RE: Pen as a shaft sealer?
Hello, Well I'm not 100% sure, but from what I understand, if the top of the packing-seal (pen) is above the water-line inside the boat --a loose fit with a bit of petroleum jelly would probably work just fine. I think? Others may know better, as I'm not running a racer and it may be a different story when dealing with super-high RPMS and high torque. I hope this help, -J
Posted on: 6/14/2007 10:35 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5986467

RE: How many RC submarine combat clubs are there?
Well you could always do what I had to and start your own club. Thanks! -J
Posted on: 6/11/2007 10:04 PM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5975381

RE: How many RC submarine combat clubs are there?
As far as I know none. But I'm staring a new club in Massachusetts that would welcome it. So far I have only a hand full of people interested and we hope to incorporate smart weapons. Good luck to you. -J
Posted on: 6/11/2007 12:04 PM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5972840

RE: Drive mechanism for an oar powered boat
Awesome! I wonder if this inexpensive motor controller would be helpful to you if speed control is an issue? I built one, for a different application, and it works great. [link]http://www.allelectronics.com/cgi-bin/item/MSC-6/search/MOTOR_SPEED_CONTROL_KIT_W_MOTOR_.html[/link] -J
Posted on: 6/2/2007 11:00 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5936595

RE: combat video
Awesome video! You got to love those waders! But the sinking has to be the best! Cheers -J
Posted on: 5/31/2007 1:50 PM by Author "Jhoyoza" in the forum "RC Warship Combat"
http://www.rcuniverse.com/forum/fb.asp?m=5926301

RE: Calculations(will it float?)
Awesome Flabum, Well not that you almost got killed, but for the info! Surely, it may help save someone else's life. (Especially mine, as Murphy's Law follows me around like a black-cloud!) I'm glad you and your passengers are OK and no one was seriously hurt. Getting zonked off the head with an 800 pound motor sounds like one heck of a head-ache! Your pic is worth a thousand words and your advice is priceless. Respectfully Yours, -J
Posted on: 5/28/2007 3:53 AM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5910883

RE: Calculations(will it float?)
Oh Brother! Who asked YOU? here are alot of people on here. If you don't like the subject don't answer, or waste you supposed valuable time.[8|] -Later
Posted on: 5/27/2007 6:39 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5908990

RE: Calculations(will it float?)
GreenAce92 , Look, don't get discouraged and please, feel free to ask all the newbie questions you want. Everyone has to start somewhere! Quicksilvers explanation of buoyancy is even simpler than mine and I envy his simplicity. Also, I should have recognized that COG probably stands for Center of Gravity when discussing model building....Dolt! [:o] (But it is a small fishing boat too.) But hey, learning is fun too, and no one is expected to know everything. Thats why these forums are great! As far as "malcontents" are concerned, do your self a favor and try to ignore them. This is not the first time I have seen those who feel they have cornered the "Fun" factor in the hobby business. (Your not wasting anyone's time.) Banner-ad sponsors, many fellow hobbyist and even myself (for what it is worth) welcome your participation. Who knows you may be the making of a champ someday! Or at least spend a lot of $$ trying...lol. Hang in there, and not knowing is the first step toward learning! -J
Posted on: 5/27/2007 1:19 AM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5906750

RE: Calculations(will it float?)
I know there are people here who know a lot more about props than I do, cause I know little if nothing about them. (One thing about this place is people sure know how to go fast!) I never heard of the "cog" of a boat. However, I believe a COG is a small fishing boat. -J
Posted on: 5/26/2007 10:33 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5906200

RE: Calculations(will it float?)
I will try to keep it simple here, but:[8|] A boat floats, because the fluid in which it is floating offsets the downward pull of gravity and pushes it up. The scientific name for this force, which allows even immense objects to float in liquid, is known as buoyancy. Archimedes principle states that an object fully or partly immersed in a liquid is buoyed upward by a force equal to the weight of the liquid displaced by that object. The buoyancy of an object is related to its density. The density of an object is defined as, its mass divided by its volume. If the total area of an object makes contact with the water is large enough, the object floats. The object must make room for its own volume by pushing aside, or displacing, an equivalent volume of liquid. The object is exerting a downward force on the water and the water is therefore exerting a upward force on the object. Mercury for instance has greater density thus gives objects greater buoyancy. Objects of lesser density float on liquids of greater density. This explains why wood and styrofoam float on water, whereas concrete and steel sink. It also explains why it is possible to make boats out of steel or even concrete. As long as there are portions of the boat below the surface of the water (that are hollow) the effective density of the boat can be less than that of water even though the real density of the material it is made of is greater. Most of the space in the boat is taken up by air. The air makes the boat less dense than water. I hope this helps, -J
Posted on: 5/26/2007 6:38 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5905443

