Controlling the Nukes: This Military Plane Could Easily Destroy the World The U.S. Navy’s placid-looking E-6 Mercury, based on the 707 airliner, seems particularly inoffensive, but that is a lie. Here's What You Need to Remember: The E-6 platform should remain in service until 2040 thanks to a service-life extension program and continual tweaks to its systems and radios. While the Mercury has demonstrated its usefulness as an airborne communication hub for supporting troops in the field, the airborne command post will be considered a success if it never has to execute its primary mission. In a military that operates Raptor stealth fighters, A-10 tank busters, B-52 bombers and Harrier jump jets, the U.S. Navy’s placid-looking E-6 Mercury, based on the 707 airliner, seems particularly inoffensive. But don’t be deceived by appearances. Though the Mercury doesn’t carry any weapons of its own, it may be in a sense the deadliest aircraft operated by the Pentagon, as its job is to command the launch of land-based and sea-based nuclear ballistic missiles.