http://apcnasa3ozl2j74htizuzba5b6nhugbg2qze2nrz43siunkct555fpid.onion
(This is generally true for any orbit-to-orbit transfer deep in the "gravity well" of a planet or moon.) Thus, low-T/W systems may not be suitable for high-priority payloads like people. By contrast, in some cases, low-T/W interplanetary trajectories can be faster than the corresponding minimum energy (Hohmann) high-T/W ballistic trajectory.