F-35A "AA-1" lands after a flight from Edwards
AFB, CA during its first visit from the Lockheed Fort
Worth plant 10/23/08
Photo: Dan Stijovich
10/23/2008 - EDWARDS AIR FORCE BASE, CA -- The first pre production
EMD F-35A Lightning II fighter "AA-1" has finished
all initial testing at Edwards Air Force Base, CA, demonstrating
that the aircraft, the support crews, and contractor and military
service personnel are ready for the dramatically expanded flight
testing on the program's horizon.
"This initial round of testing at Edwards is just the
beginning," said Doug Pearson, Lockheed Martin vice president
of the F-35 Integrated Test Force. "The exceptional performance
of the aircraft and those supporting it shows that the team
is ready for the fast-paced flight test activities upcoming
at Edwards and [Naval Air Station] Patuxent River, Md."
By the end of 2009, all 19 F-35 test aircraft will be complete
and flight test activities will intensify, leading to Initial
Operational Test & Evaluation in the 2013-2014 time frame.
During the three-week deployment at Edwards, most of the F-35's
activity centered on a set of crucial tests that validated the
aircraft's ability to shut down and restart its engine in flight.
During the tests - conducted to ensure that the aircraft can
regain power and be flown safely in the event of an unanticipated
engine flameout - the Pratt & Whitney F135 turbofan repeatedly
restarted on command.
"Our goal was to collect in-flight data during 12 specific
test cases over Edwards, and we did exactly that," Pearson
said. "The initial data review and pilot-reported results
are very favorable and meet or exceed our expectations."
F-35A "AA-1" flies with two 412th TW F-16s during
a test sortie at Edwards AFB, CA during its first visit
from the Lockheed Fort Worth plant 10/23/08
Photo: USAF / Julius Delos Reyes
With all Edwards testing successfully completed, F-35 Test
Pilot Jeff Knowles will fly the aircraft back to Lockheed Martin's
Fort Worth, Texas, plant this week. "In addition to confirming
that the engine spools up and restarts very quickly after being
shut off in flight, we found that the airplane itself showed
high reliability and was always ready for its next mission,"
Knowles said. "That kind of performance in an early development
plane bodes well for the aircraft we deliver to the fleet."
The deployment began on Oct. 1 when Knowles flew the Lightning
II nonstop from Fort Worth to Edwards, landing "code one,"
or without any aircraft discrepancies.
"Our modeling and simulation indicated a robust propulsion
system design. With the completion of testing at Edwards I am
even more confident we have an excellent design that demonstrates
appropriate performance and margin to accommodate unplanned
conditions if encountered," Pearson said, adding that support
from the U.S. Air Force and the F-35 logistics team were outstanding
and "enabled us to meet every scheduled event."
The F-35 involved in the testing is a conventional takeoff
and landing variant that has completed 63 flights.
Source: Lockheed Martin Press Release