Who's This? One of the worst Batman villains of all time, on page 25 of Who's Who Update '87 #3.
How you could have heard of him: He has had a small number of post-Crisis appearance, most "notably" in a couple of issues of Young Justice and in Gotham Knights #33, and was said to have been killed in Infinite Crisis #3 (2006) for not agreeing to join the Secret Society of Super-Villains. He survived, however, just so he could should up in 52, where he was killed for good by Bruno Manheim. But if you actually remember him, it's probably thanks to a couple of appearance on the Batman: The Brave and the Bold animated series, voiced by Jeffrey Combs.
Example story: Batman #133 (1960) "Crimes of the Kite-Man" by Bill Finger and Dick Sprang
Not only isn't Kite-Man as predictable as Batman's regular, Arkham-worthy crop of villains, but he's springing mobsters from prison for a price, using a giant self-propelled kite, no less. Spotted by Batman, the Light-to-Mid-Dark Knight Detective raids the contest to kite-ski up to the bad guys!
But a perfectly fun story, with high-flying action and plenty of variety. Batman is probably the better kite-flyer, but then, he's good at everything. That's HIS gimmick. I'm not surprised Kite-Man didn't get a lot of play, but I think he makes a good Jack Schiff-era or '66 villain.
Who's Next? Moving on to Update '87 #4... anyone you'd like to see covered?