[blitz128]

I am a bit confused on the negative outlook on glsdbs. Of course I have no knowledge on the subject but would seem if some systems work, there should be away to incorporate that kind of guidance is this system

Curious what is different between the two guidance systems, if air launched appears to be effective

[PIF]

Made by Boing Boing - no telling what the difference is or if they will ever fix the problem; the still haven’t fixed their plane problems - a company in steep decline under terrible management.

[FtrPilot]

Why is GLSDB more susceptible to Russian electronic warfare than SDB? A few thoughts.

SDB and GLSDB are identical and share a GPS/IMU set. The relevant differences are range and target selection.

https://x.com/John_A_Ridge/status/1794084713868513578

The article at the link above blames INS drift.

Here's a post from another blogger:

Could be that the SDB is getting its initial position from the launch platform or starts using its own GPS receiver on takeoff, so the IMU is initialized at launch. GLSDB maybe doesn't get a fix until it's in the air at high altitude where jamming is bad.

This is what I believe...When launched from an aircraft the SDB IMU gets accurate position information from the launch aircraft.

My guess is that HIMARs launchers do not pass position information to the GLSDB. The GLSDB gets its initial position, after launch, from GPS which may already be jammed.