| Tail Number / N-Number | N6521 |
| Manufacturer | BELL |
| Model | 47D |
| Year Built | 1955 |
| Manufacturer's Serial Number | 55-4113 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | 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 |
| Average Cruising Speed | 78 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HENRY MARK A |
| Street | 12900 FM 3436 RD |
| City | DICKINSON |
| State | TX |
| Zip Code | 77539-2565 |
| Region | Southwestern |
| County | Galveston County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 1997-08-06 |
| Last Action Date | 2020-08-18 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 52113243 |
| Mode S Code Hex | A896A3 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6521.
| Tail Number / N-Number | N6521 |
| Manufacturer | NORTH AMERICAN |
| Model | T-6G |
| Manufacturer's Serial Number | 5114431 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | Government |
| Owner Name | US AIR FORCE |
| County | Galveston County |
| Certificate Issue Date | 1968-12-09 |
| Last Status | Valid Registration |
| Cancellation Date | 1969-06-10 |