| Tail Number / N-Number | N21HP |
| Manufacturer | MITSUBISHI |
| Model | MU-2B-26A |
| Year Built | 1977 |
| Manufacturer's Serial Number | 357SA |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 9 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) |
| Type of Registrant | LLC |
| Owner Name | EXCALIBUR ENTERPRISES LLC |
| Street | 7633 GREAT DOVER ST |
| City | GAINESVILLE |
| State | VA |
| Zip Code | 20155-4894 |
| Region | Eastern |
| County | Prince William County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-05-10 |
| Certificate Issue Date | 2020-06-04 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-06-30 |
| Status | Valid Registration |
| Mode S Code | 50333746 |
| Mode S Code Hex | A1B7E6 |