We have so far discovered that it would seem to be the sound which fish make while in OR out of water.

So maybe they were alerted to something and surveilling and listening closely.

Concerning the plane type: E-6B Mercury: America’s most lethal aircraft ever

From the article: "The US Navy’s imperturbable E-6 Mercury maintains the survivable and reliable communication links between the National Command Authority and the US nuclear forces in the event of full-blown nuclear war. After nuclear weapons became a reality, E-6B Mercury evolved to serve its mission strictly as America’s absolute last line of defense in the face of nuclear war."

Now I'm even more intrigued.

Edit: the transponder is off now, but it was headed back towards Oklahoma.

We have so far discovered that it would seem to be the sound which fish make while in OR out of water.

So maybe they were alerted to something and surveilling and listening closely.

Concerning the plane type: E-6B Mercury: America’s most lethal aircraft ever

From the article: "The US Navy’s imperturbable E-6 Mercury maintains the survivable and reliable communication links between the National Command Authority and the US nuclear forces in the event of full-blown nuclear war. After nuclear weapons became a reality, E-6B Mercury evolved to serve its mission strictly as America’s absolute last line of defense in the face of nuclear war."

Now I'm even more intrigued.