On page 261 of the novelization, when Gipsy is falling from lower space after killing Otachi, Pentecost gives them informations how to survive the impact. Before that, he says "I´ve done this before!". What does he mean? Newt´s reaction to Otachi´s ability to fly (that´s in the novelization too) sugests that there was no other flying Kaiju before. So how could a Jaeger get at such an altitude? It only would be possible with a rocket, but why would they rocket a Jaeger into space and then drop it?