| Tail Number / N-Number | N85TG |
| Manufacturer | WATKINS THOMAS G III |
| Model | GLASAIR III |
| Year Built | 1992 |
| Manufacturer's Serial Number | 3226 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | AEIO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | LLC |
| Owner Name | WILLIAMS FIELD LLC |
| Street | 2705 50TH AVE NW |
| City | GIG HARBOR |
| State | WA |
| Zip Code | 98335-7607 |
| Region | Northwest Mountain |
| County | Pierce County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1992-08-29 |
| Certificate Issue Date | 2013-02-12 |
| Last Action Date | 2021-09-14 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 52723257 |
| Mode S Code Hex | ABA6AF |