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Author Topic: Serija sovjetskih teških tenkova KV i JS  (Read 53389 times)
 
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BrankoBananko
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« Reply #105 on: July 20, 2020, 04:04:05 pm »

Transformacija KV tenka u IS tenk.

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Experimetalni prototip tenka IS-1 odnosno KV-13 je sledeci korak u razvoju KV/IS serije tenkova posle operacionalnog tenka KV-1s. Redizajniran tenk je bio laksi ali sa mnogo effektivnijim oklopom. Tokom testiranja odrzanih marta 1943 pronadjeno je vise nedostataka i problema. Iako je tenk bio laksi, pritisak na tlo je bilo vece jer je imao samo pet tockova sa svake strane poput T-34. Kupola je bila tesna za posadu i ostale sitne mane. Medjutim Tigar tenk je officijalno ubio projekat kada je Maja 5. 1943 izdan je zahtev da dva prototipa moraju biti naoruzani sa 85mm topovima da bi mogli efektivno unistiti Nemacke teske tenkove. Obruc kupole je bio premali za ugradnju veceg topa. Velike izmene bi drasticno promenile tenk. Iz tih promena nastaje Objekat 237. Dva prototipa imaju veci obruc i vecu kupolu sa razlicitim 85mm topovima. Dodan je sesti tocak. Jedan nosi protuavionski top 52-K tenkovska verzija DT-5 a drugi takodje protuavionski top S-31. U Maju 1943 pocinju radovi na novim prototipovima. Tenkovi su sluzili kao osnova za IS-1 ali su i dalje razvijani sa razlicitim unapredjenjima posle pocetka proizvodnje IS-1. Pa i IS-2. Jedan primerak je prezivio do danas.

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Nacrt preradjenog tela IS-1 tenka, potpisan maja 12 1943 gde je vec utvrdjeno u kojem smeru ce se dalje raditi.

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Nacrt IS tenka sa 85mm D-5T topom pred kraj maja 1943.

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Nacrt IS tenka sa 85mm S-31 topom koji je radjen paralelno sa drugim tenkom. Inicijalno ova verzija je imala naklonost.


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BrankoBananko
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« Reply #106 on: July 20, 2020, 04:26:24 pm »

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Presek odgore na raspored unutrasnjosti

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Bocni presek rasporeda unutrasnjosti IS tenka sa S-31 topom.

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Prvi experimetalni IS tenk jula meseca 1943.

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Pogled od nazad. Oplata auspuha je preuzeta sa T-34 kao i okrugli poklopci za pristup menjacu.



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BrankoBananko
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« Reply #107 on: July 20, 2020, 04:33:23 pm »

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Isti tenk od napred

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Kupola iz bliza gde se jasno vidi blenda topa S-31

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Gornje povrsine kupole su ostale kao na prototipu u ranijim serijskim primercima.

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Mitraljez u telu oznacen strelicom.


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BrankoBananko
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« Reply #108 on: July 20, 2020, 04:39:16 pm »

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Drugi prototip u augustu 1943 koji nije dugo ostao u ovoj formi.

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Isti tenk od nazad

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Test prohodnosti

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Prvi IS sa D-5T topom



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BrankoBananko
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« Reply #109 on: July 20, 2020, 04:44:48 pm »

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Isti tenk od napred

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Isti tenk na testiranju

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Drugi prototip sa dodatnim rezervarima

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Prvi prototip na zimskim testovima


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BrankoBananko
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« Reply #110 on: July 20, 2020, 05:25:27 pm »

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Covek koji je od KV-13 napravio najbolji Sovjetski teski tenk. Gospodin N.F. Shahsmurin. Slikano 1980 godine  ispred prezivelog prototipa.


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Dreadnought
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« Reply #111 on: July 23, 2020, 02:35:27 pm »



Branko, hvala za ove fotke i podatke o IS-1 

Nadam se da imaš nešto slično spremno i za IS-2  Smiley
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BrankoBananko
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« Reply #112 on: July 23, 2020, 03:05:08 pm »

Nema na cemu mada moje zasluge su samo u prevodjenju skracene sustine clanka i opis slika.

