Zinda, who was introduced in Blackhawk #133, was the sole female member of the gang, but did not appear in every story. Just when they figured a little leggy cheesecake might be useful. Zinda, as you can see, has a well-filled out Blackhawk tunic, long legs and a mini-skirt with high boots.
Artists Dick Dillin and Chuck Cuidera got away with some tease (a crotch shot in panel 1, page 6, and the Blackhawks on the same page hanging off Super Zinda, including at least one looking up her skirt.) All of it approved by the Comics Code.
From Blackhawk #151 (1960):