Type XXIII Special Navy RC

[warpatroller]

[color=#000000]Hello everybody!

I am new to this forum, though I have been reading some of the threads as of late. I have never built an RC sub before, but I have built scale models in the past, which leads me to the subject of this post.

I have seen various threads about converting the Revell 1]http://www.subcommittee.com/forum/icon_smile.gif[/img]

Steve

P.S. the 1]

[aeroengineer1]

What is the max clyinder

What is the max clyinder diameter that could fin inside the model? I am making a wtc that is 1.75" diameter and about 11" long. It might work for you application.

Adam

[warpatroller]

Adam,

Not sure if your WTC

[color=#000000]Adam,

Not sure if your WTC would fit inside the model...it would be close though! I currently do not possess the model yet, but I do have the measurements of the model and only know that the length (18.9") is accurate, if the model is to true scale based on dimensions of the real full size boats, then the other dimensions should be accurate as well.

1]

[aeroengineer1]

at a length of 18"+

at a length of 18"+ I think that it might be a doable thing. You can get lexan that is 1.5"od and 1.25"id. Even if the plastic were 0.050" thick this would still work. the 2" of extra length I think would be a great advantage over what I am trying to do. I think that it is very doable, though you migh not want to try doing it as a first effort. The rudder connection will be tricky, you would probably have to go with 1/16th shaft or smaller, and the stern planes perhaps might be a little easier.

Adam

[sam reichart]

Hello everybody!

I am new to

[color=#000000]Hello everybody!

I am new to this forum, though I have been reading some of the threads as of late. I have never built an RC sub before, but I have built scale models in the past, which leads me to the subject of this post.

I have seen various threads about converting the Revell 1]http://www.subcommittee.com/forum/icon_smile.gif[/img]

Steve

P.S. the 1]

Steve-
I have both of the boats you mention. On the OTW model, there is plenty of room for linkages inside the stern of the boat for rear dive planes and rudder.

If you are looking for scale effects with the stern linkages on the Special Models XXIII, there's not a whole lot of space in the back for them. I might even suggest forgetting the stern planes, and hook up the bow planes if you can arrange a forward control surface exit from the WTC.

[warpatroller]

First off, let me thank

First off, let me thank both Adam and Sam for much appreciated input on this crazy idea of mine!

I was in a local hobby store today and found out the servos I would need for this little project cost about $25 each versus only about 10$ each for bigger ones. The smaller the servo the more expensive they are apparently.

Adam, you mentioned that the sub you are working on is even shorter in length than mine...what is the length of your sub model?

I think the biggest technical obstacles to my project would be: rigging up an internal linkage to actuate the rudder in such a narrow tail. The OTW XXIII model uses a little bell crank lever attached to the top of the rudder shaft (have not seen a photo of how the linkage connects to it though). Maybe I could do the same but on a much smaller scale of course, 1/3 the size approximately; then fitting a drive motor and two micro servos with shafts for all three exiting the rear of the WTC (madness eh lol). Or like Sam suggests just the drive motor and one servo in the rear for the rudder only..making only the bow dive planes functional. Sam, do you have a photograph of the rudder linkage connection in your OTW XXIII that you could post?

Bladder ballast system or a motorized piston ballast system made from a small syringe maybe to make the sub dive and surface..

I did some reconnaissance at the lake I would run it in today and I tell ya, it sure is mucky, a fair amount of algae in the water, I bet a Revell VIIC with brass or wooden deck flood holes would get all clogged up with crap in this lake! I think further from shore the water should probably be less dirty though. Probably be safer to run a little sub like this in a swimming pool.

I have another crazy alternative project in mind, that might be a little easier.. It is not a sub, but a 1/72 German E-boat.. I'd put 3 electric motors in it to drive all 3 props and have all 3 rudders functional! This model is approximately 18" long and 3" wide. Or more sanely, to only have the center prop motorized and only the center rudder functional..

Steve

[JWLaRue]

Steve,

Depending on how much space

Steve,

Depending on how much space there actually is......you could also use a timing belt (toothed belt) and associated toothed pulley. Also a gear rack with small pinion would work too.

