U-2 Dragon Lady – $9.1 million
Lockheed Martin’s U-2 Dragon Lady is a strange-looking spy plane designed to fly at very high altitudes. It could fly up to 70,000 feet (21,300 meters) and avoid enemy radar. The plane was first put into service in 1955 and cost $950,000 at the time. That’s $9.1 million in today’s money. Lockheed Martin produced only 104 aircraft, and they were decommissioned in 1989, making it a fairly long run.
Lockheed C-5 Galaxy
A C-5 Galaxy is an incredible plane that provides the United States Air Force with a heavy intercontinental airlift that can easily transport oversized loads. It is one of the world’s largest military aircraft, and its construction is extremely costly. The C-5’s cheapest model costs around $100.37 million and can cost up to $224.29 million. It was first introduced in 1970 and is still operational today.