| Tail Number / N-Number | N615SB |
| Manufacturer | ROCKWELL INTERNATIONAL |
| Model | 690B |
| Year Built | 1978 |
| Manufacturer's Serial Number | 11457 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AIRESEARCH |
| Engine Model | TPE331-5&6SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 776 hp (579 kW) |
| Total Horsepower | 1,552 hp (1,158 kW) |
| Average Cruising Speed | 192 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | DENVER ROCK ISLAND RAILROAD |
| Street | 3400 E 56TH AVE |
| City | COMMERCE CITY |
| State | CO |
| Zip Code | 80022-3620 |
| Region | Northwest Mountain |
| County | Adams County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-01-28 |
| Certificate Issue Date | 2020-04-21 |
| Last Action Date | 2022-11-14 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 52001343 |
| Mode S Code Hex | A802E3 |