I've had this problem forever and all these patches have been released and no fix for it. It really needs to be fixed. I'm not the only one with the problem, I made a topic on the General Discussion and many had the same problem of it not appearing in the hangar when Volare! is completed. The same old chopped up bomber always stays there, and is there when you first walk in ( the museum bomber?). And seeing as how I'm on the 360, no mod fix.

I never knew that happened.

It's just the bomber though, you can see it in action in the battle.

I read in the bugs section that the hangar with the B-29 has two model hangars. One (the first I think, with the old bomber) is the first one, and stays until the completion of Volare! with the bomber being lifted from Lake Mead. Two is the hangar that has the restored B-29. The screens as the bottom here show what the B-29 is "before" and "after" completion. The "after" version never shows up in the hangar after completion. http://fallout.wikia.com/wiki/Crashed_B-29