trans-space ship; see also BTG IV and BTG V for two systems of space ships

is the wear and tear of the parts of our ship’s machinery worth while for the sake of ending our journey a little sooner? B58

AND B51 B54 ff B56 ff B108 B152 B176 B523 ff B657 ff B742 B744 B917 ff B1054 B1144 B1160 ff B1165 B1173 ff B1178 B1181