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Desert Boat,
I tried to send
Desert Boat,
I tried to send you some emails a while back, but did not get a reply, but I am in for getting together, and there is another guy that is here in Mesa. I also have a few friends that I am mentoring, and one that is starting to get to the hardware stage in a Kilo conversion. I have talked to Tim about starting our own subcom chapter here in mesa and I think that there might be enough interest in doing it. I will call you sometime tomorrow.
AdamComment
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Hey Red, that link to
Hey Red, that link to the little dynamic diving XXIII was cool...even if I can't read a word of the text on that site...not sure what country those people are from, obviously somewhere in Europe. Who ever the guy is he knows his history on the XXIII boat and some of the commanders of them.
Desert Boat, getting together a little Wolfpack sounds like a good idea to me! Didn't realize there were this many sub guys in Phoenix...after all, it is a desert haha.
I may not have an RC sub model yet, but I do have a slick 3D model of a Type XXI ocean going prowler. I upgraded my Lightwave 3D software this summer and low and behold, guess what came with the included models on the DVD disk...
The boat was already textured and set in a virtual ocean too, so I can't take the credit of doing all that stuff, but I did set up the camera and rendered the following images below. For your viewing pleasure or wallpaper if you'd like]http://members.cox.net/neon_knight/images/TypeXXI_sea-trial2.jpg[/img]
I did a small 24 second animation of this scene but the file size is too big to post on my FTP. The water, boat, and camera are all moving and the water running out of the flood holes on the sides of the hull is animated also, it really is cool what that Lightwave 3D can do.
SteveComment
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Hi Steve, The best way
Hi Steve, The best way to access this hull, is to glue it up, and then cut it at the water line. The conning tower which does get glued to the hull, is just too small an access point to be practical. The "echo chamber" is resin and gets glued in place after the hull is assembled so access here would also be difficult. In regard to the size of the model......I have both kits side by side, and once you see it, you will agree that the XXIII is about one third the overall size of the Type VIIc Honest !!!
Dave Welch is a member, and has a beautiful WTC for the Revell Type VIIc, which he sells. You can find him in the "members homepage" section. He may be able to help you locate the motors, batteries, and micro-reciever and servo's for your project.
Good luck and keep me posted !!!
Regards, KurtComment
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Much like the Walter Perhydrol
Much like the Walter Perhydrol Uboat projects of WWII, my Special Navy XXIII RC boat has been cancelled do to impracticality of the project.
I corresponded with Dave Welch via a few emails and he basically brought me back to reality and out of fantasy land.
It was fun to discuss the possibility though and get input from various people here on it. I thought maybe I'd get a XXIII in the water without having to spend money on a 1:32 scale or larger model of it. I obviously was wrong. If i had somehow managed to get the little model running, a collision with a duck would most likely have proved to be fatal for the little Uboat anyway.
Thanks to everybody that provided input on the project.
SteveComment
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Perhaps I will go against
Perhaps I will go against the tide of experience, but it is not impossible. Perhaps not possible with the materials that are commonly used, but there are other methods that have not been used. I am making, to my knowledge, the smallest wtc with piston tank that I know. I think that I could go smaller. There are also magnetic actuators that could be used. Like I said before, going small does not mean that it will be cheaper. The word "impossible" means to me challenge, and yes it will be, but very possible. I will shot you my ph# and we can talk. I have some ideas.
Adam
Edited By aeroengineer1 on 1140745447Comment
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Hi Steve, A better mousetrap..........you
Hi Steve, A better mousetrap..........you might consider cutting the hull in half down the centerline. This could be done by placing the wtc inside the rear section of the hull before you glue the rear sections together, running the linkages and then sliding the front section over it, into place.
Also......In regard to the size of this boat in relation to the type VII........I meant the actual working volume of space that you have inside the hull, for your wtc. Hope that helps !
Regards, KurtComment
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A rack and pinion system
A rack and pinion system was mentioned for rudder and dive plane operation.
The gears from a RC car sounds good for the pinion.
What do you think about using a cable tie
for the rack?
The locking mechanism could be used as a guide to position the rack next to the gear.
Clip the rack to the desired length attach to a slim acuator rod....