RE: reinforcing plastic for combat
Hello, From what I understand. Most battle boat hulls are made of doped-paper and not plastic. I think, one reason is for safety (to help prevent the projectile from dangerously ricocheting at an odd angle and creating potentially dangerous situations.) and the other reason is, that doped-paper can be repaired relatively easily. The reason I comment is, our new Battle-Boat-Club here in Massachusetts will be starting soon, and perhaps may be one of the most lenient of them all. (We hope to include self-guided weapons.) We had our first official meeting on May 21, 2007 and plastic hulls was one of the first questions asked! Please let me know what you find out. I'm very curious if there is a Battle-Boat club that allows plastic-hulls. Apparently the projectile velocity would have to be quite high to penetrate even 3/32" of plastic. We plan to do a lot of pre-testing to determine projectile velocities and material penetrations. (We want to create classes determined by muzzle velocity and projectile weight.) So far, doped paper appears to be the safest and most practical as no metal will be allowed in (Low powder load) torpedoes, rockets or depth charges and would be totally useless against plastic hulls. Of course, safety, and legality is number one and complete annihilation is number 2! [:D] Thanks, and good luck! -J
Posted on: 5/23/2007 9:00 PM by Author "Jhoyoza" in the forum "RC Warship Combat"
http://www.rcuniverse.com/forum/fb.asp?m=5893591

RE: Utilitarian Electric R/C Boat???
Hello, I'm not sure what you are towing and how much power you need, but this one is reasonably cost effective: [link]http://www.ambientweather.com/ps300113pbc.html[/link] The hull is 30" long and could easily tow another model boat. The trouble is the radio is cheap and the control is either full right, full left, straight. And the Prop is either full forward or full reverse. I ripped out the guts and made my own get-up. I hope this helps. -J
Posted on: 5/14/2007 8:37 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5854858

RE: Hunter Killer/Balistic missle sub club.
Yes sounds good to me. And the technology is here in 2007. But I think you can put guidance into everything but rockets. I'm not sure but I think it is against the law? Does anyone know? Thanks! -J
Posted on: 5/13/2007 2:59 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5847592

RE: Warheads
To add an image you c;ick on the image icon in the reply part of the forum. ([image][/image]) Your put the image file between the two image statements. It will then download if from your computer. Yes that would be awesome please draw up plans with a BBQ starter! Sounds like real fun! -J P.S. Don't worry if I blow up my own boat...oh well!
Posted on: 5/13/2007 2:50 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5847577

RE: Camera
Sure I don't see why not. I have the same camera. (I think) I'm not sure the spring has to have iron fillings in it? As long as it is conductive metal it should work including aluminum. Keep me informed, I'm Very curious of your results. Feel free to PM me or send me an Email: Jhoyoza@yahoo.com. Thanks! -J
Posted on: 5/12/2007 1:46 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5843861

RE: Warheads
Neato! I'm curious could one use of those electric barbecue starters could be used? My new barbeque has a AA battery in it and requires very little force. And what do you use as the explosive compound? Does it actually explode to sink a boat or is just make a cloud of smoke? Thanks! P.S. The reason I ask is in the club I'm starting, I'm trying to make a more creative atmosphere to attract kids and hopefully keep them away from other influences. Kids like things that go bang, and yes adult supervision is important! I have already found some local sponsors and a someone who is willing for us to use his duck pond located on private property.
Posted on: 5/12/2007 1:40 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5843854

RE: Wouldn't it be cool if......
Hi, That is quite interesting. My question is how to you get rid of the heat, and how do you start the engine after you surface? Thanks! -J
Posted on: 5/11/2007 1:37 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5839604

RE: Camera
Hi, The antenna is simply a piece of wire. Adding wire would probably not hurt anything, however the length of wire can also be related to the wave-length of the frequency. I wouldn't bother opening up the camera, just remove a bit of the insulator at the end and add wire to it. You should be able to solder to it if you are careful. If it doesn't work, you can simply unsolder it, and use some shrink tubing to seal it up again if desired. But it should work ok, however the range will not increase if that is what your looking to do. Good Luck! -J
Posted on: 5/11/2007 1:34 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5839599

RE: servos
Hi, Servos are basically small geared motors. The way controllers talk to them can be a bit difficult to understand depending on the electronics background you have. However, it is not that hard either. Here is a good plave to start: [link]http://www.seattlerobotics.org/guide/servos.html[/link] Enjoy! -J
Posted on: 5/11/2007 1:21 AM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5839564

RE: Magnetic hatches?!
WOW! LOL...I can't hardly believe what I just read! Pinch me...I must be dreaming. -J
Posted on: 5/8/2007 10:59 AM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5827114

