| Tail Number / N-Number | N1NN |
| Manufacturer | NIELSEN NORMAN P |
| Model | STEPHENS SUPER ACRO |
| Year Built | 1981 |
| Manufacturer's Serial Number | 001 |
| 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 | LYCOMING |
| Engine Model | I0360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Corporation |
| Owner Name | WORLDS GREATEST AIRCRAFT COLLECTION INC |
| Street | 1400 BROADWAY BLVD SE |
| City | POLK CITY |
| State | FL |
| Zip Code | 33868-9109 |
| Region | Southern |
| County | Polk County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1981-07-13 |
| Certificate Issue Date | 1982-04-16 |
| Last Action Date | 2022-10-18 |
| Expiration Date | 2030-03-31 |
| Status | Valid Registration |
| Mode S Code | 50000473 |
| Mode S Code Hex | A0013B |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N1NN.
| Tail Number / N-Number | N1NN |
| Manufacturer | AEROTEK |
| Model | PITTS SPECIAL S-1S |
| Manufacturer's Serial Number | 10004 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 115 miles per hour |
| Type of Registrant | Individual |
| Owner Name | NIELSEN NORMAN P |
| Street | 11020 SW 112 AVE |
| City | MIAMI |
| State | FL |
| Zip Code | 33176 |
| Region | Southern |
| County | Polk County |
| Certificate Issue Date | 1974-01-04 |
| Last Status | Valid Registration |
| Cancellation Date | 1978-12-28 |
| Exported To | GERMANY |