Concerning good airplane artists, Toth and Evans are, of course, two of the best. Along with them I'd put Alden McWilliams and Russ Heath. There are many more. Joe Kubert could do good planes, but outside of "Enemy Ace" he usually stuck to ground combat. Ditto John Severin, whose machinery of any kind was always right on. Wallace Wood could do great planes but sometimes in his earlier work (like the EC war comics) he'd caricature them somewhat. A couple of later Fiction House artists did nice stuff, too, notably Maurice Whitman and Cesare "Jack Away" Avai. I notice that most of these guys drew in slick, detailed styles. One notable exception is Sam Glanzman. Despite a rough inking style he always took care to make his planes and ships look authentic.