The Biggest, Most Expensive Military Planes Ever Produced

CoralHelix Updated 2025-09-06

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9. Sentry E-3G

Commenced to Serve: 1972 1992–1997 (G upgraded in 2015)–retired Expense: *$270 million The E-3 Sentry is an airborne early warning and control aircraft, often referred to as AWACS. Developed by Boeing, it is based on the 707 aircraft. The Sentry has been used by NATO, the USAF, the RAF, the FAF, and the RSAF. Its distinctive rotating radar dome makes it easily recognizable.

Twitter.com/E-3G Sentry @JetPhotos A total of 68 units were produced, with the E-3G being the latest model. The upgrade for the USAF Block 40/45 includes enhanced technology and software, improving computer processing, communications, threat tracking, and automating tasks that were traditionally manual.

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About the Author: CoralHelix

I write in layers: quick takeaway up front, depth when you want more.

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Comments

StellarTactician 07/17/2025

Learned something meta here.
EmberAtlas 09/08/2025

Anticipates lifecycle transitions.
LunarGlyph 08/06/2025

A living-system sensibility.
KineticScribe 08/24/2025

Serves as a narrative anchor.
DuneNavigator 09/30/2025

Bookmarking this for later reflection.