When National Defense Knows No Budget: The Most Expensive Military Vehicles in History
12. E-3 Sentry
Joined the Service: 1972
Produced by: Boeing
Price: $270 million
The Boeing E-3 Sentry, commonly referred to as AWACS (Airborne Warning and Control System), was developed based on the Boeing 707 airframe. This advanced early warning and control aircraft is designed to operate in all weather conditions, providing critical communications, control, command, and surveillance capabilities.
The E-3 Sentry enhances situational awareness and battlefield management for military operations. It has been supplied not only to the United States Air Force (USAF) but also to various international forces, including the Royal Air Force (RAF), French Air Force (FF), Royal Saudi Air Force (RSAF), and NATO allies.
In conclusion, the Boeing E-3 Sentry represents a significant advancement in aerial surveillance and command capabilities. Its proven effectiveness in diverse operational environments underscores its importance in modern military strategy and coalition operations.

The Boeing E-3 Sentry is distinguished by its unique spinning radar dome, located directly above the aircraft's fuselage. This feature allows for comprehensive surveillance and tracking capabilities. During the production period from 1977 to 1992, a total of 68 units were constructed, each with a price tag of $270 million.
Although production of the E-3 Sentry ceased decades ago, the aircraft remains operational, continuing to play a vital role in military surveillance and command missions. Its enduring effectiveness highlights the longevity and reliability of its design.
In conclusion, the E-3 Sentry exemplifies advanced aerospace technology and remains a critical asset for air defense and situational awareness. Its distinctive radar system and continued use underscore its significance in modern military operations.