The Lockheed Martin X-35 concept for the Marine and Royal Navy variant of the aircraft uses a shaft-driven lift-fan system to achieve Short-Takeoff/Vertical Landing (STOVL) capability. The aircraft will be configured with a Rolls-Royce/Allison shaft-driven lift-fan, roll ducts and a three-bearing swivel main engine nozzle, all coupled to a modified Pratt & Whitney F119 engine that powers all three variants. | |
The Boeing X-32 JSF short takeoff and vertical landing (STOVL) variant for the U.S. Marine Corps and U.K. Royal Navy employs a direct lift system for short takeoffs and vertical landings with uncompromised up-and-away performance. |
Survivability: radio frequency/infrared signature reduction and on-board countermeasures to survive in the future battlefield--leveraging off F-22 air superiority mission supportJSF’s integrated avionics and stealth are intended to allow it to penetrate surface-to-air missile defenses to destroy targets, when enabled by the F-22’s air dominance. The JSF is designed to complement a force structure that includes other stealthy and non-stealthy fighters, bombers, and reconnaissance / surveillance assets. JSF requirements definition efforts are based on the principles of Cost as an Independent Variable: Early interaction between the warfighter and developer ensures cost / performance trades are made early, when they can most influence weapon system cost. The Joint Requirements Oversight Council has endorsed this approach.
Lethality: integration of on- and off-board sensors to enhance delivery of current and future precision weapons
Supportability: reduced logistics footprint and increased sortie generation rate to provide more combat power earlier in theater
Affordability: focus on reducing cost of developing, procuring and owning JSF to provide adequate force structure
Specifications | |||
Function | strike fighter | ||
Contractor | two competing teams: Lockheed-Martin Boeing | ||
Service | U.S. Air Force | U.S. Marine Corps U.K. Royal Navy | U.S. Navy |
Variants | Conventional Takeoff and Landing (CTOL) | Short Takeoff and Vertical Landing (STOVL) | Carrier-based (CV) |
Unit Cost FY94$ | $28M | $35M | $38M |
Propulsion | Baseline: Pratt & Whitney F119-PW-100 derivative from F-22 Raptor Alternate Engine: General Electric F120 core | ||
Thrust | |||
Empty Weight | ~22,500 lbs | ~24,000 lbs | |
Internal Fuel | 15,000 lbs | 16,000 lbs | |
Payload | 13,000 lbs | 17,000 lbs | |
Maximum Takeoff Weight | ~50,000 lbs | ||
Length | 45 feet | ||
Wingspan | 36 feet | 30 feet | |
Height | |||
Ceiling | |||
Speed | supersonic | ||
Combat Radius | over 600 nautical miles | ||
Crew | one | ||
Armament | First flight | 1999 | |
Date Deployed | 2008 | ||
Inventory Objectives | U.S. Air Force 2,036 aircraft | U.S. Marine Corps 642 aircraft U.K. Royal Navy 60 aircraft |
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