RE: rc
Thanks Umi_Ryuzuki, Tell me, what is the muzzle velocity of these BB's? It must be way more than what is needed to punch through paper if it breaks windshields. Yes eye safety is #1. I know even low velocity BB-guns hurt like the be-geezers at close range, and can easily take an eye out. High-velocity rifles approach .22 caliber rim-fire power and will penetrate skin even at long range. My pump-gun can kill a squirrel at 50 yards easy. It approaches 800 feet per second at the muzzle. Way more than what is needed for warship combat. My CO2 pistol with a 12 gram BBs is rated at 340 FPS for the first shot anyway. Still way more than required to punch through doped-paper, and would most likely just sting a little if it hit skin at more than 20 feet. (I don't think it could break a windshield.) I would guess at close range even 10-20 FPS would be enough and reasonably safe for warship combat? Glad to be back to civil conversation. [:)] Thanks! -J
Posted on: 5/7/2007 8:29 PM by Author "Jhoyoza" in the forum "RC Warship Combat"
http://www.rcuniverse.com/forum/fb.asp?m=5824552

RE: rc
I agree! Get back to having fun! BTW: It was not me who started this. Some one had to help defend the kid from these vicious attacks! All over a poor choice of words. Your right about that! At least we agree on something! -J
Posted on: 5/7/2007 7:47 PM by Author "Jhoyoza" in the forum "RC Warship Combat"
http://www.rcuniverse.com/forum/fb.asp?m=5824354

RE: rc
Yep, Did KoolAidman say he was going to shoot at cars? Or this another assumption? You do not need a license to buy a BB-gun or other low-velocity projectile shooting toy in Massachusetts. [8|] Shooting at cars it certainly a crime! Owning a BB-gun or a sling-shot is not. And BTW: a blank cannon has a paper wad to compact the load and is not illegal in Massachusetts. (Unless there is a local noise or discharge ordinance.) Add a projectile with any significant weight or mass, thats another story. It then becomes a fire-arm. Shooting a blank wad in someones face is also a crime. Discretion is to be used by law enforcement. Do you really think a kid who is raising havoc by shooting his stratego or chess-men with a BB-gun should be charged with a crime? Shooting at cars and people is totally different! Perhaps we should just put the kids in jail first. Just in case! You can buy toy cannons or BB-gun or sling-shot or even a long-knife on line and they will ship to Massachusetts. No Problem. If you want you can hurt someone with a box of matches, or even a pillow. It doesn't make it illegal to own or purchase them. Like I said, intent is everything. Harping on the word havoc is ridiculous. A piece of pipe has the ability to shoot projectiles also? Or worse! Like I said, it is the intent that counts and he already said it was a poor choice of words.....I would not discourage Koolaidman from contacting the local police about firing a noise cannon. Yet another assumption! As a matter of fact it is a good idea to tell them and ask them if it is ok. Also parental supervision is also encouraged if under age. I guess some people really are malcontents...lol. Again, I rest my case. [:-] -J
Posted on: 5/7/2007 6:11 PM by Author "Jhoyoza" in the forum "RC Warship Combat"
http://www.rcuniverse.com/forum/fb.asp?m=5823939

RE: INTRESTED IN BUILDING A BOAT for COMAT!!!!! BEGINNER
Hi! There are lost of great web-sites on just how to build them and the rules of each club. Just do a War Ship Combat Google search. In New York there are already some clubs to join. And new ones starting all the time with depth charges and torpedoes! Have fun. Glad to see the younger crowd get involved! Enjoy! -J
Posted on: 5/7/2007 3:39 AM by Author "Jhoyoza" in the forum "RC Warship Combat"
http://www.rcuniverse.com/forum/fb.asp?m=5819049

RE: rc
Perfect! I rest my case! -J
Posted on: 5/7/2007 2:57 AM by Author "Jhoyoza" in the forum "RC Warship Combat"
http://www.rcuniverse.com/forum/fb.asp?m=5821194

RE: Is it worth it????
Hello, That is very nice! I think Tidnab's solution is perfect. Let me know if you lose interest I would love to own it myself! [X(] What is the overall length and other dimensions? Thanks! -J
Posted on: 5/6/2007 6:32 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5819118

RE: Four Stroke marine glow engines?
hey there, Try this: [link]http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGBH3[/link] Enjoy! [:)] -J
Posted on: 5/6/2007 6:26 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5819089

RE: New Website
Neat-o Great graphics and links! I bookmarked it. [:)] -J
Posted on: 5/6/2007 6:22 PM by Author "Jhoyoza" in the forum "RC Submarines"
http://www.rcuniverse.com/forum/fb.asp?m=5819079

RE: Magnetic hatches?!
Edmond scientific has some great magnets and I think they ship to UK. [link]http://scientificsonline.com/search.asp?t=ss&ss=magnets&x=0&y=0[/link] Also places like all electronics has a great selection: [link]http://www.allelectronics.com/cgi-bin/category.cgi[/link] Radio Shack: [link]http://www.radioshack.com/search/index.jsp?kwCatId=&kw=magnets&origkw=magnets&sr=1[/link] And you may want to click on some banner ads here at R/C universe a see if they have any. Enjoy! -J
Posted on: 5/6/2007 6:19 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5819073

RE: Stuff to add to a rc ship
Great! Any pics? -J
Posted on: 5/6/2007 6:03 PM by Author "Jhoyoza" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=5819009