B-2 Stealth Bomber

During the charge, none of these planes were shot down an enemy. This aircraft was manufactured as many as 21 units, where 1 unit has fallen not because of the fighting at their base, Guam. By law, the Americans are not going to sell stealth aircraft (B-2 Spirit, F-22, F-117) to any country.

The cost of making this plane starting from the idea, prototype to production a plane is 23 billion USD (about 205 trillion USD.). However, the price of a plane is 1.3 billion USD (about 10.5 trillion USD.). When 21 units of aircraft that is ready to operate anywhere around the world multiplied by 1.3 billion USD plus the cost of research worth 23 USD, then it's all worth 50.3 billion USD (around 490 trillion USD).