{"id":12159,"date":"2019-06-13T22:30:42","date_gmt":"2019-06-14T05:30:42","guid":{"rendered":"http:\/\/cafe.foundation\/blog\/?p=12159"},"modified":"2019-06-13T22:30:42","modified_gmt":"2019-06-14T05:30:42","slug":"vogi-1-evtol-transforms-passively","status":"publish","type":"post","link":"http:\/\/cafe.foundation\/blog\/vogi-1-evtol-transforms-passively\/","title":{"rendered":"Vogi 1 eVTOL Transforms Passively"},"content":{"rendered":"<p>Canadian startup, <a href=\"http:\/\/vogi-vtol.com\/\">the Coriolis g Corporation,<\/a> defies the rules of classification with its Vogi 1 \u201c<a href=\"http:\/\/vogi-vtol.com\/\">passively coupled VTOL tiltrotor<\/a>,\u201d which the company describes as \u201ca tilting quadrotor passively coupled to a winged airframe via a swivel mechanism\u201d.<\/p>\n<p><iframe loading=\"lazy\" title=\"Vogi 1 Official Video\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/1wdutXQaO54?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>\u201cView the only Continuously Variable Transition VTOL\/FW (fixed wing) Aircraft in action.\u201d<\/p>\n<p>The Vogi 1 has demonstrated a novel design solution to achieve the maneuverability and vertical takeoff and landing (VTOL) capabilities of a traditional quadcopter with the efficiency of a traditional winged aircraft.\u00a0 Its design allows passive transition from vertical flight or hovering to winged horizontal flight.\u00a0 It does so without the benefit of algorithms or triple-redundancy controllers.\u00a0 Coriolis g explains, \u201cWithout any active logic, the rotors pivot and swing from parallel to the ground to perpendicular, located above and below the wing.\u201d\u00a0 Note its ability to push backwards from a vertical dive at about the 1:20 point in the video.<\/p>\n<p><iframe loading=\"lazy\" title=\"Vogi 1 on board camera views\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/SDrGnnh6JtQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>An on-board camera view captures a close-up of what\u2019s happening, but not necessarily how it\u2019s happening.\u00a0 Reader can get a better idea by turning to <a href=\"https:\/\/drive.google.com\/file\/d\/0Bw_8Krkk5BiSQmFFdEhlelk4VXM\/view\">Coriolis g\u2019s white paper<\/a> describing in reasonable detail how they pulled it off.<\/p>\n<p>Designers selected possible combinations of traditional configurations, which they classified as Tilt Rotor (TR), Tilt Wing (TW), Tail Sitter (TS), and Quadraplane (QP).\u00a0 Coriolis\u2019 designers chose a combination they call, \u201cPitch-Decoupled Tilt Rotor The solution we have developed is a disruptive departure from all existing designs.<\/p>\n<p>\u201cWe propose a system that decouples the pitch rotation of the thrusters from the fixed wing frame thus allowing independent pitch rotation of the two airframes relative to each other. By decoupling the pitch frames of the two \u2019aircraft\u2019 we can transition from VTOL to FW flight in a naturally stable manner and furthermore use the vertical thrusters as forward thrusters during winged flight. By decoupling the two stable systems we alleviate the risk of instability during transition and improve recovery from failure modes. The design also has a reduced number of moving parts and would be much easier to maintain than other tilt-rotor solutions considered to date.\u00a0 Although it may be classified as tilt rotor system, the dynamic and operational characteristics are sufficiently different from the traditional actuated Tilt Rotor and this new approach is hereby classified as a new Pitch-Decoupled Tilt Rotor or alternatively Passively-Coupled Tilt Rotor.\u201d<\/p>\n<p>By having a fixed wing, Vogi 1 can fly faster than an ordinary quadrotor and achieve a greater range.\u00a0 Even though the aircraft\u2019s weight is greater because of the addition of a wing, the performance gains seem to offset the added mass.\u00a0 Coriolis g points out, \u201cThis especially pays off during longer flights, where takeoff is an increasingly small percentage of the total flight, thereby taking advantage of the lifting surface for a greater fraction of the flight time.\u201d<\/p>\n<p>Vogi\u2019s design allows for a cross between hovering and slow flight the designers call \u201cloitering,\u201d a low thrust exercise that uses little energy and enables an almost stationary persistence above a chosen site.\u00a0 This would seem to make Vogi an ideal candidate for reconnaissance missions.<\/p>\n<p><iframe loading=\"lazy\" title=\"VOGI 2019 Loitering\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/lEJea0Sl08Q?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Because only the propulsion system pivots \u201cto achieve the desired thrust vector, the fuselage does not rotate.\u201d\u00a0 Since passengers would stay in a constantly level frame of reference, the flight experience will be calmer.<\/p>\n<p>It will be fascinating to see how Vogi\u2019s makers translate their stable, but highly aerobatic machine into a people carrier.<\/p>\n<div id=\"facebook_like\"><iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=http%3A%2F%2Fcafe.foundation%2Fblog%2Fvogi-1-evtol-transforms-passively%2F&amp;layout=standard&amp;show_faces=true&amp;width=500&amp;action=like&amp;font=segoe+ui&amp;colorscheme=light&amp;height=80\" scrolling=\"no\" frameborder=\"0\" style=\"border:none; overflow:hidden; width:500px; height:80px;\" allowTransparency=\"true\"><\/iframe><\/div>","protected":false},"excerpt":{"rendered":"<p>Canadian startup, the Coriolis g Corporation, defies the rules of classification with its Vogi 1 \u201cpassively coupled VTOL tiltrotor,\u201d which the company describes as \u201ca tilting quadrotor passively coupled to a winged airframe via a swivel mechanism\u201d. \u201cView the only Continuously Variable Transition VTOL\/FW (fixed wing) Aircraft in action.\u201d The Vogi 1 has demonstrated a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[15,14],"tags":[9481,9482,9483,9484,9485],"class_list":["post-12159","post","type-post","status-publish","format-standard","category-electric_powerplants","category-sustainable_ga","tag-coriolis-g-corporation","tag-passive-transition","tag-passively-coupled-tilt-rotor","tag-pitch-decoupled-tilt-rotor","tag-vogi-1"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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