation Date | 2011-03-03 |
| Mode S Code | 51406230 |
| Mode S Code Hex | A60C98 |