| Tail Number / N-Number | N545SM |
| Manufacturer | MARSH STEPHEN |
| Model | RV-4 |
| Year Built | 1999 |
| Manufacturer's Serial Number | 545 |
| 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 | LYCOMING |
| Engine Model | IO-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Kit Manufacturer | VANS AIRCRAFT INC |
| Kit Model | RV-4 |
| Type of Registrant | Individual |
| Owner Name | MARSH STEPHEN G |
| Street | 6487 PURPLE HILLS DR |
| City | SAN JOSE |
| State | CA |
| Zip Code | 95119-1552 |
| Region | Western-Pacific |
| County | Santa Clara County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2000-03-08 |
| Certificate Issue Date | 1999-06-30 |
| Last Action Date | 2020-04-03 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51566033 |
| Mode S Code Hex | A6EC1B |