Walter BoraThe Walter Bora was a Czechoslovak nine-cylinder, air-cooled radial engine for powering light aircraft that was developed in the 1930s by Walter Aircraft Engines.Variants;Bora II;Bora II-RApplicationsAero A.200Nardi FN.305RWD-9SIAI-Marchetti SM.101Engines on displayA preserved example of the Walter Bora engine is on display at the following museum:Prague Aviation Museum, Kbely