[kpeel]

Yeah, I was joking a little. Most aircraft would still work pretty well off of inertial data. However there are quite a few weapons systems that just plain won't work without GPS.

BTW, I'm not a pilot, but I work for a government aerospace contractor, so I have some experience in this.

[icegreentea]

I thought the most common ones (JDAMs) still had an inertial navigation system cause GPS/INS is used nearly everywhere. It'll probably have horrible accuracy (I guess that depends on how the coordinates sent to the bomb are handled... if it can be calculated as an offset of what the INS thinks it is, then it wouldn't be that bad). But still better then unguided bombs.

[mkr-hn]

I figured GPS-guided bombs would be the only thing impacted. Cruise missiles match terrain to what's stored in memory to know where to drop.