THE ADVANCEMENT OF AEROSPACE INDUSTRY & THE REASON BEHIND AMERICA HOLD SUPER POWER
Battle of Gravelines chu 8th August 1588 kum chun Spanish le France teni kidou jeh in ana piendoh e. Armada Spanish kuong chu alien in, agih jong agih in, alet dungjui in angan lheh kit in ahi. Langkhat a English Naval kuong chu neocha ahijeh in agang in, ahehdan jong anuom lheh e.Hijeh chun hiche battle chu English Naval kuong in ana jouvin ahi.Ipi jeh inem itile "Fluid dynamics/mechanics" ahet jeh u ahi.
Armada Spanish in alel jeh chu "drag problem" jeh ahi. Anungkai di tamval jeh a hatjou lou ahin hichu English Naval ho'n ahet jeh uva "drag problem" solve akibawl ule galjona chanlo ahiuve.
(Hinkhoa jong eikai nung ding atam val tiengle losapna ichung'a achu jiy in hijeh a English Naval kuong bang'a eikai nungthei ho apat huidoh di dan kivetchil jing angai e)
"Fluid Dynamics" khang chu ahung kichai ta'n aban in 17th December 1903 (10:35am) chun Wright Brothers teni'n anaum khalou vanleng ahin semdoh lhon in ahi. Asemdoh lhon vang in "Design" lampang ana boi lhon jeh in German Aviator Otto Lilienthal in ana kithopi in ahi. Khutia kithopina apieh vang in lenna/huikong chu hoitah in aleng sawt deh poun ahi. Hijeh chun "Cycle/bicycle" apat patepna(experiment) ana nei lhon in Lift-drag problem chu suhlhapna ananei lhon keu hilouvin vacha lha (bird wings) bang khun lenna chu anasem lhon in ahi. Vacha leng dan khu "warping wings" ahin lenna masa chu hitobang ahi. Tu khonung jouvin hiche "warping wings" chu technical term ah kisei le "Ailerons" a hung kikhel kit ahi. Hiche khang hi "Aviation Age" hung kiti kit ahi.Hiche Ailerons hi vanleng(aeroplane) na tou phaat leh akipei(change roll) theina jeh khu ahi. Hiche hi vanleng lha nung'a um ahi(anuoiya lim hi ve in)
Hiche jouvin 2nd World War ahung um kit in bomb,missiles, lenna jang pum in kidouna ana soh in ahi. Hichun Russia te'n V-2 Rocket(Intercontinental Ballistic Missiles) ahin semdoh kit uvin vannoi ana hot ling leuvin ahi. Hiche goh hilouvin 1957 kum in vanlaijol'a satellite masapen Sputnik 1 Russian te'n ana soldoh uve. Hiche hi "Space Age" hung kipat dan ahi. Hitichun America leh Russia kikah a Cold War ahung um toupeh in "Space Race" tuchan in ache jing peh in ahi. Hiche V-2 rocket ICBM chun adei dei namun akap thei keu hilouva sound speed (343m/s) sang'a lethum a hatjo lengthei ahi. Hiche V-2 rockets hi sangthum siemdoh ahin;mihem hiche jeh a thi hi sangsomko val ahi. Hiche keu hilouva London leh Antwerp mun jong chu hiche rocket hin ana suh set ahi.
Ve le chun masang'a rocket muh ho jumpet(pointed) ahi. Jumpet a kibawl luona chu aleng hatna di ahi. Aleng hatval jeh khun meikuong doh ji ahi{anuoiya fig (a) tobang jeh ahi}.Hiche meikuong hi limitation/problem khat ahi.
Hiche limitation hi Henry Jillian Allen in solve ana bawl in ahi. Technical term in kisei le hiche pointed(Slent reentry body) chu "Bluent shape" a ahin kheldoh ahi[achung a fig (b) chu ve'n].Tun rocket /missiles ho khu ve le chun pointed thet um talou ahi. Hiche hi Aerodynamics jeh ahi. Na nahkuo, na tahsa, gari jouse leh thilkisem jouse hi Aerodynamics shape ngen ahi. Hiche Aerodynamics secret hi 1951 apat 1958 chan USA in aphongdoh lou ahi. Henry natoh hi ki phongdoh le eisang a hatjo um ding tijat jeh ahi. Tun ve leu hen USA hi Aerospace technology lang'a vannoi a pha um talou ahi.Hiche jeh a hi "Super Power" atuh jing thei u ahi.
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