IS-2 je u biti poboljsani IS-1 sa modifikovanom kupolom da bi mogao nositi 122mm top. Isti prototipovi IS-1 su korisceni za stvaranje najlakse se prepoznaju po oblogi auspuha koja podseca na oblogu sa T-34.

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Prototip IS-2 sa orginalnom kocnicom trzaja (neznam koji termin se koristi na Srpskom jeziku) muzzle brake. Jos jedan nacin raspoznavanja prototipa od serijskie proizvodnje. Kasnije je i oblik prednje ploce tela promenjen i ta verzija je postala IS-2m.


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kumbor
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« Reply #113 on: July 23, 2020, 07:11:10 pm »



Muzzle brake - gasna kočnica. To je prihvaćen termin u struci, a i popularno.
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BrankoBananko
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« Reply #114 on: July 23, 2020, 08:48:03 pm »



Muzzle brake - gasna kočnica. To je prihvaćen termin u struci, a i popularno.

Hvala!!
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BrankoBananko
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« Reply #115 on: July 31, 2020, 03:21:48 pm »

Nastanak IS-1 je uslovljen odlukom da KV-13 ne zadovoljava vatrenom moci. Po zahtevu tenk je morao imati 85mm. Kao sto smo videli tenk je usao u serijsku proizvodnju, medjutim ispostavilo se da ce IS-1 biti samo prelazna varijanta. Napravljeno je samo 130 vozila. Prosirenje kupole je omogucilo ugradnju veceg topa. A 85mm topovi su bili preko potrebni za proizvodnju T-34/85 i Su-85. T-34/85 je dobio prednost sa 85mm topom S-31 dok je SU-85 dobio D-5T.  Novi top je izabran za IS tenkove i radovi na tenku su poceli prije nego je seriska proizvodnja IS-1 krenula. Prototipovi IS-1 su modifikovani za ugradnju mocnog A-19 topa 122mm.

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A-19 122mm top na M30 vucnoj sasiji



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BrankoBananko
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« Reply #116 on: July 31, 2020, 03:41:33 pm »

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A-19 122mm top je sa jednim pogodkom izbacio kupolu iz lezista i pomerio je za metar. Test na zarobljenom Tigru.

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Nacrt instalacije 122mm topa na IS tenku, potpisan jula 17og 1943 godine.

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Nacrt prve verzije gasne kocnice

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Objekat 240, prototip IS-2


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BrankoBananko
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« Reply #117 on: July 31, 2020, 03:50:54 pm »

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Prototip

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Mapa predjenog puta na kojem su testirana obadva prototipa. Presli su oko 1200km

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Na marsu su se obadva tenka zaglavili u blato, ali su izvlacili jadan drugog.

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Izvlacenje iz blata pomocu balvana


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BrankoBananko
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« Reply #118 on: July 31, 2020, 03:56:26 pm »

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Nacrt nove gasne kocnice

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Gasna kocnica za serijsku proizvodnju

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Na poligonu Gorohovet, oktobar 1943.

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Isti tenk sa novom gasnom kocnicom


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BrankoBananko
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« Reply #119 on: July 31, 2020, 04:13:45 pm »

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Nacrt borbenog rasporeda posade.

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Naredjenje za proizvodnju IS-2 tenka potpisano Oktobra 31og 1943 godine i u njemu stoji da proizvodnja treba poceti u Decembru.

IS-2 je ubedljivo najbolji Sovjetski teski tenk koji je ucestvovao u ratu. Ali Ruski dizajneri rade punom parom i dok je rodjenje IS-2 u toku ne samo da je IS-3 u planu nego je u decebru 1943 izdan zahtev za IS-4.

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Da dobijemo bolju perspektivu, rad na objekatu 701 je zapocet 1943 a dva prototipa su testirana 1944 godine. Kao i IS-3 tenk kasni i ulazi u sluzbu 1946 godine. Neverovatna brzina dizajniranja vrhunskih tenkova govori o uspehu Ruske industrije i stecenog znanja iz prakticnih uslova.


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