20 B-2 Spirit aircraft are in active service, out of 21 built.
4x General Electric F118-GE-100 non-afterburning Turbofans (17,300 ,77kN Thrust) Source: http://en.wikipedia.org/wiki/B-2#Specifications_.28B-2A_Block_30.29
Two
The stealth bomber actually was deveoped in the late 1980's by Lockheed - Martin. The inital cost to the United States was $2 billion per bomber.
Unfortunately for a stealth bomber the stealth only applies while it is functional.
At the moment, the B-2 Spirit is the only stealth bomber in service.
No. Russia is still using their old bomber made in 1959. It has no stealth technology and the US has intercepted them multiple times and escorted them back to Russian air space. It has no stealth technology and still uses cannons to defend itself. This will be Russia's bomber until 2040. I doubt they will replace it with a stealth type bomber because there military budget couldn't afford it. Russia's military is under funded as it is and a stealth bomber program would be very expensive.
2500gallons
It was dropped by a B-29 bomber.
There's only one full stealth bomber in service - the B2 Spirit.
No
The stealth bomber can fly up to 50,000 ft above sea level.
To earn the Stealth Bomber emblem, you must call in 25 of them. Which is killstreak challenge 3.
cod 4#2 has a stealth bomber and the the game is accurate game so it is pretty big