On May 3, 2007, during the 19th test flight of the prototype of the F-35A Joint Strike Fighter (JSF), a serious electrical malfunction occurred in the control of the plane. After an emergency landing the malfunction could be identified as a crucial problem, and it became clear that redesign of critical electronic components was necessary. Producer Lockheed Martin and program officials first announced there was a minor problem, and later on they avoided any further publicity about the problems. F-35 JSF Hit by Serious Design Problems The F-35 Lightning II strike fighter has previously undisclosed problems with its handling, avionics, afterburner and helmet-mounted display, according to a report by the Pentagon's Director of Operational Test and Evaluation. Report Reveals Undisclosed F-35 Problems - Defense News The generator failure was caused by a design artifact that was unique to the new versions of the planes and investigations continue into the cause of the incident, according to Reuters. This means the three newest F-35 test jets will remain grounded until the issue is completely resolv http://defensetech.org/2011/03/16/design-flaw-may-have-caused-f-35-generator-failure/ The United States intends to buy a total of 2,443 aircraft for an estimated US$323 billion, making it the most expensive defense program ever. The United States Air Force (USAF) budget data in 2010, along with other sources, projects the F-35 to have a flyaway cost from US$89 million to US$200 million over the planned production of F-35s. Cost estimates have risen to $382 billion for 2,443 aircraft, at an average of $156 million each. The rising program cost estimates have cast doubt on the actual number to be produced for the U.S. In January 2011, the F-35B variant was placed on "probation" for two years because of development issues. In February 2011, the Pentagon put a price of $207.6 million for each of the 32 aircraft to be acquired in FY2012, rising to $304.15 Lockheed Martin F-35 Lightning II - Wikipedia, the free encyclopedia This aircraft is a prime example of DoD's allowing a contractor use a substandard product , in this case the F-35 as a "cash cow" for over 16 years now and has yet to deliver a single aricraft to the Navy or USMC or any number of the nations involved in the program. Further, this aircrafts performance is so poor when ranked with the aircraft it's meant to replace or go up agianst by the time it comes online it will be a far exceeded by many other's in the air. So in the time where we as a nation need to look for ways to not only spend our money wisely as well as deliver the warfighter the best, we might want to start by sending Lockheed Martin a cancellation notice. Then afterwards letting the Military actually purchase aircraft that meet their needs, and not ones that the contractor has used for an "ATM Machine". There are many alternatives out there that not only perform better than the F-35 but also are much less expensive and can actually be delivered. So again , perhaps it would be a good thing in this time of budget cutting to focus on programs like these.