Kviz

[ML]

Čudi me da niko ne komentariše samo pitanje, na slici je prototip, a to niko ne komentariše?

[Trifko]

Највећа мана је била слабија погодност за масовну производњу. Елиптична крила су нпр. сложенија. Ме-109 се могао производити брже и јефтиније.

Из HE-112 је касније развијен HE-100D, далеко бољи и веома другачији авион, али било је касно. Пар HE-100D је касније продато Јапану, који су од њега развили  Kawasaki КI-61 Hien (Tony), једини великосеријски јапански ловац са линијским мотором.

Malo mi je čudno za švabe da mu je mana bila u složenosti proizvodnje...

[kumbor]

Svako složeno oružje može biti manje ili više teško ili lakše za proizvodnju u velikoj seriji. Kako god se okrene, npr. PzKpfw VI - Tiger bio je više puta skuplji i komplikovaniji tenk od ruskog KV ili IS, pa ih je zato napravljeno daleko manje. Najveća mana jugoslovenskog IK-3 bila je takođe komplikovana gradnja. ME-109 napravljen je beše u nekih 30.000 primeraka 1936-1945. i bio je veoma "tehnologičan" - pogodan za proizvodnju u ogromnom broju i jeftiniji od HE-112. E sad kako i za koliko, nemam pojma, ali tako kaže William Green, a on je  nesumnjivi autoritet za istoriju avijacije.

[ML]

Čudi me da niko ne komentariše samo pitanje, na slici je prototip, a to niko ne komentariše?

Izgleda da sam nevidljiv, fantastična kultura komuniciranja....

[kumbor]

Čudi me da niko ne komentariše samo pitanje, na slici je prototip, a to niko ne komentariše?

Izgleda da sam nevidljiv, fantastična kultura komuniciranja....

Nisam obratio pažnju. HE-112 napravljen je u malom broju primeraka, nekoliko desetina valjda. Nemačka je htela na nekoliko strana da uvali i licencu, ali niko nije prihvatio. Nije loše što je u pitanju prototip - versuchs entwicklung flugzeug, ipak je to važan avion koji pokazuje munjevit razvoj avijacije u godinama pred WWII. "Pregazio" ga je avion konkurentske firme, donevši slavu Willi Messerschmittu. Možda je tajna u Willievom prezimenu, tj. možda je dobro pravio i noževe.

[proxy1969]

OK idemo dalje, što je ovo ?

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[vathra]

Smith gun
https://en.wikipedia.org/wiki/Smith_Gun

[proxy1969]

Smith gun
https://en.wikipedia.org/wiki/Smith_Gun

Točan odgovor, izvoli dalje..

LP

[kumbor]

Smith gun
https://en.wikipedia.org/wiki/Smith_Gun

Jedno od oružja koje je bilo opasnije za poslužioce nego za neprijatelja!

[vathra]

Које оруђе је на слици?
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[ML]

 120/50 V2 Finski nabavljen od rusa.

120/50 V2
(120 mm coastal gun with 50 caliber barrel, model Vickers on double gun mount)
Calibre:
120 mm (bagged ammunition, no cartridge case)
Barrel length:
600 cm aka L/50
Weight in action:
5700 kg (single gun) / 17382 kg (double gun) (*)
Rate of fire:
8 shots/min (max), 5 shots/min (practical) (**)
Muzzle velocity:
790 - 915 m/sec
Traverse:
360 degrees
Elevation:
Old single mount: - 10 degrees, + 20 degrees
New single mount: - 10 degrees, + 30 degrees
Double gun mount: - 10 degrees, + 30 degrees
Max. range:18.5 km / 16.5 km (***)
Ammunition weight:23.0 kg (HE)Ammunition types:HE, APHE, star shell
Country of origin:Great Britain / Russia
Finnish use: About 10 guns taken to Finnish use. Early on they were used on ships, but after Winter War they were transferred to coastal artillery, which used them until 1950's.

During Japanese – Russian War of 1904 – 1905 Russia had ordered new artillery pieces intended as heavy artillery from Vickers, Sons and Maxim. Since the particular guns were delivered too late to see action in that war, instead of originally intended purpose they ended up being used as naval guns and coastal guns. Among other things, they were used as secondary armament of Gangut class battleships and armored cruiser Rurik. Manufacturing license was acquired and Obuhov steel works manufactured structurally strengthened version of this gun in 1912 – 1915. Once Obuhov had started their production the earlier Vickers-manufactured guns got named as "model 1", while guns manufactured by Obuhov got named as "model 2". The most notable practical difference between these two versions was maximum elevation, with "model 1" having maximum elevation of 20 degrees and "model 2" having maximum elevation of 30 degrees. Later the Soviets introduced modifications, which increased maximum elevation of those guns remaining in their use to 45 degrees to increase maximum range.

