Description: The Lockheed Martin X-35 was chosen over the competing Boeing X-32 primarily because of Lockheed lift-fan STOVL design, which proved superior to the Boeing vectored-thrust approach. The lift fan, which is powered by the aircraft engine via a clutched driveshaft, was technically challenging but DoD concluded that Lockheed has the technology in hand. The lift fan has significant excess power which could be critical given the weight gain that all... ( +expand to view full text )
Description: The Lockheed Martin X-35 was chosen over the competing Boeing X-32 primarily because of Lockheed lift-fan STOVL design, which proved superior to the Boeing vectored-thrust approach. The lift fan, which is powered by the aircraft engine via a clutched driveshaft, was technically challenging but DoD concluded that Lockheed has the technology in hand. The lift fan has significant excess power which could be critical given the weight gain that all fighter aircraft experience.
Lockheed Martin developed four versions of the Joint Strike Fighter to fulfill the needs of the Navy, Marine Corps, Army, Air Force and the United Kingdom Royal Air Force and Navy. All versions have the same fuselage and internal weapons bay, common outer mold lines with similar structural geometries, identical wing sweeps, and comparable tail shapes. The weapons are stored in two parallel bays located aft of the main landing gear. The canopy, radar, ejection system, subsystems, and avionics are all common among all different version as is the core engine which is based on the F119 by Pratt & Whitney.
Additional systems on the F-35 include:
Northrup Grumman advanced electronically scanned array (AESA) multi-function radar
Snader/Litton Amecon electronic countermeasures equipment
Lockheed Martin electro-optical targeting system
Northrup Grumman distributed aperture infrared sensor (DAIRS) thermal imaging system
Vision Systems International advanced helmet-mounted display
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