STOVL Jet Is Fifth Lockheed Martin F-35 To Enter Flight Testing

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STOVL Jet Is Fifth Lockheed Martin F-35 To Enter Flight Testing
UNITED STATES - 2 FEBRUARY 2010

FORT WORTH, Texas -- A Lockheed Martin [NYSE: LMT] F-35B Lightning II short takeoff/vertical landing (STOVL) stealth fighter today became the fifth F-35 to begin flight operations.

The jet, known as BF-3, departed the runway near Lockheed Martin’s Fort Worth plant at 4:02 p.m. CST for its first flight. During the one-hour sortie, F-35 Chief Test Pilot Jon Beesley tested the aircraft’s handling qualities, engine functionality, landing gear operation and basic subsystem performance.

BF-3 joins two other F-35Bs and one F-35A conventional takeoff and landing (CTOL) aircraft currently undergoing active flight test. The first CTOL F-35, AA-1, is now preparing for live-fire testing. The F-35 program continues to accelerate the time from flight line arrival to first flight.

BF-3 was built and instrumented to conduct flight sciences test work and will be used primarily to evaluate vehicle systems and expand the aircraft’s aerodynamic and structural-loads envelope. It will deploy later this year to Naval Air Station Patuxent River, Md., where it will carry and release most of the weapons the F-35B will employ in combat.

BF-3 and all other Lightning II aircraft will be supported by the F-35 Autonomic Logistics Information System and monitored by the F-35 Autonomic Logistics Global Sustainment Operations Center in Fort Worth. F-35 sustainment is based upon the principles of Performance-Based Logistics, involving extensive partnering agreements between government and industry. The F-35 team has developed an advanced sustainment system capability with designed-in sustainability that will reduce overall life-cycle costs and ensure mission readiness.

The F-35 Lightning II is a 5th generation fighter, combining advanced stealth with fighter speed and agility, fully fused sensor information, network-enabled operations, advanced sustainment, and lower operational and support costs. Lockheed Martin is developing the F-35 with its principal industrial partners, Northrop Grumman and BAE Systems. Two separate, interchangeable F-35 engines are under development: the Pratt & Whitney F135 and the GE Rolls-Royce Fighter Engine Team F136.

The third Lockheed Martin F-35B STOVL jet to enter flight testing makes its final approach to Naval Air Station Fort Worth following a one-hour first flight on Feb. 2, 2010. F-35 Chief Test Pilot Jon Beesley said afterwards, "The flawless performance of this aircraft on this first flight is a great testimony to the BF-3 team."






Source: Lockheed Martin Corporation

 

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Wyle Aircrew Performs First In-flight Refueling of Joint Strike Fighter STOVL Variant - F-35B
UNITED STATES - 4 FEBRUARY 2010

EL SEGUNDO, Calif. | Wyle air crew personnel have become the first aviators to aerially refuel the F-35B short takeoff/vertical landing variant (STOVL) of the Joint Strike Fighter (JSF) using a probe-and-drogue refueling system during a recent mission at Lockheed Martin's Ft. Worth, Tex. manufacturing facility.

These first aerial refueling missions were performed by Wyle aircrew flying a Navy KC-130 tanker aircraft assigned to the U.S. Navy's Air Test and Evaluation Squadron Twenty (VX-20) at Naval Air Station Patuxent River, Md. The refueled aircraft, designated the F-35BF-2, represents one of three variants of this fifth generation strike fighter, developed for the U.S. military and eight allied nations.

Two of the first five F-35B aircraft slated for flight testing arrived at Patuxent River in the last quarter of 2009 and Wyle's KC-130 aircrew team will continue to assist with refueling missions as testing progresses.

Wyle has the largest independent flight test team in the world with more than 70 members, including 53 pilots, flying 20-plus types of aircraft from supersonic manned jets to helicopters to unmanned flight systems. Among the aircraft flown by Wyle pilots are the F/A-18, V-22, E-2D, P-3, KC-130 and AH-64D.

For the refueling mission, Wyle's crew included Steve Angay, Craig Homer, Josh Izenour, Jeff Kosich, Chris Loftis, and Bill Smith who support VX-20.

The probe-and-drogue system is used by the U.S. Navy, Marine Corps and many NATO nations to refuel aircraft in flight. The system uses a flexible hose that terminates in a cone shaped basket extending from an aircraft carrying fuel. The cone shaped basket, or drogue, connects to the probe of an aircraft needing fuel. The fuel is then transferred through the hose from the tanker to the receiving aircraft.

An alternate system, called a flying boom, is used by the U.S. Air Force. This system inserts a rigid flying boom into a receptacle on a receiving aircraft. This is the system employed by the F-35A conventional takeoff and landing (CTOL) variant of the aircraft, which was the first variant to be aerially refueled.

In preparing to go to Fort Worth, the Wyle KC-130 aircrew worked with the JSF team to develop test plans, determine aircraft configurations representative of the U.S. Navy and Marine Corps fleet, and make modifications to the tanker.

"A lot of the initial planning was done by our crew," said Izenour, Wyle's KC-130 mission commander. "These guys did an excellent job of mission planning and interfacing with the JSF team which made the actual mission itself -- the flying part -- go seamlessly. The amount of planning that everyone did on the front side made the execution very, very easy."

The team planned for variables inherent in the initial test evolutions, where fuel was uploaded into the aircraft at 10,000, 15,000 and 20,000 feet, at speeds ranging from 200 to 250 knots.

"Since it was the first refuel, we didn't know exactly how the aircraft [JSF] might behave, so we were limited as to how much pressure we could provide to the fuel lines," said Homer. "From an engineering point of view, we had to keep very close track of the [refueling] panel during the tests."