Comment
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That is an idea, or
That is an idea, or another idea is to use the gears that come from a small slot car. They are small enough to fit and they are pretty cheap. there is another option, but I would have to draw it. Instead of using the control horn of the servo, it has a piece of rod that extends from the servo top that rotates. At the end of the rod, it has a bend. This bent end fits into a hole that is drilled at an angle to the axis of rotation. As the servo rotates, it causes the bend to go from one side to the other causing the rudder to turn.
AdamComment
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Never say never, i suppose....I
Never say never, i suppose....I just might attempt the 1]http://www.subcommittee.com/forum/icon_wink.gif[/img]
SteveComment
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Found a web site of
Found a web site of a Type XXIII in 1/72 scale, but it is based on a vacuform kit produced by one of the clubs members. The price is a bit steep, but it is possible and maybe you can use the pictures for ideas or inspiration!!!!!
Best to you, Rick aka the Slugejudge
Site is slow to load]http://www.rcsubs.wz.cz/index.php?sid=modely#mala23[/url]
Here is the reply to my inquiiry]http://www.subcommittee.com/forum/icon_smile.gif[/img] .
If you need more information please don't hesitate to
contact me.
Best regards,
LiborComment
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I am in the midst
I am in the midst of converting the MPM Type XXIII into a static dive sub using a RCABS system, 4ch ESC, 3 servos with micro pump. I commissioned to have the WTC & fabricated parts made & will post photos once I get them back for final assemly in the coming weeks.
Its not impossible to do as you will see by following the CZ lead & cut the hull in half behind the tower. Front half will be my WTC.
This will soon join my 1/72 Revell Type VIIc/41 static diver, Flower class target & S-boat.
Edited By herrmill on 1158839103Comment
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Steve,
Adam was kind enough to
Steve,
Adam was kind enough to have built me a WTC just for this same boat. I installed the equipment.
I tested it in the small 1/144 type 21 with excellent results. when I have time I have to build the SN 23.
Here's a link to the SP thread called pocket subs. There's a video there as well somewhere of the boat in action.
It can be done. I would bet a static diver is not out of the question as Adam has demonstrated well.
Hope this helps.
http://www.subpirates.com/viewtop...art=270
steveComment
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Warpatrol,
I have been tinkering on
Warpatrol,
I have been tinkering on the Special Navy 1/72 U Boot XXIII also. The largest WTC that I could fit in an unmodifed hull is 1.500" OD lexan tubing X 10.000" in length. You can also squeeze in any cylinderical object, batteries, propel tank or whatever that does not exceed 0.585" OD underneath the lexan WTC in the lower section of figure-8 shaped hull (Tight Fit).
Had originally fooled aroung with using a refillable butane cigarettee lighter, charged with propel as a storage tank and valve. Now playing with small copper tank.
RickComment
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Steve - Thanks for posting
Steve - Thanks for posting the link to your 1/144 XXI model which uses a WTC made by Adam. I have already seen your video and read the thread about it a couple months ago, but thanks anyway.
Herrmill and Sludgejudge - I have drawn up plans for the 1/72 XXIII using a 4-channel receiver, RCABS-R ballast system, 3 servos, speed 250 motor , ESC, APC-4, clippard valve and a micro air pump.
RCABS-R bladder sits in the center section of the main WTC which is 11" long OD 1.375" and 1.25" ID (sits close to the top of the hull) and is split into 3 sections. Directly underneath that would sit a second battery WTC (holds 6 AAA batteries in series)which is also 11" long .625" OD and .50" ID. A revision design showed that it may be possible to enlarge the battery WTC slightly to allow 6 AA batteries to fit inside it. Two pressure chamber tubes (for the RCABS-R) ran parallel along each side of the battery WTC, also about 11" long .375 OD and .25" ID. System voltage would be 7.2V
I've changed the drive motor and other components in the design a few times also.. I worked on this design in May and June, but have not done anything more with it since June. Guess I prefer to work up a design on paper before I even purchase a model to see if it is even worthwhile attempting..
Now that I see Special Navy may be releasing a 1/72 Type II in February....I might wait for that, as it would be nice to build a WTC system that would work in BOTH of these models. Anyway the recent purchase of a new laptop computer (which cost too much money) for business use has put RC sub model building on hold for a while, so I have time to wait for the new Type II.
Sounds like Herrmill, Sludgejudge and I are on the same path anyway with the little XXIII, so that is kinda cool
You two guys will probably have yours operating and in the water before I do. By the time mine is done, I'll have to add a functional raising schnorkel, periscope and firing torpdoes to try and one up you guys! lol
SteveComment
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