| Tail Number / N-Number | N111WK |
| Manufacturer | BEECH |
| Model | B-60 |
| Year Built | 1977 |
| Manufacturer's Serial Number | P-439 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | TI0-541 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 310 hp (231 kW) |
| Total Horsepower | 620 hp (463 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | LLC |
| Owner Name | MAD-CON LLC |
| Street | 4913 MUSSETTER RD |
| City | IJAMSVILLE |
| State | MD |
| Zip Code | 21754-9622 |
| Region | Eastern |
| County | Frederick County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-08-16 |
| Certificate Issue Date | 2007-04-17 |
| Last Action Date | 2023-01-03 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50030750 |
| Mode S Code Hex | A031E8 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N111WK.
| Tail Number / N-Number | N111WK |
| Manufacturer | KLEINBAUER |
| Model | WAKE ISLAND SCORPION |
| Manufacturer's Serial Number | WJK-1-74 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KLEINBAUER WILLIAM J |
| Other Names |
|
| Street | 5539 WEST 142 PLACE |
| City | HAWTHORNE |
| State | CA |
| Zip Code | 90250 |
| County | Frederick County |
| Country | US |
| Certificate Issue Date | 1974-05-25 |
| Last Action Date | 1983-06-25 |
| Last Status | Administratively canceled |
| Cancellation Date | 1983-06-25 |