ive had this several times.

i kill some people in an area but im overloaded so i run out the building, lets say primm hotel for arguments sake, fast travel to good springs, fast travel back and those bodies with all their clothes and equipment have disappeared completely.

an ingame day hasnt even passed (i can tell because my SLP on harcore mode doesnt move much). and there arent any enemies left to take the equipment. so where are all the bodies gone?
anyone else have this happening?

very annoying. didnt happen in fo3.

I think bodies are removed whe fast travelling, part of cleaning up a cell. This is not time based in FO NV (I think).

I also noticed this too - one thing that seems to prevent disappearance is adding (or removing) something from the body. I used a body for a temporary stash and it was able to handle fast travelling at least for a little while. Other interesting this is some of the geckos I killed during the tutorial lasted a very long time and I had removed the meat/hide.

it cant be to do with fast travelling purging cells because there are still dead bodies from a firefight in goodsprings, and that happened days ago ingame and also those bodies have no equipment.

i might leave 1 thing on dead enemies and then fast travel out.