I came across a P-51 Mustang model submitted by pb-design on free3d.com. Some of the comments gave the model a bad rap. Sure, it was somewhat of a fixer-upper. But, with a little work, it turned out to be a pretty good model. I added new retractable LG, load/no load flaps, still prop and prop blur, droppable fuel tanks and of course, the missing bubble canopy. Here's couple of quickie renders of it.