von_Lipstig 3 Report post Posted June 8, 2016 a) Are you saying that the dispersion issue was because the low barrel life gradually degraded the performance? It may have been a factor, but I don't think it was the major cause for the phenomenon. The Mark 7 fired an AP shell Mark 8 at a muzzle velocity that at average was around 740 mps, roughly 760 at most. Firing the HC Mark 17, the muzzle velocity went up to 800 mps, 820 at most. And the Italian gun had that range with a maximum elevation of 36°. During trials, a gun at 45° fired an AP shell at 46'280 m, and an HE one at 48'270. >dispersion issue Barrel life,while also being a factor, actually degraded performance only after shooting barrel fully(and not swapping liners before next engagement) So no, just small project misconception >guns UK 16/45 mk1 797m/s 36,3km/40 16/45 mk2/3 757m/s 37km/40 15/42 mk1 749m/s 30.6km/30 US 16/46 mk8/0 768m/s 32km/30 18/47 mkA/O 731.5m/s 39,7km/40 JP 46cm/45 Type94 780m/s 42km/45 41cm/45 Type3 780m/s 38km/~30 GER 40cm/52 SKC/34 810m/s 38cm/52 SKC/34 820m/s 35,5km/30 FR 380mm/45 M1935 830m/s 41,7km/35 ITA 381mm/50 Ansaldo-34 850m/s 42,8km/36 AP 885kg 44,6km/35 HE 824kg USSR 406mm/50 B-37 830m/s 45,5km/45 AP 1108kg 870m/s 49,8km/45 AP (mod) and for teh lulz 368mm/50 1254m/s 88,9km/50 220/368mm APDS 142kg Quote Share this post Link to post Share on other sites
Historynerd 1 Report post Posted June 8, 2016 >guns UK 16/45 mk1 797m/s 36,3km/40 16/45 mk2/3 757m/s 37km/40 15/42 mk1 749m/s 30.6km/30 US 16/46 mk8/0 768m/s 32km/30 18/47 mkA/O 731.5m/s 39,7km/40 JP 46cm/45 Type94 780m/s 42km/45 41cm/45 Type3 780m/s 38km/~30 GER 40cm/52 SKC/34 810m/s 38cm/52 SKC/34 820m/s 35,5km/30 FR 380mm/45 M1935 830m/s 41,7km/35 ITA 381mm/50 Ansaldo-34 850m/s 42,8km/36 AP 885kg 44,6km/35 HE 824kg USSR 406mm/50 B-37 830m/s 45,5km/45 AP 1108kg 870m/s 49,8km/45 AP (mod) and for teh lulz 368mm/50 1254m/s 88,9km/50 220/368mm APDS 142kg Sorry, I thought you were referring to the American Mark 7 gun; I had not read carefully. Anyway, the Soviet 406 mm gun gives an idea, but its results were uneven. In some respects, the Soviet industrial base was not up to the task. Also, my point stands, that the Italian gun had excellent range even though its maximum elevation was rather small. It's interesting to note that the idea of equipping the new Italian battleships with 381 mm, instead of going to the 406 mm limit, was followed through because going for the biggest caliber would have meant longer times and bigger costs; also, the Italian industry already had experience with the 15-inch, as it had built the guns for the never completed Francesco Caracciolo-class battleships. Also, the Italian top brass' opinion was that the Model 1934 was good enough to be a match for 406 mm guns; so, it would have been sufficient even against the Lion-class, if they had made an appearance in the Mediterranean. And they also thought that it was superior to the 14-inch Mark 7 of the King George V-class. Quote Share this post Link to post Share on other sites
von_Lipstig 3 Report post Posted June 8, 2016 Sorry, I thought you were referring to the American Mark 7 gun; I had not read carefully. Anyway, the Soviet 406 mm gun gives an idea, but its results were uneven. In some respects, the Soviet industrial base was not up to the task. Also, my point stands, that the Italian gun had excellent range even though its maximum elevation was rather small. FYI, Soviet industry managed all 406mm guns production/maint with no sweat. On the other hand, 130mm, 37mm and ships is another(and very sadly in some parts) matter. Quote Share this post Link to post Share on other sites
Historynerd 1 Report post Posted June 8, 2016 FYI, Soviet industry managed all 406mm guns production/maint with no sweat. On the other hand, 130mm, 37mm and ships is another(and very sadly in some parts) matter. I may have exaggerated- However, on NavWeaps it says that the results were uneven also because of the poor quality of the shells and the propellant. And the Italian example shows that building guns is by itself no guarantee that they'll perform as well as they could. Quote Share this post Link to post Share on other sites
Legate of Mineta 0 Report post Posted June 8, 2016 Love this discussion. Oh, Historynerd- above, I was making a joke, not actual commentary on the weapon. Quote Share this post Link to post Share on other sites
von_Lipstig 3 Report post Posted June 8, 2016 I may have exaggerated- However, on NavWeaps it says that the results were uneven also because of the poor quality of the shells and the propellant. And the Italian example shows that building guns is by itself no guarantee that they'll perform as well as they could. >NavWeaps Results were uneven,yes, but in... '39. In '40 (after some quality control) dispersion was fixed down to planned level. Quote Share this post Link to post Share on other sites
