| In the United States government purchases are largely related to defense. Typically the Department of Defense announces its need for military aircraft or missile systems, specifying a multitude of requirements. Large firms specializing in defense Products subsequently submit bids, detailing proposed technical solutions and designs, along with Cost estimates, hoping to win the contract. Firms may also research and develop materials, electronics, and components relating to their bid, often at their own expense, in order to enhance their Chance of winning the contract. Following a negotiation phase, a manufacturer is selected and a prototype vehicle is developed and built, and then tested and evaluated. If approved by the Department of Defense, the program enters production. This process usually takes Many years. |