Mobile Suit Gundam Episode 42: Space Fortress: A Baoa Qu
Episode 42 of 43 of Mobile Suit Gundam, aired January 19, 1980, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Federation forces, including White Base, proceed to invade the Fortress of A Baoa Qu despite losing half of their combined fleet caused by Zeon's Solar Ray; Amuro and Char -now piloting the Zeong- engage in battle again.