| Tail Number / N-Number | N781RG |
| Manufacturer | GELLENBECK RONALD D |
| Model | HAWK ARROW II |
| Year Built | 2006 |
| Manufacturer's Serial Number | HA2-305-TRI-H3701S |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | HIRTH |
| Engine Model | 3701 |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | Individual |
| Owner Name | GELLENBECK RONALD D |
| Street | 5712 US HIGHWAY 52 S |
| City | LAFAYETTE |
| State | IN |
| Zip Code | 47905-9393 |
| Region | Great Lakes |
| County | Tippecanoe County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2007-01-18 |
| Certificate Issue Date | 2006-11-07 |
| Last Action Date | 2021-06-02 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 52512673 |
| Mode S Code Hex | AA95BB |