![\"\"](\"http:\/\/www.urheiluilmailu.com\/wp-content\/uploads\/2010\/11\/IMG_5573e.jpg\" "\\"IMG_5573e\\"")
<\/a><\/p>\nMoottoroitu riippuliidin saavuttaa moottorillaan k\u00e4yt\u00e4nn\u00f6ss\u00e4 parhaimmillaan kolmen kilometrin lentokorkeuden optimaalisissa olosuhteissa. Mit\u00e4 korkeammalle menn\u00e4\u00e4n, sit\u00e4 ohuemmaksi ilma muuttuu ja sit\u00e4 v\u00e4hemm\u00e4n on moottorilla happea k\u00e4ytett\u00e4viss\u00e4. Liitimen lent\u00e4j\u00e4 ei viel\u00e4 kolmen kilometrin korkeudessa merenpinnasta tarvitse lis\u00e4happea, mutta moottoriin hapen m\u00e4\u00e4r\u00e4n v\u00e4heneminen vaikuttaa suuresti. Hapen m\u00e4\u00e4r\u00e4n v\u00e4heneminen tekee palamistapahtumasta ep\u00e4optimaalisen, k\u00e4yt\u00e4nn\u00f6ss\u00e4 moottori k\u00e4y rikkaammalla seoksella kuin normaalisti. Moottoroiduissa riippuliitimiss\u00e4 k\u00e4ytetyiss\u00e4 moottoreissa polttoaineseosta ei yleens\u00e4 voi lennon aikana s\u00e4\u00e4t\u00e4\u00e4. Seoksen muuttuminen rikkaaksi pienent\u00e4\u00e4 moottorin tehontuottoa. Vastaavasti my\u00f6s potkuri toimii ohuemmassa ilmassa heikommin. N\u00e4m\u00e4 tekij\u00e4t rajoittavat lentokorkeutta.<\/p>\n
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Riippuliitimen sek\u00e4 moottoroidun liitimen liitosuhde vaihtelee koulutusliitimien 8:1:st\u00e4\u00a0aina\u00a0kilpaliitimien 15:1-18:1 -lukemiin. Liitosuhde 8:1 tarkoittaa sit\u00e4, ett\u00e4 jokaista alasp\u00e4in liidetty\u00e4 kilometri\u00e4 kohden liidin liit\u00e4\u00e4 eteenp\u00e4in kahdeksan. Mik\u00e4li moottori sammutetaan kilometrin korkeudessa, p\u00e4\u00e4see optimaalisissa olosuhteissa parhaan liitoluvun tuottaman lentonopeuden valitsemalla kahdeksan kilometrin p\u00e4\u00e4h\u00e4n.<\/p>\n
Liitimet testataan ja sertifioidaan kest\u00e4m\u00e4\u00e4n p\u00e4\u00e4s\u00e4\u00e4nt\u00f6isesti +6 G kuormitus. Kevyest\u00e4 rakenteesta huolimatta liitimet ja valjaat kest\u00e4v\u00e4t kuormitusta erityisen hyvin. Reilut varmuuskertoimet tekev\u00e4t lent\u00e4misest\u00e4 huoletonta ja turvallista.<\/p>\n Lentoaika moottoroiduilla liitimill\u00e4 vaihtelee tunnista nelj\u00e4\u00e4n-viiteen tuntiin. Laitteissa oleva moottori kuluttaa n. 2.5 litraa tunnissa\u00a0kaksitahti\u00f6ljyll\u00e4 ter\u00e4stetty\u00e4 98E:t\u00e4 matkalentotehoilla. Liitimien tankkeihin mahtuu polttoainetta 5-10 litraa. Nelj\u00e4n tunnin aikana liidin voi 50-80 km\/h matkanopeudellaan kulkea verrattain pitki\u00e4kin matkoja.<\/p>\n The powered hang-glider is able to reach the altitude of 3 kilometres (approx. 9000 ft). The higher the glider climbs, the less there are oxygen available. At the altitude of three kilometers from the sea level the pilot does not require additional oxygen, but the engine’s performance is affected. The decreased amount of oxygen makes the combustion inefficient and the engine runs with too rich mixture which decreases its performance. The efficiency of the propeller is also affected in thinner air. In the majority of powered hang-gliders, the fuel-air ratio is not adjustable in-flight, which limits the available power at high altitudes and so the maximum altitude is also limited.<\/p>\n While unpowered, the glide ratio of the hang-glider varies from 8:1 to 15-18:1. The beginner-level gliders and skyfloaters have the glide ratio of 8:1 while the higher performance competition gliders and rigid-wing gliders can reach up to 18:1 glide ratios. The glide ratio of 8:1 means that the glider flies forward 8 kilometers per every descended kilometer. So if the engine is shut down at altitude of one kilometer, the glider is able to fly eight kilometers in optimal conditions when flown at the optimal airspeed for the best glide ratio.<\/p>\n While hang gliders are not built for aerobatics, they are tested and certified to withstand 6 G’s of positive load. Despite of their very lightweight construction, the equipment is able to withstand loads very well. Large safety cofactors make flying safe.<\/p>\n Riippuliitimen suorituskyky m\u00e4\u00e4r\u00e4ytyy hyvin pitk\u00e4lti sen mukaan, ett\u00e4 kyseess\u00e4 on lentolaite, jonka lentoonl\u00e4hd\u00f6t ja laskeutumiset on suunniteltu tapahtuvan jaloilta. N\u00e4in ollen liitimen lentoonl\u00e4ht\u00f6- ja sakkausnopeus tulee pit\u00e4\u00e4 pienen\u00e4, 20-30 km\/h tiet\u00e4mill\u00e4. T\u00e4m\u00e4 asettaa tiettyj\u00e4 vaatimuksia lentolaitteen suunnittelulle ja rakenteelle, jonka … Continued<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":650,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=\/wp\/v2\/pages\/1321"}],"collection":[{"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1321"}],"version-history":[{"count":1,"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=\/wp\/v2\/pages\/1321\/revisions"}],"predecessor-version":[{"id":1322,"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=\/wp\/v2\/pages\/1321\/revisions\/1322"}],"up":[{"embeddable":true,"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=\/wp\/v2\/pages\/650"}],"wp:attachment":[{"href":"https:\/\/www.urheiluilmailu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/a><\/p>\nEnglish<\/h2>\n
<\/a>The performance of a hang-glider is defined by it’s ability to be foot-launched. Keeping that in mind, the gliders take-off and stall speed should be kept as low as possible, like 20-30 km\/h. This sets limitations to the gliders structure and aerodynamics. The low-speed handling characteristics limit the top speeds. So the best performance glider can reach only slightly over 100 km\/h airspeeds. As in powered hang-gliding the same speed is used as in free-flight, the same performance numbers apply.<\/p>\n<\/p>\n<\/a>The range and flight time of powered gliders vary from one hour to slightly over four hours. The engine consumes approximately 2,5 liters of mixture of 98E gasoline and two-stroke fuel per hour. The fuel tanks are able to hold 5-10 liters of fuel each depending on the tank. The maximum amount of fuel and tanks is limited by the weight limitations of the glider. During four hours, the glider is able to cover rather long distances with its 50-80 km\/h cruise speed.<\/p>\n","protected":false},"excerpt":{"rendered":"