| Tail Number / N-Number | N11RS |
| Manufacturer | STEPHENS |
| Model | MARQUART MA-5 |
| Year Built | 1973 |
| Manufacturer's Serial Number | 26 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| 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 | LYCOMING |
| Engine Model | IO-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Average Cruising Speed | 85 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 139 SKI VIEW DR |
| City | WINLOCK |
| State | WA |
| Zip Code | 98596-9375 |
| Region | Northwest Mountain |
| County | Lewis County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1979-07-20 |
| Last Action Date | 2022-12-23 |
| Status | Sale reported |
| Mode S Code | 50025542 |
| Mode S Code Hex | A02B62 |