Hip Pocket Aeronautics Plans Gallery - Whittman's 1938 "Bonzo" https://hpa.aeromodelling.gr/plans/details.php?image_id=457 Fri, 17 Apr 2026 23:37:03 GMT https://hpa.aeromodelling.gr/plans/data/thumbnails/112/w-1_whitmans_1938_bonzo.jpg Whittman's 1938 "Bonzo" https://hpa.aeromodelling.gr/plans/details.php?image_id=457