Lockheed Martin X-35 | |
|---|---|
| Ország | Usa |
| Szerepet | Koncepció demonstrátor repülőgép |
| Első repülés | 2000. október 24. |
| Beépített | 2 |
A Lockheed Martin X-35 was a concept demonstrator aircraft (CDA) developed by Lockheed Martin for the Joint Strike Fighter program. The X-35 was declared winner over the competing Boeing X-32 and a developed, armed version went on to enter production in the early 21st century as the F-35 Lightning II.
| Lockheed Martin X-35B Joint Strike Fighter Walk Around | |
|---|---|
| Fotósok | John Heck, Vladimir Yakubov |
| Lokalizáció | NASM Udvar-Hazy Center, Chantilly |
| Fénykép | 90 |
| X-35 Walk Around | |
|---|---|
| Fotós | Wayne Fowler |
| Lokalizáció | Unkbow |
| Fénykép | 29 |
Lásd még:
General Characteristics and Role
The Lockheed Martin X-35B was the Short Takeoff and Vertical Landing (STOVL) demonstrator variant in the Joint Strike Fighter (JSF) program competition against the Boeing X-32. Its primary role was to prove the feasibility of a high-performance, supersonic, stealth fighter capable of operating from aircraft carriers, amphibious assault ships, and forward operating bases without conventional runways. The X-35B successfully demonstrated the necessary technological leaps, including supersonic flight, STOVL capability, and in-flight refueling. Its success, particularly its unique lift system, was key to Lockheed Martin winning the JSF contract, leading to the development of the F-35 Lightning II.
| Property | Typical Value (X-35B Demonstrator) |
|---|---|
| Szerepet | Experimental STOVL Fighter Demonstrator |
| National Origin | Egyesült Államok |
| Gyártó | Lockheed Martin, Northrop Grumman, BAE Systems |
| First Flight (STOVL) | 24 June 2001 |
| Legénység | 1 Pilot |
| Hossza | 15.47 m (50 ft 9 in) |
| Szárnyfesztávolsága | 10.05 m (33 ft 0 in) |
| Maximum Speed | Supersonic (Achieved Mach 1.05 during testing) |
| Konfiguráció | Single-engine, stealth, STOVL |
Lift System and Powerplant
- Engine: 1 x Pratt & Whitney JSF-119-PW-100 (a derivative of the F119).
- Key Innovation (STOVL): The X-35B utilized a unique three-bearing swivel duct nozzle (3BSN) for downward thrust and a Rolls-Royce LiftFan located behind the cockpit.
- LiftFan Principle: The LiftFan is driven by a shaft from the main engine, drawing cold air from above the fuselage and directing it downward, providing a massive increase in vertical lift thrust without relying solely on exhaust gas (a less hot and more efficient method).
- Thrust (Vertical): The combined vertical thrust from the main nozzle and the LiftFan exceeded 40,000 lbf (180 kN).
- Achievement: The X-35B famously completed the “Three-in-One Flight” by taking off in a short distance, going supersonic, and landing vertically in a single flight, a first for any aircraft.
Program Outcome and Legacy
- Competition Victory: The X-35 design was declared the winner of the JSF competition in 2001, primarily due to the simpler, more reliable, and lower-risk STOVL system compared to the Boeing X-32.
- F-35 Lineage: The X-35B directly led to the development of the F-35B Lightning II, the production STOVL variant currently used by the U.S. Marine Corps and Royal Air Force/Royal Navy.
- Influence: The X-35 program successfully combined stealth, supersonic performance, and STOVL capability in a single platform, demonstrating a significant leap in fighter technology.
- Preservation: The X-35B demonstrator is preserved and displayed at the National Air and Space Museum’s Steven F. Udvar-Hazy Center in Chantilly, Virginia.
Megtekintették : 1891
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