[Army Air Corps]

Just suppose that the GPS signal is also jammed and the critter doesn’t know where it is much less where “home” is.

[arkady_renko]

Just suppose that the GPS signal is also jammed and the critter doesn’t know where it is much less where “home” is.

The Obama family's investment in LightSquared is paying off?

[super7man]

I think gyros alone can get it close to home where communication can be re-established. Just guessing.

[USAF80]

I’m sure they have a self contained navigation system that they can home too. Rarely do they sorely rely on GPS because it can be blocked.

[fso301]

Just suppose that the GPS signal is also jammed and the critter doesn’t know where it is much less where “home” is.

Backup nav systems should let it know pretty much where it is in 3D space.

[Myrddin]

Just suppose that the GPS signal is also jammed and the critter doesn’t know where it is much less where “home” is.

You still have inertial navigation...assuming that it was part of the system. Counting on GPS to always be there is a single point of failure kind of mistake. Ditto for assuming the satellite links will be there.