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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997 |
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#1 | |
Eternal Patrol
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But, if you're going to insist on continuing this you need to explain what "150% overload means". Did they suddenly get 9750 horsepower out of an engine rated for 6500? It is a characteristic of all onboard speed measuring equipment to be increasingly inaccurate with increasing speed. Your car's speedometer is a victim of this, as is a mechanical air-speed indicator. Are the sub's measuring devises perfect? I said I don't know. I said I still have doubts, but that's part of my nature - I don't believe anything until I have hard facts, and in this case there don't seem to be any. Maybe they were right. Maybe they were wrong. I don't know, but I've studied enough details about how ships operate over the last two decades that I question how this could be accomplished, and I'll continue to do so. Believe what you want, but I've long held that any change to a game based on anything other than solid proof is a bad idea. But the developers allow it, and you are free to use it and to justify it however you want. I only stated my opinion and gave my reasons, nothing more.
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“Never do anything you can't take back.” —Rocky Russo |
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#2 |
Bosun
![]() Join Date: Jan 2011
Location: Minneapolis
Posts: 64
Downloads: 66
Uploads: 0
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![]() ![]() OMFG, You guys are still going off on this.......... I can see wanting some form of proof for these things, personally I don't have the time or desire to find another copy of Clear the Bridge to list out page numbers. I'm glad its kinda settled, maybe. I just got off a very disappointing attack involving a lone Nagaro, six prematures, two duds and two misses......all ten tubes. special abilities right here ![]() Its a GAME- albeit my fave. |
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#3 | |
Navy Seal
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The Barb would be another example.Barb had a destroyer/PB type that was closing fast and they could not open the distance, the small amount of extra speed enabled them to pull away. So if the instruments were incorrect and they were not making the speeds they recorded then most likely Seahorse would not have been able to keep up and Barb would not have been able to get away.I almost forgot Tang, who would not have been able to cover such a large area so quickly when rescuing pilots. I get your point of view and skepticism, I normally share it with just about anything but feel it's unwarranted here because if you count the word of highly respected naval officers and crew, the time that has elapsed without dispute(again that I know of), and again, the results.Seahorse kept up while running flat out, Barb escaped.Tang was able to cover enough ocean to rescue many aviators and aircrew shot down during the Truk raid.I am sure other boats in the war operated at higher speeds, possibe some outside the Gato/Balao/Tench classes than they were supposed to be able to accomplish and odds are some may have had incorrect readings but we know of these three due to their stellar war records and books.The results speak for themselves in the well documented cases. |
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#4 | ||||||||
Eternal Patrol
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http://pwencycl.kgbudge.com/P/a/Patrol_Boats.htm Also, if there was a Japanese submarine chaser that could make 22-23 knots, what shape was this one in? Fouled bottoms slow ships down. Engines in need of serviceing slow ships down. Again, I'm not saying it didn't happen, or that it couldn't happen, but you see my problem? Quote:
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“Never do anything you can't take back.” —Rocky Russo |
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#5 |
Silent Hunter
![]() Join Date: Sep 2010
Posts: 3,975
Downloads: 153
Uploads: 11
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![]() I hesitate to add anymore to this, lest it turn into a prolonged argument. TBH, I'm not all that invested in the crew special ability thing, but I can think of a few possibilities that could explain why the boats were able to substantially exceed their "maximum" speed. |
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#6 |
Eternal Patrol
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Good points. My final answer is "I don't know". Reducing weight would obviously help a little, but hydrodynamic drag is the real limiting factor, and the fineness (length-beam) ratio isn't going to change, and that's the real cause of limitations to top speed. Your points about the engines and the batteries make sense. I have no idea how much actual increase you would get that way, but the engines are rated at 6500 hp and the electric motors rated at 2740 hp, which is 42%, which would not get a 42% increase in speed but might account for an extra two knots. But if that was really possible you probably wouldn't need a 'special ability' to do it, just a competent engineer. Game-wise, increased chance of a breakdown plus having your batteries drain at the same time might be a fair trade-off. One set of worries in exchange for another. Too bad these games don't take things like that into acccount.
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“Never do anything you can't take back.” —Rocky Russo |
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#7 |
Navy Seal
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The diesels were rated at a certain horsepower at a certain RPM limit. By ignoring the limit and bypassing the governors it was possible to run the engines faster than they were safely rated and so produce more than 100% rated power. For an unknown length of time at the expense of an unknown amount of serviceable or possibly non-serviceable damage.
That is the source of the extra power. The diesels did not connect to the drive shafts at all. They strictly supplied power to the batteries and/or electric motors, which were all that powered the sub. Cutting down the fairwaters was for visibility on the surface. There was very little difference in displacement because the fairwater filled with water when the sub submerged. If anything, the irregular shape of the resulting conning tower would have added more drag to compensate for the missing weight of the steel for very little change in boat handling. When you reduce cavitation you generally increase thrust. That may have had a little effect. But the fact that the stated advantage was to cut down on noise kind of implies that speed gains were minimal.
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Sub Skipper's Bag of Tricks, Slightly Subnuclear Mk 14 & Cutie, Slightly Subnuclear Deck Gun, EZPlot 2.0, TMOPlot, TMOKeys, SH4CMS |
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