 On September 29 , Walter Schirra , Eisele , and Walter Cunningham were named as the prime crew for a second Block I CSM flight , AS @-@ 205 . NASA planned to follow this with an unmanned test flight of the LM ( AS @-@ 206 ) , then the third manned mission would be a dual flight designated AS @-@ 278 ( or AS @-@ 207 / 208 ) , in which AS @-@ 207 would launch the first manned Block II CSM , which would then rendezvous and dock with the LM launched unmanned on AS @-@ 208 . 
