By Jeffrey Orear, EAA 529128 This piece originally ran in the May 2025 issue of EAA Sport Aviation magazine. I became interested in building a Hatz biplane after seeing Chuck Brownlow’s (EAA 323477) Bronze Lindy winning Classic many years ago. I’ve always had a soft spot for biplanes, and the Classic really caught my […] The post What Our Members Are Building/Restoring — Wisconsin Hatz Classic first appeared on Hangar Flying.