| Tail Number / N-Number | N21RB |
| Manufacturer | BRAMMER ROBERT C |
| Model | OSPREY 1 |
| Manufacturer's Serial Number | 1000001 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| 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 | CONT MOTOR |
| Engine Model | C85 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 85 hp (63 kW) |
| Type of Registrant | Individual |
| Owner Name | BRAMMER ROBERT C |
| Street | 2386 LOCH HAVEN DRIVE |
| City | ROANOKE |
| State | VA |
| Zip Code | 24019 |
| Region | Eastern |
| County | Roanoke city |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1986-12-04 |
| Certificate Issue Date | 1986-03-17 |
| Last Action Date | 2022-10-26 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50334242 |
| Mode S Code Hex | A1B8A2 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N21RB.
| Tail Number / N-Number | N21RB |
| Manufacturer | SCHEMPP-HIRTH |
| Model | K. G NIMBUS II |
| Manufacturer's Serial Number | 14 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| 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 |
| County | Roanoke city |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |