[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/grzmilas-orkan-ii-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki40\/grzmilas-orkan-ii-wikipedia\/","headline":"Grzmilas Orkan II – Wikipedia","name":"Grzmilas Orkan II – Wikipedia","description":"before-content-x4 From Wikipedia, the free encyclopedia Orkan II Role Single sear light aircraft after-content-x4 Type of aircraft after-content-x4 National origin","datePublished":"2016-06-09","dateModified":"2016-06-09","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","url":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","height":"1","width":"1"},"url":"https:\/\/wiki.edu.vn\/en\/wiki40\/grzmilas-orkan-ii-wikipedia\/","about":["Wiki"],"wordCount":1130,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4From Wikipedia, the free encyclopediaOrkan IIRoleSingle sear light aircraft       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Type of aircraft       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4National originPolandManufacturerTadeusz GrzmilasDesignerTadeusz GrzmilasFirst flight9 September 1928 or 5 October 1928Number built1The Grzmilas Orkan II was a Polish one-off, single-seat sports aircraft. It came second in the second National Lightplane Contest held soon after its first flight, with outstanding take-off and climb characteristics. Its designer and builder continued to use it until 1939.Design and development[edit]The Orkan (Whirlwind) II was the second aircraft designed by Tadeusz Grzmilas and followed the Orkan I, a glider. Grzmilas was serving in the Polish air force at Pozna\u0144 and obtained permission to build it in the military workshops there during the 1927-8 winter, with the Second National Lightplane Contest, scheduled for late October 1928 in Warsaw, in mind. He took it on its first flight on either 9 September 1928[1] or 5 October 1928.[2]It had a two part, thick, constant thickness, rectangular plan, two spar wing either with plywood covering ahead of the forward spar and  canvas covered behind[1] or entirely fabric covered.[2]Ailerons extended to the wing tips. Each half-wing was braced to the lower fuselage longerons by a pair of parallel, steel tube struts to the spars and supported at the central joint low over the fuselage on inverted V-struts.[2][1]The Orkan II was powered by a 45\u00a0hp (34\u00a0kW) Anzani six-cylinder radial engine which Grzmilas had won as a prize for his success at the Second Polish Glider Contest of 1925, flying the Orkan I. It was mounted uncowled via a rounded,  light alloy covered nose to the rectangular section, wooden framed and ply covered fuselage. An open cockpit under the wing trailing edge ws provided with a rounded cut-out for a better upward field of view. The horizontal tail, like the wing, was rectangular in plan and fabric covered. It was mounted on top of the fuselage and strut-braced on each side to the lower longeron; the elevators had a cut-out to allow movement of the rudder, which was fabric covered and rectangular in profile apart from its lower edge, angled for ground clearance. The fabric covered fin had a strongly cropped triangular profile.[2][1]       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4The Orkan II’s fixed, conventional landing gear had mainwheels joined by a single axle on steel tube V-struts from the lower fuselage longerons at the bottom of the wing struts, together with a tall tailskid.[1]Soon after its first flight, the Orkan II took part in the Second National Lightplane Contest. Flown by Grzmilas it gained second place overall, with first places for the shortest take-off (60\u00a0m (200\u00a0ft)) and for the greatest altitude reached in 30 minutes (3,650\u00a0m (11,980\u00a0ft)).[2]After the contest Grzmilas flew the Orkan from time to time during his service career, during which he was based at D\u0119blin, Krak\u00f3w and Lublin. In September 1939 he stored it in the L.W.S. factory at Lublin where it was later destroyed.[2][1]Specifications[edit]Data from Cynk, 1971[2] except where notedGeneral characteristicsCrew: OneLength: 5.5\u00a0m (18\u00a0ft 1\u00a0in)Wingspan: 9\u00a0m (29\u00a0ft 6\u00a0in)Height: 2.1\u00a0m (6\u00a0ft 11\u00a0in)Wing area: 12.5\u00a0m2 (135\u00a0sq\u00a0ft)Empty weight: 273\u00a0kg (602\u00a0lb)Gross weight: 393\u00a0kg (866\u00a0lb) normal loadedPowerplant: 1 \u00d7 Anzani 6-cylinder radial, 34\u00a0kW (45\u00a0hp)Propellers: 2-bladedPerformanceMaximum speed: 125\u00a0km\/h (78\u00a0mph, 67\u00a0kn) at sea levelCruise speed: 110\u00a0km\/h (68\u00a0mph, 59\u00a0kn)Stall speed: 70\u00a0km\/h (43\u00a0mph, 38\u00a0kn) minimum speed[1]Range: 400\u00a0km (250\u00a0mi, 220\u00a0nmi) [1]Service ceiling: 4,500\u00a0m (14,800\u00a0ft)Rate of climb: 3.5\u00a0m\/s (690\u00a0ft\/min) imitial[1]Time to altitude: 30 min to 3,650\u00a0m (11,980\u00a0ft)Take-off distance: 60\u00a0m (200\u00a0ft)References[edit]     (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/grzmilas-orkan-ii-wikipedia\/#breadcrumbitem","name":"Grzmilas Orkan II – Wikipedia"}}]}]