RotorWay Scorpion Too - photo Royal Aircraft Factory F.E.8 - photo Rubik R-16B Lepke - HA-1039 R-18 Kánya - HA-RUG R-31 Dupla - photo Rumpler Taube - photo Rutan 33 VariEze - C-GHYP - photo Ryan 69 X-13A Vertijet - USAF: 54-1620, 54-1620 92 VZ-3RY Vertiplane - US Army: 56-6941 L-17B Navion - N805Z SCW-145 - NC18911 S-T-3KR NR-1 Recruit - USN: photo S-T-3KR PT-21 - N48777 S-T-3KR PT-22 Recruit - C-GHDN - N50880 - N53004 - N57426 - N58729 - N822PT - photo - photo S-T-A YPT-16 - USAAC: photo S-T-M-2 - N466WA