My Dad flew this variant of the PB2Y. It was the medevac version and he actually flew his Marine Corps 1st cousin off of Saipan. I am looking for sources for more information on this aircraft and, among other things, am curious as to just how many of this type were produced, unit designations...
Check out this article at RetroMechanix.com on an experimental Consolidated PB2Y-3 Coronado flying boat equipped with integral JATO motors in the rear step of the hull:
I believe the installation is unique to this particular Coronado, as JATO units were normally hung externally under wing...