| Tail Number / N-Number | N63MX |
| Manufacturer | AERO VODOCHODY |
| Model | L39C |
| Year Built | 1984 |
| Manufacturer's Serial Number | 432843 |
| 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) |
| Engine Manufacturer | IVCHENKO |
| Engine Model | AI-25TL |
| Engine Type | Turbo-fan |
| Number of Engines | 1 engine |
| Thrust | 3,792 pounds-force (16.9 kN) |
| Type of Registrant | LLC |
| Owner Name | HAMMER JET LLC |
| Street | 7 MERCY ST |
| City | DANBURY |
| State | CT |
| Zip Code | 06810-5175 |
| Region | New England |
| County | Fairfield County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2008-03-28 |
| Certificate Issue Date | 2007-08-21 |
| Last Action Date | 2021-02-16 |
| Expiration Date | 2028-03-31 |
| Status | Valid Registration |
| Mode S Code | 52036214 |
| Mode S Code Hex | A83C8C |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N63MX.
| Tail Number / N-Number | N63MX |
| Manufacturer | WSK-PZL-MIELEC |
| Model | PZL-M-18 |
| Manufacturer's Serial Number | 1Z01603 |
| 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 |
| County | Fairfield County |
| Last Status | N-Number Assigned – but has not yet been registered |