
Source: my_public_domain_photos / Flickr
24. U-2 Dragon Lady
> Type: Special Mission
> Active in Air Force: 26
> First flight: August 1955
> On order for the Air Force: 0

Source: Public Domain / Wikimedia Commons
23. E-3 Sentry
> Type: Special Mission
> Active in Air Force: 31
> First flight:February 1972
> On order for the Air Force: 0

Source: Public Domain / Wikimedia Commons
22. U-28A Draco
> Type: Special mission, transport
> Active in Air Force: 35
> First flight: May 1991
> On order for the Air Force: 0
21. HC-130J Combat King II
> Type: Special Mission
> Active in Air Force: 38
> First flight: July 2010
> On order for the Air Force: 9

Source: Clive Wells / iStock via Getty Images
20. KC-10 Extender
> Type: Tanker
> Active in Air Force: 40
> First flight: July 1980
> On order for the Air Force: 0
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