Prime Contractor Lockheed Martin is gearing up for a flight test of the F-35B demonstrator aircraft, known as BF-1, possibly before 6 June, according to Lockheed Martin spokesman John Smith.
Once the BF-1 has completed its inaugural flight, the US Department of Defense is expected to release funding for the purchase of six F-35B aircraft for the US Marine Corps.
一旦BF-1完成所有测试，美国国防部计划发放资金为美国海军陆战队购买六架F-35B飞机。
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This spiral release provides the capabilities to perform initial manufacturing system checkouts on F-35 BF-4, the first full avionics aircraft, scheduled to fly in the first quarter of 2009.