A 1-hour flight of the Boeing E-4B Nightwatch doomsday plane costs almost $400,000 - the trio includes the nuclear bomber B-2 Spirit and the supersonic B-1B Lancer

The US Government Accountability Office has revealed information on how much it costs for 1 hour of military flight

airplanes and helicopters that are in service with the Air Force, Navy, US Army and Marine Corps.

What is known

Let's start with helicopters. The most expensive is the MV-22B Osprey. The cost of one hour of flight is almost $43,000. Although formally the Osprey is a tiltrotor.

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One hour flight of the legendary A-10 attack aircraftThe Thunderbolt II costs just $22,500, putting the Warthog roughly on par with the F-16 Fighting Falcon (almost $27,000).

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The most expensive US fighter is the F-22 Raptor.One hour of flight costs approximately $85,000, making it more than double the cost of another fifth-generation fighter, the F-35 Lightning II (about $42,000).

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As expected, the top three includes bombers.But not the B-52H Stratofortress ($88,000+). In third place is the nuclear bomber B-2 Spirit with a cost of almost $151,000 for 60 minutes of flight. One hour of B-1B Lancer flight costs more than $22,000.

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But the most expensive aircraft was the Boeing E-4B Nightwatch doomsday plane. The cost of one hour of flight is more than $372,000.