File:Jon Johanson's RV-4 VH-NOJ.JPG

Summary
Van's RV-4 built and flown by Australian pilot Jon Johanson, in which he made several around-the-world and record-breaking flights; on display at the South Australian Aviation Museum in Port Adelaide.

Image taken by YSSY guy on 17 January 2019 and uploaded for use in the Oswald Watt Gold Medal article. YSSYguy (talk) 12:32, 10 October 2019 (UTC)