Googled Good Guys Garbed in Gaudy Gear

On Earth-One, an American journalist named Richard "Buck" Dare joined a covert group and battled German forces as Captain X.Equipped with a near invisible plastic plane known as Jenny, powered by atomic energy, Dare was aided by his pal Stuffy.

On Earth-Two, an American aviator known as Captain Wings Wendall who piloted a special craft known as the bullet-plane which was state-of-the-art and later adopted a special uniform designed by an adversary.

While Dare of Earth-One would become the grandfather of Ronald Raymond, who was himself the superhero known as Firestorm, there is no known connection between Wendell and Ronnie's counterpart of Rod Reilly, aka Firebrand. Although there may have been, given that Dare's older age from that of his twin.