Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4571.
| Tail Number / N-Number | N4571 |
| Manufacturer | BENSEN GYROCOPER |
| Model | B-8M |
| Manufacturer's Serial Number | 1 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | TANNER BOBBIE J |
| Street | 2016 CUMBERLAND ST |
| City | WACO |
| State | TX |
| Zip Code | 76707 |
| Region | Southwestern |
| Certificate Issue Date | 1968-08-16 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-07-15 |
| Mode S Code | 51307230 |
| Mode S Code Hex | A58E98 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4571.
| Tail Number / N-Number | N4571 |
| Manufacturer | GRUMMAN ACFT ENG COR-SCHWEIZER |
| Model | G-164A |
| Year Built | 1973 |
| Manufacturer's Serial Number | 1060 |
| 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) |
| Engine Manufacturer | P&W |
| Engine Model | R1340 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 81 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | XXX |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73169 |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1973-03-23 |
| Last Action Date | 2011-06-03 |
| Last Status | Sale reported |
| Cancellation Date | 2011-06-21 |
| Exported To | BELIZE |
| Mode S Code | 51307230 |
| Mode S Code Hex | A58E98 |