
spallinger ezz. 21

1930kalude avasaanathil paratthiya rund seettukalulla oru swis trainer glyderaanu spallinger ezz. 21. pariseelakar aayi avar valareyadhikam upayogichirunnuvenkilum rund seettukalude vibhaagathil niravadhi puthiya swis deseeya recordukalum sthaapichu.
roopakalppanayum vikasanavum.
1934ll 15-aamm noottaandil aarambhicha jacob spallinger roopakalppana cheytha gull-winged glyderukalude oru parambarayaanu 1938 spallinger ezz. 21. athil 1936leeii spallinger ezz. 18 ulppedunnu, athu aaa varshathe berlin olimbiku gamesil pankedukkukayum swis malsarangalilum deseeya recordukalilum aadhipathyam sthaapikkukayum cheythu. bharameriya, rund seettukalulla ezz. 21-nuu 23 sathamaanam vardhanavu undaayittund, koodaathe ezz. 18-nte cantilever vingil ninnu vyathyasthamayi baahyamaayi braze cheythittundu.
thadi, otta-sparr chirakinte akathe moonnilonnu aakruthiyil chathuraakrithiyilullathum 5° dihedral ullathumaanu. athinappuram, chirakukal trapasoidal muthal vrithaakrithiyilulla agrangal vare dihedral illaathavayaanu. oro aantharika vibhaagavum sparukalil ninnulla diagonal strattukalulla dragg lodukalkkethire aantharikamaayi braze cheythirikkunnu, sekshante puram attathu ninnu fuselage keel vare oru baahya single steel strutt vazhi liftt lodukalkkethire kendramaayi othucherunnu. oro pakuthi chirakum spaarukalkk munnilum munvashathe attatthum plywood kondu pothinjirikkunnu, ithu oru tortion resistant dii-boxes roopappeduthunnu. spaarukalkk pinnil chirakukal thunikondu pothinjirikkunnu, avayude puram bhaagangalil avayude pinbhagangalil bhooribhaagavum ileronukal undu. aadya prototypil thudakkathil airbreakkukal illaayirunnuvenkilum iva pinneedu spaarinte pinbhaagathu akathe vibhaagathin purathaayi gadippichu.
prototypene pinthudarnnu ezz. 21-nte moonnu vakabhedangal undaayirunnu, avayude fuselage gadanakalil pradhaanamaayum vyathyaasamund, ennaal mikka <aii. dii. 2> umm ezz-21echsaayirunnu, allengil <aii. dii. 1> ennariyappedunnu. ivaykku maramkond nirmmicha fuselageukalum, bhaagath oval, plywood skin ennivayundaayirunnu. munnile seett chirakinte munvashathe attathinu munnilum suthaaryavum multy part melappinu keezhilumaanu. pinseettine valayam cheythathum iruvashathum chathuraakrithiyilulla janalukalullathumaaya oru kaaryakshamamaya peedatthil pradhana fuselageinu mukalil chirak uyarthi. thuramukhathe vaathil vazhiyaan praveshanam. fuselage pinbhaagathekku oru cheria chirakilekku churungi, athu oru valia, valanja santulita chukkakal vahikkunnu, pakaram oru pooyint tipp. athinte eathaandu thrikonaakrithiyilulla tailplane pradhaanamaayum rudder keelinte munnilaayirunnu. lifttukal aasoothranam cheythaanu valachathu.
1937-leeii prototype ezz. 21, pilkkaalatthe <aii. dii. 3> (<aii. dii. 2>), <aii. dii. 1> (ezz. 21) ennivaykku welding steel tyoobukalil ninnu roopappetta thunikondu pothinja, bahubhuja vibhaga fuselageukal undaayirunnu. avar avarude irippida krameekaranangalil vyathyaasappettirunnu; s.21-st pole prototypinum arikil seettukal undaayirunnu, ennirunnaalum veethi kuraykkunnathinu athinte seettukal deerghamaayi ambarappichu. s.21h pole s.21m-num tandom seettukal undaayirunnu.
ezz. 21 oru rubber-sprung skiddle pathikkunnu, ithu madhya-cordil ninnu mookkilekku ekadesham munnott athunnu.
pravartthana charithram.
oru parisheelakanenna nilayil valare upayogichirunna aidi1 rund seettukalulla klaas vibhaagangalilum puthiya swis deseeya recordukal sthaapichu. patthu perr swis rajisttaril prathyakshappettu, athilonnu ippozhum rajisttar cheythittundu. praadeshikamaayi nirmmicha sii. vii. vii 6 canguro kooduthal janapriyamaanennu thelinjenkilum rund ulkkashilakal koodi italiyil ezz. 21 gabbiano enna peril licensinu keezhil nirmmichu.