Strange fighter designs from Lockheed !??!

Does anyone have some more information regarding these two projects ???

The first seems to be an advanced STOVL fighter called “Lockheed Lift-Fan STOVL Fighter Design (~1988)”:

and the other one seems to be even more strange !!! … “Lockheed Reverse Installation Vectored Engine Thrust (RIVET)”

Thanks in advance, Deino 🙂