Probably flies great scale-- not like those guys had to worry about compressibility in a dive, any way. The more I look at them, the more I want to build a WWI something or other. A guy at our field has a bunch of 1/4 scale WWI stuff--Bristol monoplane, DR-I, Nieuport 17, Sopwith Pup. I'm thinking seriously about Proctor's Sopwith 1-1/2 Strutter.