| Tail Number / N-Number | N521TR |
| Manufacturer | ROBERTSON G F/ROBERTSON L E |
| Model | 173 ELITE-FG |
| Manufacturer's Serial Number | DMO379 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | I0-360-B1E |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Kit Manufacturer | VELOCITY INC |
| Kit Model | 173 ELITE FG |
| Type of Registrant | Individual |
| Owner Name | RIZZO ANTHONY M |
| Street | 403 PILOT PL |
| City | WINTER HAVEN |
| State | FL |
| Zip Code | 33881-5520 |
| Region | Southern |
| County | Polk County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1999-10-19 |
| Certificate Issue Date | 2016-11-08 |
| Last Action Date | 2022-06-16 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 51507136 |
| Mode S Code Hex | A68E5E |