jud
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jud got a reaction from flying_dutchman2 in Why do hot guns jump violently?
Agree with Spyglass, Guns recoil, cold or hot when fired. Often after ships guns were heated up, they would double shot them. Double shoting a cold gun often caused a failure, double shoting would cause more recoil. Getting sloppy when using black powder can cause a a gun tube to fail. The reason projectiles are rammed hard against the black powder charge is that the power curve of black powder goes high quickly and there needs to be a instant reaction on the projectile to get it moving before that power peak is reached, if not rammed hard against the charge, voids will fill up with pressure before the projectile starts to move and the short time to do that delays projectile movement enough to make a bomb out of the gun. Smokeless powder takes more time to peak, that time gives the projectile time to start moving after the voids are filled with pressurized gas and before the pressure peak. Pick up a black powder cartridge and shake it, because the powder fills the case and often is a compressed charge, shaking will not create the sound of powder moving around. Smokeless powder seldom fills the case and not often compressed, shaking the cartridge will produce the sound of powder moving around inside the cartridge case. Sorry for the windy response.
jud
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jud got a reaction from isali in Brass Framed Display Case
Read a report about cast lead and solder deterioration of old models being archived, some being in wooden crates for years. They found that some woods and other materials, as they age will produce gasses that will cause lead and solder to break down into a white powder. Wasn't addressed but I would expect organic building materials and glues used in construction of models would also produce gasses that would concentrate in a sealed display case and have an impact over time on the very thing intended to be preserved by the sealed case. The recommendation was to allow venting with a minimum of 2 total changes of the air inside the case every day, to prevent the accumulation of harmful gas.
jud.
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jud reacted to Geoff Matson in How can I prevent "Sagging" rigging?
If you have a Jims Byrnes ropewalk you can use small gauge wire (32 gauge wire) use it as the core and then thread the three spools with the thread you want and give it a go. Your rope comes out as 4 strand with one strand the wire and the other three strands the rope. I have made a test piece with Coats and CLark 35wt black thread and 32 gauge wire. It really firms up the rope. Still have a lot of experimanting to do.
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jud reacted to Ulises Victoria in Will using a curling iron for plank bending ruin the iron? (Moved by moderator)
Tony and jud. I did not wet the wood in this example. I have to say it was a very soft wood, the kind used in first planking jobs. For harder wood, I would let it soak in water for several minutes, how much depending on how hard the wood. Adding ammonia to the water accelerates the whole process. Steam is another way to soften the wood.
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jud got a reaction from captainbob in Ratlines....why so important.....
By placing rat guards on the shrouds, thereby stopping rats from running up and down the shrouds, ratlines wouldn't be needed.
jud
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jud got a reaction from Script in Ratlines....why so important.....
By placing rat guards on the shrouds, thereby stopping rats from running up and down the shrouds, ratlines wouldn't be needed.
jud
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jud got a reaction from trippwj in Ratlines....why so important.....
By placing rat guards on the shrouds, thereby stopping rats from running up and down the shrouds, ratlines wouldn't be needed.
jud
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jud got a reaction from mtaylor in Ratlines....why so important.....
By placing rat guards on the shrouds, thereby stopping rats from running up and down the shrouds, ratlines wouldn't be needed.
jud
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jud got a reaction from Jay 1 in BOUNTY by samueljr - Mamoli - refit
While aboard the Ammen DD 527 in 1960, I was told of another use for popcorn. If ever unfortunate to get infected with those little croch bugs, go to the movie and buy a bag of popcorn, butter and salt it well. As you eat it, some will drop onto your lap and the little critters will have a feeding frenzy. Being a herd animal, when one gets thirsty and goes for a drink, they all will go with him, when they do, change seats.
jud
couldn't help myself.
Been watching these builds and giving some thought into building the Rattlesnake from scratch. Do have my own lathe and milling machine and have been giving some thought about building a saw and thickness sander to aid in providing my own cut lumber. Made my living as a Land Surveyor and just closed my office and moved it home, so I already have Cadd and a stand alone COGO program I have used for years along with a printer that will print 24" X 36" sheets. I may have a head start on the need graphics tools. Still doing some Survey Jobs going on so the ship building probabley won't get started until mid winter. Meantime I will continue to enjoy watching the builds and reading the banter.
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