For a country with a $886 billion dollar defense budget, the United States still uses a sizable amount of old gear. Some of the antiquated equipment is around because it works really, really well, and there hasn't come along anything better to replace it with. In other cases, attempts to replace the equipment have floundered, usually due to reasons related to complexity or cost.

Discover the top 10 oldest American aircraft still in use today. From vintage planes to historic warbirds, these aircraft have stood the test of time.

CHAPTERS
00:00 Top 10 Oldest American Aircraft Still in Use
00:41 10. Lockheed C-5 Galaxy
01:41 9. Grumman C-2 Greyhound
02:38 8. Hughes OH-6 Cayuse
03:28 7. Northrop Grumman E-2 Hawkeye
04:39 6. Boeing CH-47 Chinook
05:42 5. Bell UH-1 Iroquois
07:00 4. Boeing KC-135
08:09 3. Lockheed C-130 Hercules
09:12 2. Lockheed U-2
10:13 1. Boeing B-52 Stratofortress

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