| Tail Number / N-Number | N663G |
| Manufacturer | GRUMMAN |
| Model | G-44A |
| Year Built | 1945 |
| Manufacturer's Serial Number | 1429 |
| Aircraft Type | Fixed wing multi engine |
| Category | Amphibian |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | GO-480 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 295 hp (220 kW) |
| Total Horsepower | 590 hp (440 kW) |
| Average Cruising Speed | 131 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | GREATEST GENERATION NAVAL MUSEUM |
| Street | 755 AVIATION WAY |
| City | COLORADO SPRINGS |
| State | CO |
| Zip Code | 80916-2740 |
| Region | Northwest Mountain |
| County | El Paso County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-01-04 |
| Certificate Issue Date | 2013-01-24 |
| Last Action Date | 2021-08-17 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 52137764 |
| Mode S Code Hex | A8BFF4 |