Historynerd 1 Report post Posted June 8, 2016 Love this discussion. Oh, Historynerd- above, I was making a joke, not actual commentary on the weapon. Oh, sorry. I hadn't understood. >NavWeaps Results were uneven,yes, but in... '39. In '40 (after some quality control) dispersion was fixed down to planned level. Very well, if you say so, I have no reason to believe otherwise. Quote Share this post Link to post Share on other sites
Wellington99 29 Report post Posted June 10, 2016 Just found this today. No sound but very interesting to find archive film. Covers multiple ships including Ark Royal, Nelson, and shows bits of sailor training I also found this German film that includes the Ark Royal (though it's more likely the Furious or Courageous) and Stukas dive bombing Quote Share this post Link to post Share on other sites
Legate of Mineta 0 Report post Posted June 10, 2016 W99' Just in time for a certain Interview, which I believe is to be published shortly! Quote Share this post Link to post Share on other sites
Wellington99 29 Report post Posted June 10, 2016 W99' Just in time for a certain Interview, which I believe is to be published shortly! I was gonna ask in the general questions if you guys have a set time to publish the interviews so I don't have to keep refreshing the kickstarter page every 5 minutes XP Quote Share this post Link to post Share on other sites
Wellington99 29 Report post Posted June 10, 2016 Also happened to find this: Quote Share this post Link to post Share on other sites
Legate of Mineta 0 Report post Posted June 10, 2016 W99; No, not set times- just usually on Fridays. The Barham explosion is well known, and what's even more unfortunate is the large group of sailors still on the hull prior to the explosion. ;( Quote Share this post Link to post Share on other sites
Wellington99 29 Report post Posted June 10, 2016 W99; No, not set times- just usually on Fridays. The Barham explosion is well known, and what's even more unfortunate is the large group of sailors still on the hull prior to the explosion. ;( It's surreal watching it, as you can see the sailors on the hull trying to jump off before she exploded. If it's something that can be mentioned, is there a chance that she will enter VB at some point? Quote Share this post Link to post Share on other sites
Legate of Mineta 0 Report post Posted June 10, 2016 W99; I can't comment on any particular ship, of course, but there's always a chance: she was in commission in '39. Quote Share this post Link to post Share on other sites
Wellington99 29 Report post Posted June 14, 2016 While looking up anything on Fire Control to help Nel, I came across this: It's so entertaining for me to see all these mechanics in work Quote Share this post Link to post Share on other sites
Ninjapacman 40 Report post Posted June 22, 2016 I was doing research for... something that will be revealed soon. I found these two instructional videos on american fire-control computers. Enjoy. Quote Share this post Link to post Share on other sites
Panay's Ghost 19 Report post Posted July 2, 2016 Don't know about Youtube, but I found this on a Radiolab Podcast: http://www.radiolab.org/story/bigger-bacon/ https://news.google.com/newspapers?nid=1300&dat=19460408&id=9r1VAAAAIBAJ&sjid=NpcDAAAAIBAJ&pg=1214,499355&hl=en So when can I get my shrimp map? Quote Share this post Link to post Share on other sites
RockyArby 16 Report post Posted July 16, 2016 Found this about the US Coast Guard during WW2. The Coast Guard has actually been in the war since '39. Quote Share this post Link to post Share on other sites
freespace2dotcom 1,029 Report post Posted July 17, 2016 A b29 named doc flew for the first time in 60 years today! https://youtu.be/VNckztvXU3I?t=1h46m30s Quote Share this post Link to post Share on other sites
Legate of Mineta 0 Report post Posted July 18, 2016 That is really neat- unrelated to anything, I'm looking forward to the HBO series Mighty Eighth...if that ever comes out. Quote Share this post Link to post Share on other sites
Shirogane 20 Report post Posted August 27, 2016 POLAND STRONG - BROWNING POWER Quote Share this post Link to post Share on other sites
Wellington99 29 Report post Posted September 13, 2016 This is a brilliant channel by the way Quote Share this post Link to post Share on other sites
Wellington99 29 Report post Posted September 15, 2016 Also happened to find this, if you have like 3 hours to spare: Quote Share this post Link to post Share on other sites
von_Lipstig 3 Report post Posted December 12, 2016 https://youtu.be/Cd5dBYNQevE *popcorn* Hint:50+% of ships/shipboard from '39 summer ЧФ maneuvers Quote Share this post Link to post Share on other sites
Legate of Mineta 0 Report post Posted December 13, 2016 oooh! Quote Share this post Link to post Share on other sites
