Which model is referred to with the designation E-6B?

The E-6B is specifically designated as an airborne command post, serving an essential role in U.S. military operations. This aircraft is primarily tasked with providing a communications relay and serving as a command and control platform for strategic nuclear forces. It is equipped with advanced communication systems that enable command authority to relay instructions and maintain command continuity in various scenarios, including potential nuclear engagement situations.

This capability is vital for ensuring that command decisions can be communicated reliably, even in contested or high-risk environments. The design and functionalities of the E-6B make it an integral part of the U.S. Navy's strategic deterrent force, linking the President and the Secretary of Defense to the nuclear triad and ensuring a robust response capability.

In terms of its role compared to other models, such as early warning aircraft, logistics transport aircraft, and electronic surveillance aircraft, the E-6B's primary mission focuses on command and control rather than surveillance, transportation, or early warning capabilities. This distinction clearly outlines why the E-6B is accurately referred to as an airborne command post.