Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N3780B.
| Tail Number / N-Number | N3780B |
| Manufacturer | BEECH |
| Model | C-50 |
| Manufacturer's Serial Number | CH-183 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 167 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SWEARINGEN AIRCRAFT |
| Street | P O BOX 32486 |
| City | SAN ANTONIO |
| State | TX |
| Zip Code | 78201 |
| Region | Southwestern |
| Certificate Issue Date | 1970-02-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-02-11 |
| Mode S Code | 51051735 |
| Mode S Code Hex | A453DD |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N3780B.
| Tail Number / N-Number | N3780B |
| Manufacturer | KUHR RICHARD C |
| Model | KR-2 |
| Year Built | 1980 |
| Manufacturer's Serial Number | 3568 |
| 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 | VOLKSWAGEN |
| Engine Model | CONVERSION |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 36 hp (27 kW) |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | SAN FRANCISCO AIRPORT |
| City | SAN FRANCISCO |
| State | CA |
| Zip Code | 94128 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1980-12-23 |
| Last Action Date | 2004-05-05 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2013-03-25 |
| Mode S Code | 51051735 |
| Mode S Code Hex | A453DD |