In many ways these guns were rather similar to other heavy coastal guns of the era – they were installed on pedestal mount, had screw breech and recoil system under the gun barrel. What was somewhat unusual was that the gun still used bagged ammunition, hence had separate projectile, bags containing propellant (gunpowder) and primer. Another unusual feature was that the gun was issued both with single-gun mount and double-gun mount, which had two guns installed side by side on the same gun mount.

Year 1918 Russian military left behind about ten guns, which were taken to use of Finnish Armed Forces. Early on they saw quite a bit of use on ships of Finnish Navy, but proved less than ideal and after Winter War remaining guns were transferred to coastal artillery. Finnish military referred the two versions of this gun as 120/50 V (vanha) and 120/50 V (uusi) with vanha translating simply as old and uusi translating as new. During Finnish – Soviet Winter War (1939 – 1940) they were issued to ice breakers Tarmo, Sampo and Voima, but with little success. 120/50 V proved too heavy, slow to lay and probably at least partly due to bagged ammunition at least equally slow to re-load. At the same time their maximum range was found to be relatively short and recoil energy transferring to ship too strong. The double-gun mount proved to have additional problem, which made shooting with the both guns at the same time impossible, since the recoil of first gun going off shook the gun to such extent, that it ruined accuracy of the second gun going off right after it. Due to all these issues, 120/50 V was found to be unsuitable for naval use. Hence after Winter War they were transferred to coastal artillery, which issued them to Salpa-line in area of Lake Saimaa and later during Continuation War (1941 – 1944) to coastal forts on Lake Laatokka / Ladoga.

[ML]

promjena odgovora:
Ipak je ovaj:
127 mm Dual AA Gun
http://www.tarawaontheweb.org/dualgun.htm

[vathra]

Други одговор је тачан.
Јапански двоцевни ПА топ од 5”, кориштен на ратним бродовима, али и на острвима.

Изволите даље.

[ML]

Hvala!
Traži se o kom brodu se radi.
Tokom tridesetih godina prošlog stoljeća pojavili su se problemi sa tankerima, pogotovo u djelovima sa tankovima za prevoz tereta. Kako se teret vozio samo u jednom pravcu, u drugom pravcu se je krcala balastna morska voda. To je dovodilo do korozije i bržeg staranja srednjeg dijela broda kome je vijek bio od 12-15 godina, što čini polovicu životnog vijeka ostalog dijela broda.
Vlasnici brodova su se odlučivali za novu soluciju, koja je bila pola jeftinija od nabavke novog broda, zamjena srednjeg dotrajalog dijela novim. Prva takva operacija je izvršena na brodu na koji se odnosi pitanje 1930g. U nešto više od mjesec dana brod je ponovo bio spreman za vožnju. Normalno da je srednji dio unaprjed pripremljen.
Brod je uvučen u dok, izrezan je na tri dijela, posle potapanja doka izvučeni su srednji i pramčani dio dok je krmeni ostao na podkladama. Potom je uveden novi srednji dio, pa za njim pramčani... [ Attachment: You are not allowed to view attachments ]

[ML]

Brod  je imao veoma interesantnu istoriju. Doživjeo je dva rata. Zadnji nije preživjeo.
U prvom SR je brod koji je plovio van konvoja napadnut I torpedovan od podmornice, manevrom i  bacanjem dubinskih bombi se spasio od nadaljnjih napada. Na krmenom dijelu je imao montiran I top. Kako je pogođen u središnji dio, mašina je ostala netaknuta, pa se bez problema dovukao do luke. Bio je u balastu.
Početkom drugog svjetskog rata 1939 godine opet je napadnut od podmornice, koja je ispalila torpedo koji je eksplodirao. Podmornica je javila u bazu da je potopila brod, a u stvari torpedo je eksplodirao u blizini broad, bez ikakvog rezultata.
Treći napad podmornice je bio sudbonosan za brod. Bio je pogođen sa dva torpedo G7, a pošto je bio pun  zapaljivog tereta brzo ga je dohvato požar I ostao je plutati još dva dana kao ploveća buktinja.