Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N51SF.
| Tail Number / N-Number | N51SF |
| Manufacturer | HAWKER |
| Model | SEA FURY TMK 20 |
| Year Built | 1948 |
| Manufacturer's Serial Number | ES3613 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | WRIGHT |
| Engine Model | R3350-26WD |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 2,700 hp (2,014 kW) |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CAVANAUGH FLIGHT MUSEUM |
| Street | 4572 CLAIRE CHENNAULT ST |
| City | ADDISON |
| State | TX |
| Zip Code | 75001-5321 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2006-11-09 |
| Certificate Issue Date | 2009-01-29 |
| Last Action Date | 2009-01-29 |
| Last Status | First Notice for Re-Registration/Renewal |
| Cancellation Date | 2013-04-25 |
| Exported To | GERMANY |
| Mode S Code | 51460254 |
| Mode S Code Hex | A660AC |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N51SF.
| Tail Number / N-Number | N51SF |
| Manufacturer | DASSAULT/SUD |
| Model | FALCON 20C |
| Manufacturer's Serial Number | 012 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 14 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | BECHTEL POWER CORP |
| Street | 50 BEALE STREET BOX 3965 |
| City | SAN FRANCISCO |
| State | CA |
| Zip Code | 94119 |
| Region | Western-Pacific |
| Certificate Issue Date | 1984-02-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1985-03-01 |
| Exported To | NORWAY |
| Mode S Code | 51460254 |
| Mode S Code Hex | A660AC |