| Tail Number / N-Number | N8521 |
| Type of Reservation | Reserved - no fee |
| Reserving Party Name | US DEPARTMENT OF ENERGY C/O OAK RIDGE NATIONAL LA |
| Street | 1 BETHEL VALLEY RD |
| City | OAK RIDGE |
| State | TN |
| Zip Code | 37830-8050 |
| Date Reserved | 2022-06-01 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N8521.
| Tail Number / N-Number | N8521 |
| Manufacturer | BOHNER HANS F |
| Model | NUWACO 10-TAPERWING |
| Year Built | 1996 |
| Manufacturer's Serial Number | 39 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | JACOBS |
| Engine Model | R755A SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | Corporation |
| Owner Name | SHADETREE AVIATION INC |
| Street | 4331 GONI RD |
| City | CARSON CITY |
| State | NV |
| Zip Code | 89706-0623 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1996-07-25 |
| Certificate Issue Date | 1999-08-23 |
| Last Action Date | 2015-01-08 |
| Last Status | Valid Registration |
| Cancellation Date | 2015-02-18 |
| Exported To | FRANCE |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N8521.
| Tail Number / N-Number | N8521 |
| Manufacturer | SCHLEICHER |
| Model | KA 6 CR |
| Manufacturer's Serial Number | 6160 |
| Aircraft Type | Glider |
| 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 | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BOWEN RICHARD G |
| Street | 852 NW ALBEMARLE TERRACE |
| City | PORTLAND |
| State | OR |
| Zip Code | 97210 |
| Region | Northwest Mountain |
| Certificate Issue Date | 1968-08-26 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-08-21 |