| Tail Number / N-Number | N20821 |
| Manufacturer | PIPER |
| Model | PA-18-135 |
| Year Built | 1954 |
| Manufacturer's Serial Number | 183547 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-290 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 140 hp (104 kW) |
| Average Cruising Speed | 97 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | DANIELSON ROBERT DBA CONVENTIONAL AIR |
| Other Names |
|
| Street | 508 GREENBRIAR TER |
| City | DECATUR |
| State | MI |
| Zip Code | 49045-1324 |
| Region | Great Lakes |
| County | Van Buren County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2002-10-15 |
| Certificate Issue Date | 2014-04-18 |
| Last Action Date | 2022-11-15 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 50331163 |
| Mode S Code Hex | A1B273 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N20821.
| Tail Number / N-Number | N20821 |
| Manufacturer | PIPER |
| Model | J-3 |
| Manufacturer's Serial Number | 2121 |
| Aircraft Type | Fixed wing single engine |
| 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 | 1 engine |
| Average Cruising Speed | 56 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HOLT LE ROY R |
| County | Van Buren County |
| Certificate Issue Date | 1945-06-16 |
| Last Status | Valid Registration |
| Cancellation Date | 1945-12-03 |