At this early point - first generation warp drive and all - I don't know if the Valiant
should even have a hangar bay. An airlock for EVA repair work and a docking port for when its' home, yeah, but I figure it would probably would be more like the Alexei Leonov
and have remote-controlled automated probes. This was a ship intended for survey and system fly-by work, staying in the general neighborhood around the solar system (at least until that magnetic space storm), and its crew was likely intended to spend all their time on the ship scanning and mapping rather than risk getting anyone stranded on an alien world. Time enough for planetside exploration once you've got the basics of interstellar travel down.