your link is broken but the howstuffworks page is quoting from the Wikipedia, which sources the GPS guidance to an anonymous post on globalsecurity.org - itsself not a bad source - however the method of delivery is they open the back of the aircraft, push the bomb on a wooden pallet out the door, wait a few seconds, activate a parachute, wait a few seconds for the gps to kick in, whereby “fins” guide it to its location.
You’ll forgive me for being skeptical about 8m precision on a remote-controlled parachute from 35,000 feet at 400mph using rudders
your link is broken but the howstuffworks page is quoting from the Wikipedia, which sources the GPS guidance to an anonymous post on globalsecurity.org - itsself not a bad source - however the method of delivery is they open the back of the aircraft, push the bomb on a wooden pallet out the door, wait a few seconds, activate a parachute, wait a few seconds for the gps to kick in, whereby “fins” guide it to its location.
You’ll forgive me for being skeptical about 8m precision on a remote-controlled parachute from 35,000 feet at 400mph using rudders