
chandell

pailat 180 digri thiriyal oru kayattavumaayi samyojippikkunna oru vimana niyanthrana thanthramaan chandell.
pala raajyangalilum vaanijya vimana certificat labhikkunnathin ithu ippol aavasyamaanu. amerikkayile federal eviyeshan administreshanu atharam pariseelanam aavasyamaanu.
chandell" (mezhukuthiri ennathinte franch vaakk) oru krithyamaaya vimana niyanthrana thanthramaan, karsanamaayi oru aerobatic, dogfiting allengil eriyal combatt maanuvar ennu parayaathe, ennirunnaalum 1942 ll puthiya giniyayil tynan eyar groupile japanese seero pailattumaar ithu vijayakaramaayi upayogichu. 180 digri thalamaattatthiloode sthiramaaya thiriviloode (saadhaaranayaayi secondil digriyil prakadippikkappedunnu) kuranja radius climbing teenn nadathumbol vimaanathe niyanthrikkunnathil pailattinte praaveenyam kaanikkunnathin roopakalppana cheytha oru thanthramaanith, aerodynamic staalinaduthulla "slow-flaitt" bharanathil airspeedil puthiya reciprocal headingle athunnu. puthiya thalakkett sthaapichathinushesham vimanam "slow-flaittil" paratthaam, allengil vyayaamathinteyo parishodhanayudeyo uddeshyangalkkanusaricha saadhaarana cruis flaitt punaraarambhikkam. certification aavashyathinaayi thanthrangal engane paratthanam ennathinte drishya thithreekaranatthinaayi rekhaachithram kaanuka.
vimaanathinte saadhaarana cruising shreniyil munkootty nischayicha airspeedil pailat oru chandellilekku praveshikkunnu. thanthram aarambhikkunnathin pailat aadyam vimaanathe niyanthranangalumaayi (ileronukal) aavasyamulla dishayilekku uruttukayum vegathil ennaal sugamamayi oru idatharam baank teenn sthaapikkukayum cheiyunnu. mikka cheria vimaanangalilum (100-175 kiyaasinte cruising vegatha) eee theeram ekadesham 30° muthal 40° vareyayirikkum. ithu vimaanathinte oru thiriv bankilekku aarambikkum. oresamayam, poornna vaidyuthi prayogikkukayum niyanthranangalode (empenejile elivettarukal) sugamamaya pitch upp aarambikkukayum cheiyunnu. thalakkett maattatthinte aadya 90° samayat baankinte koonn sthiramaayi thudarunnu, athesamayam pitch koonn kramanugathamaayi vardhikkunnu. thalamaattatthil 90° pooyintil, vimaanathin paramavadhi pitch angle undu (ithu vimaanathinte level staal vegathayile aakramanathinte nirnaayaka koninode aduthaayirikkanam). thalakkett maattatthinte randaam 90° samayat, pitch angle sthiramaayi pidikkappedunnu, athesamayam baank angle eluppathil baankinte 0° lake kurayunnu, teninte avasaanam krithyamaayi reciprocal headingle (maanuvarinte thudakkathil thalayil ninnu 180° akale), airspeed staal vegathaykku aduthu. thanthratthinte avasana bhaagathilo veendedukkal samayatho puthiya thalakkettil saadhaarana cruising vegatha punasthaapikkaan enchin power upayogikkumbozho vimaanathin uyaram nashtappedaruthu. baank angle kurayunnathum chaandillinte randaam pakuthiyil vaayuvinte vegatha kurayunnathum sthiramaaya teenn rettu nilanirtthum. thanthrathiludaneelam sariyaaya alavil chukkani prayogichukondu teenn ekopippikkendathundu.
praayogika kazhchappadil, oru vimaanathe kuranja teenn radiasinullil tirikkaan chandell upayogikkaam. athinaal andhamaya thaazhvarayilo malayidukkiloo kazhiyunna cheria vimaanangalude pailattumaarkk ithu upayogapradamaaya oru thanthramaan. athinaal, avarude kuranja oorjjamulla vimaanathile aadyakaala yudhavimaana pailattumaarkk kayarumbol vegathil pinthudarunna aakramanakaariyilekk thiriyunnath (ithu tiriyum kayaralum kaaranam oru tracking thokku kooduthal budhimuttaakkum) vimaanathe thadayaathe, allengil tiriyunna shatruvino allengil mattoru thalayil parakkunna shatruvino nere vegathil akramanam nadatthaan svayam nilakolluka ennivayum upayogapradamaayirunnu.
onnaam lokamahaayudhasamayathe franch vimaanakkambanikal ithine "monder enn chandell" allengil "lambamaayi kayaruka" ennaanu visheshippichathu. ennirunnaalum, pailat flaitt testing aavasyangalkkaayi ithinu kooduthal karsanamaaya nirvachanam labhichu. aadyakaala yudhathil, oru pailat poornna throttil paramavadhi praayogika vegatha kaivarikkanum thudarnnu yuddha saahacharyathil aavashyamaaya thalamaattathinu aavashyamaaya konil vimanam uruttanum lakshyamidunnu. thiriv aarambhikkumbol, aavasyamulla alavino thalakkett maattunnathino anusarichu mookk kooduthal uyarnnuvarunnu. mukalil vivarichathupole, aavasyamulla pitch aamgilum yaav niyantrikkaan aavashyamaaya rudderilum thiriv purogamikkunnu, vaayuvinte vegatha kurayunnu, thudarnnu oru aerodynamic staal ozhivaakkikkond, puthiya aavasyamulla thalakkettil nere uruttanum level cheyyaanum chirakukal level cheiyunnu. eee ghattathil, pailattin kooduthal shakthiyundenkil, athu vaayusanjaaram veendedukkaan cherkkaam, allengil athe phalam nedunnathinaayi vimaanathinte mookk kurachukoodi thazhaan anuvadikkaam (vaanijya vimana parisodhanayile thanthrangalkkaayi vimaanathinte mookk thaazhthunnathu anuvadaneeyamalla). vyomayudhathil, akramanathinaayi vimanam sthaapikkunnathinum shathruvine ozhivakkunnathinaayi prathirodhikkunnathinum chandell thanthrangal upayogichu.

