| Tail Number / N-Number | N441RP |
| Manufacturer | KEENAN ROBERT A |
| Model | SONERAI II L |
| Year Built | 1985 |
| Manufacturer's Serial Number | 85K1160L |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | VOLKSWAGEN |
| Engine Model | CONVERSION |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 36 hp (27 kW) |
| Type of Registrant | Co-Ownership |
| Owner Name | GAST WILLIAM A |
| Other Names |
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| Street | 901 HILL AVE |
| City | SPIRIT LAKE |
| State | IA |
| Zip Code | 51360-1441 |
| Region | Central |
| County | Dickinson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2010-04-29 |
| Certificate Issue Date | 2012-01-27 |
| Last Action Date | 2020-08-11 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 51247731 |
| Mode S Code Hex | A54FD9 |