Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N37511.
| Tail Number / N-Number | N37511 |
| Manufacturer | DOUGLAS |
| Model | DC-6 |
| Manufacturer's Serial Number | 43000 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 96 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Average Cruising Speed | 225 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PURDUE UNIVERSITY |
| Certificate Issue Date | 1965-07-21 |
| Last Status | Valid Registration |
| Cancellation Date | 1966-12-28 |
| Mode S Code | 51044363 |
| Mode S Code Hex | A448F3 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N37511.
| Tail Number / N-Number | N37511 |
| Manufacturer | SWITZER |
| Model | BENSEN B-8KSB |
| Year Built | 1975 |
| Manufacturer's Serial Number | SB001 |
| Aircraft Type | Rotorcraft |
| 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 | MCCULLOCH |
| Engine Model | 4318A&E/0-100 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 72 hp (54 kW) |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 8515 SW 160TH STREET |
| City | MIAMI |
| State | FL |
| Zip Code | 33193 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1975-07-24 |
| Last Action Date | 1980-11-15 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2012-09-20 |
| Mode S Code | 51044363 |
| Mode S Code Hex | A448F3 |