Xov xwm thiab Society, Txiv neej tej teeb meem
Nyoob hoom qav taub yoov nyob li cas altitude? Maximum altitude nyoob hoom qav taub
Rau nyoob hoom qav taub (nyoob hoom qav taub), lub siab tshaj plaws qhov chaw siab tshaj yog txiav txim los ntawm ob "qab nthab": zoo li qub thiab dynamic. Nyob rau hauv thawj cov ntaub ntawv peb tham txog ib tug ntsug lifting tsuas ntawm lub rotor. Qhov no tus nqi yog feem ntau tsawg. Nyob rau hauv lub caij nyoog kawg no cov ntaub ntawv, lifting yog ua thiab los ntawm txoj kev screws, thiab vim cov kev ceev ntawm lub linear zog. Nyob rau hauv xws li ib tug cov ntaub ntawv nws yog ua tau rau sawv saum toj no.
Nyoob hoom qav taub: Nta
Nyob rau hauv aircraft nqa quab yuam generated vim cov kev ceev thiab tis configuration. Txawv heev nyoob hoom qav taub ntawm lub nce. Maximum altitude tsis tshua tshaj 3000-3500 m. Yuav kom txhawb kev siv ntawm lub hwj chim nroj tsuag thiab rotor. Ceev yog tsis piv nrog lub aircraft, tab sis lub nyoob hoom qav taub tau yooj yim hle tsis muaj ib tug mus dhia, zaum nyob rau hauv ib tug npaj tso mam li pawv, yuj nyob rau hauv qhov chaw, tsiv mus nyob toj.
Raws li cov kev qhia ntawv, pilots tsis tig tawm lub cav thaum lub sij hawm tsaws ntawm high-altitude qhov chaw ntawm 3,000 meters. Tej lub lag luam rau feem ntau ntawm helicopters nyob rau hauv lub qub hom yog tau mus txog 4.5 kis lus mev. Saum toj no no pib, cov huab cua yuav sib thiab cov kiv cua tuaj yuav tsum raug muab rau limiting lub kaum sab xis ntawm nres. Qhov no tej zaum yuav ua rau muaj xwm ceev.
hom
Rau ib lub hom phiaj kev txiav txim ntawm cov nuj nqis yuav tsum muab sau ua ke, hom nyoob hoom qav taub. Maximum altitude yuav tau teem caij rau lub plaub subclasses ntawm helicopters, rau cov uas lawv muab qhia lub International Aeronautical Federation (Fai), nyob rau hauv raws li tsim nta.
Tsis tas li ntawd helicopters, gyroplanes tsis tau txiav txim siab nyob rau hauv uas cov thawj rotor tsis hloov thiab xwb lub qaij lub yog siv los tsim nqa. Lwm subclass - tiltrotor. Cov screws ua ke nrog rau cov tshuab thaum lub sij hawm takeoff txojkev upwards thiab thaum lub sij hawm kab rov tav davhlau tig thiab ua raws li aircraft. Nyias cais subclass rotorcraft, nyob rau hauv uas rau ua ib tug lifting quab yuam tshaj thawj rotor, thiab siv aerodynamic dav hlau sab rau lub vaj tse (tis).
Tsis tau tag nrho cov helicopters yog muab faib ua tsib pawg, nyob ntawm seb qhov muab-off yuag: 500 kg rau 4500 kg. Nyob rau hauv tas li ntawd, txiav txim seb lub hom lo lus uas peb: civil los yog tub rog. Ntawm lawv, tus neeg subclasses, nyob ntawm seb cov kev daim ntawv thov yuav tsum tso tawm: tsheb, multi-purpose, nrhiav thiab cawm, firefighting, ua liaj ua teb, helicopters, cranes thiab lwm tus neeg.
Nyoob hoom qav taub: nyiaj pab ntau tshaj altitude
Ob lub zoo li qub thiab dynamic "ceilings" yog marginal nuj nqis. Txwv yog yuam kom txhais tau rau ib thaj tsam tshaj uas yuav ua tau kom muaj kev cuam tshuam ntawm cov airflow los ntawm lub rotor tuaj. Ntseeg rotorcraft khaws cia nyob rau hauv cov huab cua ntawm altitudes mus txog 4500 m nrog lub ntsiab txhais ntawm lub siab tshaj plaws "qab nthab" nyob rau hauv tus neeg cov cav tov kom txog li 6 km.
Qhov siab tshaj plaws qhov siab ntawm lub nyoob hoom qav taub sib ntaus, kaw ib txog cov ntaub ntawv ntawm 12442 meters. Tsim muaj nws Fabkis balloonist Zhan Bule. Nws Aerospatiale «las mas», xa mus rau lub subclass "helicopters", yog tau kov yeej lub 12-kilometer kab nyob rau hauv 1972. Lub davhlau yuav yuav tuag taus, vim hais tias lub qhov siab qhov twg qhov kub thiab txias rau hauv qab no - 60 ° C, lub cav stalled. Tus tsav yuav tsum tau teem lwm cov ntaub ntawv - lub siab tshaj plaws yuav txo tau nyob rau hauv lub high-sawv hom autorotation ntsiab rotor.
Nyoob hoom qav taub "Shark"
Adopting dual rotor tshuab nrog ib tug coaxial arrangement ntawm lawv - Ka-50 - muaj ib tug zoo li qub qab nthab, tej yam kev yam ntxwv nyob rau theem ntawm 4000 meters. Qhov siab tshaj plaws qhov chaw siab tshaj ntawm lub nyoob hoom qav taub "Shark" nyob rau hauv lub puab yuav ua tau mus 5500 meters. Davhlau ceev Cruising - 260 km / h, sab - 80 km / h, rov qab - mus txog rau 90 km / h. Lub qhov siab ntawm cov sau tau nyob rau hauv lub hom ntawm 28 m / s. Tau ua ib tug tag nrho "voj lub voj", Txawm tias qhov no maneuver yog txaus ntshai vim lub high yuav whipping screws.
Kev sib piv, lub siab tshaj plaws qhov chaw siab tshaj ntawm lub Mi-26 yog 6500 m, thaum lub sij hawm Mi-28 -. 5800 m US Apache AH-64 yuav sawv mus rau 6400 meters modernized Ka-52 "Nab qa dej", raws li zoo raws li lub "Shark". ya nyob rau ntawm ib qhov chaw siab tshaj ntawm 5700 m.
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