| Tail Number / N-Number | N155GW |
| Manufacturer | SIKORSKY |
| Model | S-55B |
| Year Built | 1955 |
| Manufacturer's Serial Number | 55883 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | WRIGHT |
| Engine Model | R-1300 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 700 hp (522 kW) |
| Average Cruising Speed | 71 miles per hour |
| Type of Registrant | LLC |
| Owner Name | SIERRA AERONAUTICS LLC |
| Street | 40 SULPHUR SPRING CHURCH RD |
| City | FRANKLIN |
| State | KY |
| Zip Code | 42134-8569 |
| Region | Central |
| County | Simpson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Multiple |
| Airworthiness Date | 1989-07-19 |
| Certificate Issue Date | 2021-10-07 |
| Last Action Date | 2021-10-07 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 50156555 |
| Mode S Code Hex | A0DD6D |