Sorry about how I keep multi-posting, I don't mean to, but when something doesn't work, I instinctively click it again, and old habits die hard. I'm working on it though.
I am sorry for not getting back to you, pm me your email address and I will send you the file. I have five or six quad 1/4", two are for my 1/96 Bart, the others are earmarked for either an 1/96 Alsace, or a Gascogne and a Clemenceau in 1/96. I will attempt to locate a source for 1/4" quads for you, but not to many are being made domestically.
I've emailed my Jean Bart plans to Tugboat, so hopefully he can get them posted in the free plans section. These are just basic plans: the rib, keel, and deck contours. The 144 set actually has the ribs spaced for Treaty/Fast Gun, so they are slightly further apart than what the Big Gun rules call for. If you would like the extra four ribs that the Big Gun rules give you, all you have to do is figure out how to print the 96 scale plans at exactly 2/3 scale. Since the rib spacing on the 96 version is exactly 3", a 2/3 scale of the plan will give the required 2" spacing and 144 scale overall. Good luck.
I've got everything set up to cut the ribs, the only problem is that printing out the ribs is challenging. For some reason all my printer can do is scale the plans down to fit the paper, or print a 11x8.5 in rectangle centered on the middle.
I've successfully printed the first 22 ribs. I think I'll wait till I do those ribs before I print others. Are the lines the WL and 1 inch below?
There haven't been any updates because not much has happened, however, I have a cannon design I would like to run by everybody. The diagram will follow, in the meantime, here's the accompanying description: It's a sliding breech negative pressure cannon. The breech is at an angle to allow a straight air path. The 150 psi fring circuit air gets reused to motivate the lower pressure air, like a jet pump. Each half has its own isolated accumulator, so most issues will only effect half the turret. (Like in real life with the bulkhead between each half. It has tight tolerance, low friction barrels.
Sorry it's so... aesthetically challeged (aka: Ugly). It wasn't drawn by a 3 year old, I was in a hurry.
By the way, my cannon design is somewhat based off this: https://rcwarships.org/rcwarships/bb44/sarmament.html
No comments? I have a few questions: What is Jean Bart's rudder area? It looks like ~3.5 sq in, times 1.25 = ~4.375. Does that sound right? What would be the best rudder configuration? (Length and depth, cross sectional shape...) How many Amp Hours of battery should I have? How much do most battleship pumps output?
Perhaps you could describe step by step how the gun is supposed to work. A picture helps, but I'm not sure how each part moves and what is pressurized before and after the valve is actuated.
The top right end of the cylinder is pressurized, overpowering the spring, moving the piston down. The o-rings seal the accumulator, and the breech (meaning the hole through the piston) is opened to the magazine, allowing a round to drop in. When the cannon fires, the QEV opens, causing the piston to move up. This effectively opens the valve, completing the air path (with the o-rings sealing off alternate routes), causing the cannon to fire. After leaving the QEV, the Co2 is routed as shown, and, being of high pressure and traveling through a narrow length of tubing, has a high velocity. So, as it merges with the low pressure Co2, it should accelerate the airstream. Then, after a preset amount of time, the QEV is closed, causing the Co2 to pressurize the "actuator", moving the piston down. This again seals off the accumulator, and opens the breech to the magazine.
Eh, hobby lobbys are all kinda different so you might want to check it out at the very least. The ones by me are closer to Micheals arts/craft stores. You want to find a local hobby shop that is not really part of a larger chain. They got the best stuff. Hobby Peoples are nice for RC stuff but they focus more on planes and helicopters, at least out by me. good luck!
So, with school almost over, I am preparing to begin an all out shipbuilding mania! The plans I have are great (by the way, I'd like to thank glaizilla and RCENGR for said plans, since I believe I forgot to at the time) however, my rib making skill has proven to be subpar. So, because of this and several other reasons, I'm thinking I'd like to have the ribs laser cut. Thoughts? Advice? Suggestions?
Maybe contact Mark (originator of the laser cut 1/96 Jean Bart) to see if he might be willing to scale down the cad files to 1/144 for laser cutting?
