| Tail Number / N-Number | N505NM |
| Manufacturer | AEROSPATIALE |
| Model | SA341G GAZELLE |
| Year Built | 1977 |
| Manufacturer's Serial Number | 1408 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | TURBOMECA |
| Engine Model | ASTAZOU 111A |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 592 hp (442 kW) |
| Average Cruising Speed | 110 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CLASSIC ROTORS MUSEUM |
| Street | 2690 MONTECITO RD |
| City | RAMONA |
| State | CA |
| Zip Code | 92065-1611 |
| Region | Western-Pacific |
| County | San Diego County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-12-22 |
| Certificate Issue Date | 2003-06-12 |
| Last Action Date | 2022-05-10 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51446673 |
| Mode S Code Hex | A64DBB |