| Tail Number / N-Number | N520BR |
| Manufacturer | PAUL S STUMPF |
| Model | OBRIEN 35 |
| Year Built | 2015 |
| Manufacturer's Serial Number | 2015-35-1 |
| Aircraft Type | Balloon |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | OBRIEN JAMES A |
| Street | 832 RAIL FENCE RD |
| City | ORANGE |
| State | CT |
| Zip Code | 06477-1032 |
| Region | New England |
| County | New Haven County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2015-06-15 |
| Certificate Issue Date | 2015-07-31 |
| Last Action Date | 2021-02-10 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 51504427 |
| Mode S Code Hex | A68917 |