"Apollo Facts" http://www.geocities.com/apollofacts/ states: "It would have been impossible for the astronauts to get from the Command Module to the conical space capsule, as the heat shield would obstruct them. It would have also been impossible for them to get out at the conical/pointed end of space capsule, as this section was occupied by the 3 large reentry parachutes, which ejected from the conical end." Yet as can be seen from Grissom's site, this photo shows there seems to be room for a connecting tunnel to the LEM http://www.apollo1.info/images/PixArchive/10074789.jp <http://www.apollo1.info/images/PixArchive/10074789.jp%20> And surely there was never meant to be access from the Command Module to the Service Module, so the heat shield obstruction is not relevant. In the film "Apollo 13" it's made out that the astronauts have enough room to be manoeuvre around each other tolerably in the Command Module. But http://www.apollo1.info/images/PixArchive/ap1-S66-41851.jpg shows how tight it really was. Could three men survive 8 days in such cramped quarters (the pilot would have breathed real easy while his colleagues were away "on" the moon!), whether to the moon or in low-earth orbit?!