Originally posted by gbleck
GPS guided JDAMS are not designated as presission weapons. They are designated near pression. That said though yes with the joint munition series weapons the B2 has pleanty of great stuf to drop, launch or lob at all kinds of targets. Still though laser guided munitions will stay in the inventory as GPS guided munitions relly on the satalites being up. If the satalites are taken out or the frequencys they work on are jamed no more JDAMs or JSLAMs.
My understanding is that with a 10 digit grid coordinate, you're looking at 1-meter accuracy. I don't know what the circular probability of error is for a JDAM guidance kit is, but from what I've seen, if the coordinates are accurate, the bomb smacks it. As for the laser-guided weapons, they aren't all weather, all climate, and require a designator. A B-2 won't typically have something lasing for it. In the tactical mission, lasers will still be used (Hellfire more specifically) and sure, they'll stay in service until we run out of kits, but the future is GPS guidance. Last, and this
is a question, how do you jam GPS frequencies? The only technique I can think of is at the source--i.e. an enemy satellite that has an active jammer on those frequencies. You can't realistically jam at the target end, can you? We used to discuss this in my former life.