| Tail Number / N-Number | N99181 |
| Manufacturer | ERCOUPE |
| Model | 415-C |
| Year Built | 1946 |
| Manufacturer's Serial Number | 1804 |
| 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 | CONT MOTOR |
| Engine Model | C85 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 85 hp (63 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WILHELM KENNETH H |
| Street | 8285 NORTHERN LIGHTS DR |
| City | HELENA |
| State | MT |
| Zip Code | 59602-8389 |
| Region | Northwest Mountain |
| County | Lewis and Clark County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-09-22 |
| Certificate Issue Date | 2001-07-25 |
| Last Action Date | 2020-08-01 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 53354744 |
| Mode S Code Hex | ADD9E4 |