| Tail Number / N-Number | N4DH |
| Manufacturer | BEECH |
| Model | D18S |
| Year Built | 1946 |
| Manufacturer's Serial Number | A-260 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | TIGO-541SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 400 hp (298 kW) |
| Total Horsepower | 800 hp (597 kW) |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | GLENN L MARTIN MARYLAND AVIATION MUSEUM |
| Street | 701 WILSON POINT RD |
| City | BALTIMORE |
| State | MD |
| Zip Code | 21220-4238 |
| Region | Eastern |
| County | Baltimore city |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-01-05 |
| Certificate Issue Date | 2014-03-13 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-03-31 |
| Status | Valid Registration |
| Mode S Code | 51124102 |
| Mode S Code Hex | A4A842 |