Mushroom Model Publications [MMP] next Single monograph [No. 42] will be on the PZL P.11f
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/single-no--42-pzl-p-11f-out-soon
This is partial text from the full article (usually with photos) at https://aeroscale.net/news/single-no--42-pzl-p-11f-out-soon