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How do you keep the various military subdivisions straight? Battalion, brigade, company, corps, division ...
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Aug 3, 2016 00:04
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Phanatic posted:Jesus, is that how they actually did it? Just a big honking rheostat? That's insane, that's the most ridiculously inefficient way of implementing a variable current supply they could have possibly picked. To a degree, yes. I'm rather fuzzy on all the different flavors of electric motor, but you can adjust the amount of current in the stator windings to control the strength of the magnetic field the rotor current "pushes" against. It's much less than the full rotor current but that adjustment still has to be done via rheostat. Vaguely related but likely of interest to the thread anyways, have the owners manuals to a WW2-era US fleet submarine. The relevant portion I want to call out is the section on the propulsion control equipment.
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Aug 11, 2016 05:26
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Polyakov posted:Mines from 1967 to 1991. https://www.youtube.com/watch?v=un01zw62n70 COs of USS Samuel B. Roberts and USS Cole in the relevant time periods in a Q&A on leadership's importance during damage control.
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Aug 24, 2016 03:55
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Why did American and German torpedoes have the same laundry list of flaws going in to WW2? Was it a case of convergent evolution and no money to fully test everything during the interwar period, or did someone steal the other guy's notes?
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Sep 4, 2016 01:39
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my dad posted:Holy poo poo, loophole 14... Loophole 14 only killed officers who refused to believe the local commanders, so ... 
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Sep 7, 2016 23:33
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Eela6 posted:I have a bunch of questions about cannon in the late 18th / early, 19th century, if anyone minds taking a crack at it. How is it made? Is it something that can be made relatively ad-hoc, like musketry? (can muskets be made ad-oc? I think so but I'm not sure. Or are people mostly using rifles now?) Or do you need sophisticated facilities? Is most cannon in the colonial wars made in the Americas, or overseas and shipped over? How much training do you need to use it? What kind of ammunition does it use? Can't comment on artillery, but have an hour long video on gunsmithing in that time period: https://www.youtube.com/watch?v=bAzJOULyx5c
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Oct 4, 2016 19:28
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Nenonen posted:Only after the mathematics was figured out, though. Secrets of the artilleryman's guild.
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Oct 4, 2016 20:48
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Trin Tragula posted:100 Years Ago: An Announcement Now we'll never find out how it ends 
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Oct 5, 2016 02:53
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gradenko_2000 posted:When people talk about encrypted/coded messages over the radio in WW2, what does that actually mean? It is it like, you write down your message, jumble the letters according to your cipher, broadcast the letters in morse [?], the receiver gets the jumbled letters, and then they decrypt? There was also Hellschreiber as a sort of radio fax machine for text. The chief advantage was presumably not needing to know morse. I don't know how prevalent its use was.
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Oct 7, 2016 21:15
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    Pikes, square, line, and James Burke. 
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Nov 7, 2016 18:48
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Owlkill posted:So I've been getting quite into family tree research and have managed to track one particular branch back to the late 17th/early 18th century, where one of my many times-great grandfathers has his profession listed as "gunsmith". I realise this is quite a broad question given the limited info I can provide but I wonder if anyone can tell me more about this trade at this time. This person was born in 1675 and worked in the northwest of England, in Cheshire and Lancashire. What would this industry have been like at this time? I realise this is pre-industrial revolution so would this have been quite a "cottage" industry? presumably tinkering with gunpowder and making guns that don't blow up in people's faces means this would have been quite a skilful trade? And would the same people who made hunting pieces etc be making the weapons the army would have used? Abusing this to repost an awesome video of 18th(?) century gunsmithing: https://www.youtube.com/watch?v=bAzJOULyx5c
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Dec 21, 2016 20:40
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xthetenth posted:But they're really long lead time items. Compared to the timescale of other modern military acquisition programs? Nah.
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Feb 8, 2017 00:01
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