Body issues improving slowly. Still not up to full strength or speed. I have tasks waiting for me to be less hurty, less stony, less shaky. The work is even laid out. In the shop bathroom, my mechanic's creeper waits for me to get down on my back and hold a plumber's torch above my (shielded) face. Like that.
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There's a trip to a friend's house I need to make, both to see my old and dear friend of course, but also to take advantage of him yet again, in that he has lead shot which is surplus to his needs, and I have a need for lead shot. (the hoist cart main counterweight) Unfortunately, one car needs to go to a shop (or I need to buy Yet Another Code Reader for it - heyrockythistimeforsure), while the other car has failing front CV joints and half-axles so we're reluctant to take long trips in it, where "long trip" = anything longer than a trip to the doctor's office across town. My friend is an hour's drive away by freeway.
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There is steel I need to buy, from the hardware store, for the hoisting cart's outriggers, but that might have to wait until February because cash flow is a thing.
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Three things dramatically affect my cognitive ability as an Old Fart, including things like my ability to design things in my head:
• hydration
• exercise
• level of depression
To the extent I can manage those three things, I get to have a life.
I like to say my head is like an Italian sportscar; capable of high performance when everything is just right, but is a very high maintenance machine. ;/
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I've been having to trap mice in the garage which is bugging me because I don't like vermin unless it is Vermin Supreme. I guess their population is up this year. Can I borrow someone's chickens? Or rat terrier?
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For a lark, designing a suppressor for a cannon chambered in 38mm L&L*. So far the basic likely dimensions are on the order of 6in x 24in. Probably longer because the initial expansion space is not big enough. It's a big damned can, and yet probably not big enough.
As for the guts, Hiram Maxim knew what he was about, honest tests prove it. And I tell you this for free, I will never design or purchase a can with a monocore. And oh mama this is a lot of gas to deal with, and you've got to give it somewhere to go, and if it fills up and then pressurizes that 'somewhere', it won't be a quiet can.
The next problem is the ginormous hole (call it 40mm) down the middle of a 38mm can. It seems to me that doing the various tasks of suppression† will all have to be done before the bullet leaves the can, because once it is no longer obstructing gas flow, it will be very hard to divert gases from the center of the bore into our radial or other chambers. The first solution suggested for this is always asymmetrical baffles, which try to use some of the gases to redirect other parts, and baffles which allow gas flow to go around the bullet in order to "push back at" the remainder of the existing gases.
Both of these schemes cause bullet deflection and are thus no bueno. I don't even like wipes for the same reason, despite that they are perfect problem-solvers for managing gas flow and preventing precursor noise. They Fing touch the bullet. Nope, nope, nope.
Hiram Maxim called it: The best you can hope for is to peel off the outer layer of the gas flow a bit at a time until there is hardly anything left, but this takes time and distance. An example is the deathly quiet MAC / Sionics design fielded in Vietnam for the M-16. Very long and narrow, with some variation in the baffle design inside (the semi-useless spirals were Mitch Werbell's misunderstanding of how British spiral baffles worked) I don't think I want to build a can as long as the barrel, LOL.
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I am still seeking distractions and diversions in all directions with only a little luck, not dealing with my bro's death.
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* I just made up that chamber, but the initials are of the two designers / perpetrators' last names
† 1. make leading edge of impulse much less sharp, 2. reduce peak impulse amplitude, 3. release stored gases slowly
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