Emergency Landing Plan B was a landing maneuver contingency plan improvised by James T. Kirk in 2287.
Due to an impending Klingon attack, the shuttle Galileo could not perform the usual rather slow landing procedure in the shuttlebay of the USS Enterprise-A. Kirk therefore ordered the ship to prepare for Emergency Landing Plan B, which initially confused Pavel Chekov and Montgomery Scott. Kirk then elaborated that the "B" stood for barricade; the Galileo went to full speed and crashed into the ship's shuttlebay, where a net barricade stopped it before the shuttle broke through the shuttlebay's wall. (Star Trek V: The Final Frontier)