| Tail Number / N-Number | N27K |
| Manufacturer | KLEBER JOHN P |
| Model | THORP T-18 |
| Year Built | 1987 |
| Manufacturer's Serial Number | 1067A |
| Aircraft Type | Fixed wing single engine |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | LLC |
| Owner Name | MAC AVIATION CO LLC |
| Street | 13023 BLUE CANYON CIR |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73142-6207 |
| Region | Southwestern |
| County | Oklahoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1987-08-11 |
| Certificate Issue Date | 2014-02-12 |
| Last Action Date | 2022-10-05 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 50522404 |
| Mode S Code Hex | A2A504 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N27K.
| Tail Number / N-Number | N27K |
| Manufacturer | MODIFIED BENSEN |
| Model | GYRO-GLIDER |
| Manufacturer's Serial Number | M6-1 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | STEPHENS DONALD R |
| Street | 2145 E 16TH ST |
| City | NATIONAL CITY |
| State | CA |
| Zip Code | 90001 |
| Region | Western-Pacific |
| County | Oklahoma County |
| Certificate Issue Date | 1955-04-20 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-11-23 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N27K.
| Tail Number / N-Number | N27K |
| Manufacturer | COMPER AIRCRAFT CO LTD |
| Model | SWIFT C7 |
| Manufacturer's Serial Number | GS-32/2 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | KAHN RODGER WOLFE |
| Street | 1607 BROADWAY |
| City | NEW YORK |
| State | NY |
| Zip Code | 10001 |
| Region | Eastern |
| County | Oklahoma County |
| Country | US |
| Last Status | Valid Registration |
| Cancellation Date | 1935-04-08 |