Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N6121Q.
| Tail Number / N-Number | N6121Q |
| Manufacturer | JOHNSON |
| Model | CHALLENGER II CH-2 |
| Year Built | 1998 |
| Manufacturer's Serial Number | CH2-0996-1520 |
| 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 | BOMBARDIER |
| Engine Model | ROTAX (ALL) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | ULTRAFUN AIRSPORTS LLC |
| Street | 83388 553RD AVE |
| City | NORFOLK |
| State | NE |
| Zip Code | 68701-1268 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1998-03-17 |
| Certificate Issue Date | 2004-11-29 |
| Last Action Date | 2007-11-20 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2015-05-15 |
| Mode S Code | 51774266 |
| Mode S Code Hex | A7F8B6 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N6121Q.
| Tail Number / N-Number | N6121Q |
| Manufacturer | MAULE |
| Model | MX-7-180 |
| Manufacturer's Serial Number | 11047C |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1988-08-09 |
| Mode S Code | 51774266 |
| Mode S Code Hex | A7F8B6 |