Re: Early LM prototypes with round front hatch.

http://www.astronautix.com/craft/lmhatch.htm

"The overhead window would enable the LEM commander to see the moon
during powered descent and ascent portions of the flight, and thus
would afford the crew a visual attitude and attitude reference."

WTF?

Even with Pete Conrad as CDR I don't think the overhead window ever
pointed towards the ground. I can almost imagine being able to see the
horizon through that window while in orbit, but it seems unlikely
anybody would use it when under power.

.