| Tail Number / N-Number | N1811B |
| Manufacturer | NORTH AMERICAN |
| Model | HARVARD 4 |
| Year Built | 1952 |
| Manufacturer's Serial Number | 20247 |
| 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 | P&W |
| Engine Model | R1340 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ONAERO INC |
| Street | 2201 MARINE ST |
| City | SANTA MONICA |
| State | CA |
| Zip Code | 90405-6041 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2013-11-26 |
| Certificate Issue Date | 2017-11-02 |
| Last Action Date | 2020-06-11 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50243340 |
| Mode S Code Hex | A146E0 |