Bozo13
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« on: January 09, 2015, 06:50:42 pm » |
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Bell 412 je višenamjenski helikopter kojeg proizvodi Bell Helicopter. Radi se o daljnjem razvoju modela Bell 212, od kojeg se ponajviše razlikuje kompozitnim četverokrakim glavnim rotorom. [ Attachment: You are not allowed to view attachments ] RazvojRazvoj ovog modela započeo je kasnih 1970-ih, tako što su dva Bell 212 prerađena u prototipe modela 412. Unaprijeđeni četverokračni glavni rotor s manjim promjerom diska zamijenio je dvokračni glavni rotor modela 212. Prvi let prototipa Bell 412 zbio se u kolovozu 1979. godine. Inicijalni model certificiran je u siječnju 1981., a komercijalna isporuka zbila se istog mjeseca. Nakon modela 412 uslijedila je inačica 412SP (Special Performance) s većim kapacitetom goriva, većom maksimalnom težinom uzlijetanja i većom mogućnošću za razmještaj sjedala. 1991. godine u proizvodnju je ušla inačica 412HP (High Performance) s poboljšanim prijenosom koja je zamijenila inačicu SP. Trenutačna proizvodna inačica, 412EP (Enhanced Performance), opremljena je s dvostrukim digitalnim automatskim upravljačkim sustavom. Proizvedeno je preko 700 komada modela 412 (uključujući 260 koje je proizvela AgustaWestland) i koji su u službi. Slovenska vojska koristi ukupno 8 komada helikoptera Bell 412, od toga 1 u verziji Bell 412 SP, 2 u verziji Bell 412 HP i 5 u verziji Bell 412 EP. Posadu sačinjavaju dva pilota, i tehnik letalec. Podatci| Motor | 2x Pratt & Whitney PT6T-3D | | Snaga | 2x 900 HP | | Največa brzina | 259 km/h | | Dolet | 745 km | | Trajanje leta | 4 h | | Max visina leta | 5359 m | | Max visina leddenja sa efektom zemlje | 3109 m | | Max visina leddenja bez efekta zemlje | 1585 m | | Premer rotora | 14 m | | Broj lopatica glavnog rotora | 4 | | Dužina sa rotorom | 17,1 m | | Dužina | 12,66 m | | Visina | 3,7 m | | Posada | 3 | | Putnici | 11 | | masa praznog helikoptera | 2900 kg | | Max masa poletanja sa vanjskim tovorom | 5398 kg | | Koristna masa tovora | 2484 kg | | Max masa vanjskog tovara | 2041 kg | | Max masa tereta za vanjsko elektro-hidraulični dizalicu | 272 kg / 75 m | | | | | Naoružanje | | | Mitraljez MAG 7,62 mm | 1380 metaka | | Lanser LAU-7H 70 mm | 7 raket | | | | | Dodatna oprema | Kuka za vanjski tovar | | sistem za samozaštitu | | Vreča za gašenje požara (1950 l vode) |
U SV je za održavanje Bell 412 sledeči ciklus: Planirano održavanje| Pregled konstrukcije na | 100 sati 1 godišnji pregled | | 350 sati / 2 godišnji pregled | | 500 sati / 3 godišnji pregled | | 3000 sati /5 godišnji pregled | | 2500 sati specialni pregled konstrukcije (generalni remont nekih komponenti) | | Pregled avionike | Godišnje / po potrebi | | Pregled komunikacije | Godišnje / po potrebi | | Pregled motora | 150 sati | | 300 sati | | 600 sati | | 900 sati | | 1200 sati (zamena rotirajučih delova, generalni remont nekih komponenti) |
Neplanirano održavanje (sklop/razlog):| Pregled konstrukcije | tvrdo sletanje | | iznenadna ubrzanja glavnog / repnog rotora | | iznenadna zaustavljanja glavnog / repnog rotora | | previsoki okretaji rotora | | previsoko opterečenje rotora | | udar groma | | Pregled motora | tvrdo sletanje | | iznenadna ubrzanja glavnog / repnog rotora | | iznenadna zaustavljanja glavnog / repnog rotora | | previsoki okretaji rotora | | previsoko opterečenje rotora | | udar groma | | upad predmeta u motor | | visoka temperatura motora | | prevelika potrošnja ola | | previsoki okretaji motora |
Zanimljiva shema održavanja, od ovuđenja u upotrebu, do normalnog ciklusa rada i vreme iztrošenja materijala. [ Attachment: You are not allowed to view attachments ] Održavanje BEll 412 u sastavu SV vrši LETEHE (153. Letalskotehnična eskadrilja). Izvor: http://hr.wikipedia.org/http://www.slovenskavojska.si/Tehnična dokumentacija i diplomski radovi |
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Bozo13
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« Reply #1 on: January 09, 2015, 06:53:46 pm » |
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I još malo slika iz Aero mitinga u Divači, 02.06.2013
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Bozo13
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« Reply #2 on: January 09, 2015, 06:55:09 pm » |
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Bozo13
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« Reply #3 on: January 09, 2015, 06:56:41 pm » |
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Bozo13
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« Reply #4 on: January 09, 2015, 06:57:30 pm » |
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Bozo13
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« Reply #5 on: January 10, 2015, 02:24:34 pm » |
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Bozo13
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« Reply #6 on: January 10, 2015, 02:25:27 pm » |
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Bozo13
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« Reply #7 on: January 10, 2015, 02:26:23 pm » |
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Adler
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« Reply #8 on: January 10, 2015, 02:57:53 pm » |
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Imaš li koju iz vremena dok su nosili znak SV umesto rondele?
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Bozo13
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« Reply #9 on: January 10, 2015, 03:24:31 pm » |
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Trebam da prelistam starije brojeve Slovenske Vojske ili Obrambe. NA HD nemamam ništa, morsam još pronalči slike iz 1994 iz Cerkelj.
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MOTORISTA
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« Reply #10 on: January 10, 2015, 04:00:25 pm » |
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Bozo13
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« Reply #11 on: January 10, 2015, 04:24:17 pm » |
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Bozo13
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« Reply #12 on: January 10, 2015, 04:25:43 pm » |
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Bozo13
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« Reply #13 on: January 10, 2015, 04:26:30 pm » |
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Adler
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« Reply #14 on: January 10, 2015, 05:47:05 pm » |
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Нађох ову са ознаком у боји, а касније је била и у верзији са нижом уочљивошћу, као оне на тенковима и возилима.
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