Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N451ST.
| Tail Number / N-Number | N451ST |
| Manufacturer | LEARJET INC |
| Model | 45 |
| Year Built | 2002 |
| Manufacturer's Serial Number | 200 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | HONEYWELL |
| Engine Model | TFE-731-SER |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 4,000 pounds-force (17.8 kN) |
| Total Thrust | 8,000 pounds-force (35.6 kN) |
| Type of Registrant | Corporation |
| Owner Name | HAINES AIRCORP INC |
| Street | 3500 S DUPONT HWY |
| City | DOVER |
| State | DE |
| Zip Code | 19901-6041 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2002-04-26 |
| Certificate Issue Date | 2014-10-29 |
| Last Action Date | 2014-10-29 |
| Last Status | Valid Registration |
| Cancellation Date | 2015-02-23 |
| Exported To | COLOMBIA |
| Mode S Code | 51273565 |
| Mode S Code Hex | A57775 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N451ST.
| Tail Number / N-Number | N451ST |
| Manufacturer | S TEC CORPORATION |
| Model | STM 4 |
| Manufacturer's Serial Number | 4001 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | EXPERIMENTAL WINGS INC |
| Street | 503 ROBINSON CT |
| City | ALEXANDRIA |
| State | VA |
| Zip Code | 22302 |
| Country | US |
| Certificate Issue Date | 1991-07-02 |
| Last Action Date | 1992-04-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1994-07-13 |
| Mode S Code | 51273565 |
| Mode S Code Hex | A57775 |