| Tail Number / N-Number | N985MS |
| Manufacturer | SMITH KENNETH R |
| Model | RV 4 |
| Year Built | 1987 |
| Manufacturer's Serial Number | 1787 |
| 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 | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | STEELE WILLIAM G |
| Street | 7268 PADDOCK WAY |
| City | WARRENTON |
| State | VA |
| Zip Code | 20186-9650 |
| Region | Eastern |
| County | Fauquier County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1989-02-24 |
| Certificate Issue Date | 2002-07-24 |
| Last Action Date | 2020-05-12 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 53337333 |
| Mode S Code Hex | ADBEDB |