-Jeff

[kurt moller]

Hi Steve, I'm about half

Hi Steve, I'm about half way thru building the "Special Navy" type XXIII. For what you get in the box, it is a little pricey, just so you won't be too surprised. True to scale, this boat is about one third the length of the Revell kit. I'm sure it can be made to work using RC, but it will take some real modifications to do it. The combination of it's relatively small size and the fact that it is a simple two piece hull design will keep you thinking. You might try contacting Dave Welch to see if he has any ideas!! Good Luck Steve

Regards, Kurt Moller

[warpatroller]

Jeff,

I was actually thinking about

Jeff,

I was actually thinking about your idea last night....using a toothed belt and pulley assembly to drive the rudder. And the rack and pinion isn't a bad idea either. Thanks.

Kurt,

I realize the kit only has a two piece hull that is seamed vertically. The sail or conning tower does not come attached to the hull does it? I was thinking of making it so that the entire sail and the rear hump behind it can be removed from the hull along with being able to remove the "Balkon Gerat" echo chamber piece under the bow and perhaps the rectangular planking strip along the top of the hull to allow access to the inside of the model for maintenance.

Even better though would be to cut the hull so that the upper part can be separated from the lower portion. Look at the photos below of someone else's build of the kit as a static model. The hull could be cut so the light gray portion can be lifted of the lower dark gray portion of the hull..it could be secured to the lower part of the hull by screws maybe, in a similar fashion to how people have screwed the upper decking in place on RC conversions of the Revell VIIC. In these pics it almost looks like the light gray upper portion of the hull is a separate plastic piece that was layed over the assembled hull much like a saddle. Can you confirm this?







You also said that the XXIII model is only 1/3rd the length of the Revell VIIC..that cannot be, as the Revell model is only 36.6" long and the XXIII is suppose to be 18.9" long, which is slightly longer than 1/2 the length of the Revell.

How do I contact Dave Welch?.. as I'm not sure who that is (me being new on here and such).

Steve

[aeroengineer1]

Hey no problem. My boat

Hey no problem. My boat is the new Revell U212a and it is about 16" long and a beam of about 1.9". As for if your boat is possible to do in RC, I would say yes, but I would recommend that you try boat that you did not care so much about first. I only say this because my first effort was successful, but I learned a lot that I am incorporating into my next boat. If you were to do a Trumpeter Kilo first, you would get the feel of working with small and you would gain valuable experience (ie you make your mistakes on the boat that does not matter). As for the rudder, you can get some small gears from slot cars that might do the trick just fine.

Also, be prepared; your small boat is going to cost you just as much as a larger boat. This is an expensive hobby. I think that the wtc of my U212a is going to cost in the area of $250-$275 all fitted out. Those are my 2 cents. Do not be discouraged, do you homework (which may include building a boat that you don't care about) and then build the Type XXIII. By that time I might have miniature wtc to offer or I might be at a better point to help you build yours.

Adam

[warpatroller]

Adam,

I just took at look

Adam,

I just took at look at your thread on the Revell U212 that your building (including the one on Subpirates)...very interesting. I will follow along on it. The Trumpeter Kilo kit is about the same size as your Revell U212 kit?

Speaking of Trumpeter, today in a hobby store I saw the Trumpeter 1]http://www.subcommittee.com/forum/icon_biggrin.gif[/img] haha. Maybe a documentary film crew could come to the lake and they could try to raise it.

Steve

[warpatroller]

Adam,

I just looked at your

Adam,

I just looked at your user profile and it says your in Mesa, AZ....small world, I am in Scottsdale! The "lake" that I was thinking of running my prospective boat in is over by Via De Ventura and Hayden Road. Although there is a sign there that says "No Boating unless via permit"...I assume they are referring to boats with people in them, ha. Where do you run your boats at?

Steve

[aeroengineer1]

Hey good to hear that

Hey good to hear that you are close. Send me an email with your ph# and we might be able to get together and chat. I am trying to raise the interest in submarining here in AZ. I will show you what I have, and as far as that pond, I would not want to try it there. There is a lake off of dobson road and baseline that seems to be much better. Good to find another submariner here in the desert.

Adam

aeroengineer1@hotmail.com



Edited By aeroengineer1 on 1140597126

[warpatroller]

Adam,

I sent you an email

Adam,

I sent you an email tonight.

In case anybody wants to see a killer build of this XXIII, check out the images below....If I could make this thing RC, I'd paint and detail it to look along these lines...again though this particular model is static display only.







This model looks like you could almost climb into it and go schnorkeling around in a bay somewhere. Check out the detail on this thing!

Steve

[redboat219]

Hi Warpatroller,
You might want

Hi Warpatroller,
You might want to try out this site, they have dynamic diving 1/72 Type 23.

http://www.rcsubs.wz.cz/index.php?sid=modely/det_23

Red