From Land to Air, Breaking Budget Records: The Priciest Military Vehicles Ever Constructed
15. Phoenix Constant WC-135W
Joined the Service in: 1993
Producer: Boeing
Price: $208 million
The WC-135 Constant Phoenix, often referred to as the "weather bird" or "sniffer" by program staff and foreign media, has been in service with the U.S. Air Force (USAF) since 1965. This specialized aircraft was inspired by the C-135 Stratolifter and serves a crucial role in monitoring nuclear activity.
The primary function of the WC-135 is to identify and detect nuclear explosions, utilizing advanced sensors and equipment to collect atmospheric samples. These capabilities are vital for verifying compliance with international nuclear treaties and assessing potential threats.
In conclusion, the WC-135 Constant Phoenix is an essential asset in the USAF's arsenal, providing critical intelligence and monitoring capabilities in the realm of nuclear detection. Its unique mission underscores the importance of maintaining situational awareness in global security.

WC-135W Constant Phoenix
The Boeing WC-135 Constant Phoenix is a rare aircraft, with only 10 units constructed, and currently, only two remain in active service. A more commonly known variant is the OC-135B Open Skies, which serves a different mission focused on reconnaissance and treaty verification.
Following the reduction of Cold War hostilities in the early 1990s, most of the remaining WC-135s were placed into storage, reflecting the changing strategic landscape. The limited number of operational WC-135s highlights its specialized role and the importance of maintaining a capable fleet for nuclear detection.
In conclusion, the WC-135W Constant Phoenix remains a critical asset for the U.S. Air Force, despite its limited numbers. Its unique capabilities in nuclear monitoring ensure that it continues to play an important role in national security and international compliance.