Vamos con una de helicópteros en tándem. El primero de ellos, el Piasecki YH-16A-PH:
https://www.thisdayinaviation.com/5-january-1956/Piasecki YH-16A-PH Transporter 50-1270 hovers in ground effect. (Piasecki Aircraft Corporation)Harold W. Peterson (left) and George Callahan, with the prototype Piasecki YH-16A Turbo Transporter, 50-1270. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight Test Engineers)The Piasecki YH-16A Transporter was the world’s largest helicopter in 1956. (Piasecki Aircraft Corporation)
Prototype Piasecki YH-16A Transporter 50-1270, hovering in ground effect at Philadelphia Airport, 1955. (Piasecki Aircraft Corporation)El siguiente, el Bristol 173:
https://www.baesystems.com/en/heritage/bristol-173Fly-past by the prototype Bristol 173 G-ALBNComo no era lo suficientemente feo, le pusieron alas:
Second prototype Bristol 173 G-AMJI in winged configurationEvolucionó en el Bristol 192 Belvedere:
https://www.baesystems.com/en/heritage/ ... -belvedereBristol 192 Belvedere XG464 serving with the RAF in SingaporeBristol Belvedere (XG 461) lifts a Bloodhound missile complete with trailerY ya para terminar, el Piaseki PV-3 / HRP-1:
https://www.boeing.com/history/products ... craft.page y
https://en.wikipedia.org/wiki/Piasecki_HRP_RescuerA U.S. Coast Guard Piasecki HRP-1G Rescuer. The USCG operated three Flying Bananas (as they were colloqually known) starting in 1948. They were based at CGAS Elizabeth City, North Carolina, and used until 1951. CG-111826 crashed in 1951, the other two were returned to the U.S. Navy.