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Author Topic: Darnell Type 7 .  (Read 9406 times)

dave301bounty

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Darnell Type 7 .
« on: January 12, 2012, 06:08:40 PM »

Totally new to this ,Ive got a hull , just basic ,bought a acrylic tube  for the electrics ,now I am stuck ,as I have no Idea where to go ,inside the hull is the makers name and they have been bought out , so can anyone help me as to what happens next ,really at a loss ,can manage a yacht easy ,but this is a compleatly new and looks interesting  by what ive seen on this site ,so please can someone help and point me in the right place .thanks in anticipation,Dave .
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batfish

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Re: Darnell Type 7 .
« Reply #1 on: January 12, 2012, 11:07:26 PM »

Models by design now produce the old Darnell hulls.

Also if you read through the thread, Otw vanguard build .There is alot of info regarding where you go, Designning and creating an Rc module.

I'm sure the chaps will help you out if stuck.
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Davy1

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Re: Darnell Type 7 .
« Reply #2 on: January 13, 2012, 08:36:36 AM »

Welcome to a fascinating (and sometimes frustrating!) branch of the model world.
Hope this link and Mark can help you on your way:
http://associationofmodelsubmariners.com/can-i-build-a-working-model-submarine.php

David
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dave301bounty

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Re: Darnell Type 7 .
« Reply #3 on: January 13, 2012, 09:56:46 AM »

 Friday  the 13 th  and I dont go out ,so on this early . Well thanks for the replys  but I am in the dark ,,ive got this acrilic tube ,it fits the gear that came with the hull ,so that I assume is the start for a water tight compartment to hold the electrics etc , then do I have to use the same ,only blank off to use a ballast system ,like to pump water into /out of tube ,what i need to help me ,can anyone give us /send us ,some of the drawings that are for beggineers as I really am ,not kidding ,clueless ,the list of things I can fix /repair is big but this is a very different item .the pics ive seen of what you guys are into ,VERY professional .,could be M O D for all I know . thanks in anticipation,Dave .
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Patrick Henry

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Re: Darnell Type 7 .
« Reply #4 on: January 13, 2012, 10:11:31 AM »

Hi Dave,

Best place for you is the AMS forum and the website...

www.theassociationofmodelsubmariners.com for the forum.... www.associationofmodelsubmariners.com ...for the website.

Have a good look around, join the forum (it's free and you don't really need to join the AMS) and then ask your questions on there. There's guys there that have built nothing but subs for donkeys years, and have made all the mistakes there are to make...including me. I can make mistakes like you wouldn't believe...

There's plenty of pictures on both the website and the forum detailing what you need to know...anything else, then please don't be afraid to ask.



Rich


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dave301bounty

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Re: Darnell Type 7 .
« Reply #5 on: January 13, 2012, 10:23:08 AM »

Rich ,Thanks f,that  but these web sites ,and their loggin in  and trying to do all these passwords etc ,really gets to me ,can i use the same as on here .Dave
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Patrick Henry

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Re: Darnell Type 7 .
« Reply #6 on: January 13, 2012, 10:28:56 AM »

Of course you can mate, you can view the website without the need for passwords, etc...the forum you can use the same username and password as you do on here.



Rich
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Subculture

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Re: Darnell Type 7 .
« Reply #7 on: January 13, 2012, 10:45:14 AM »

Unfortunately there are few plans as such out there for r/c model submarines, and none that I know of for your boat. Most submarine modellers that scratchbuild tend to work from the drawings used for the fullsize counterparts.

A Canadian modeller, called Greg Sharpe, produced a set of drawings for a generic WTC/cylinder /dive module. The design was based on a gas ballast system, which could be adapted for different boats, but it would require modification of the basic design for a Type VII. I'm not sure about the current availability of these plans to be honest as his website is now inactive.

Also the old nexus plans are still published and available at myhobbystore- http://www.myhobbystore.co.uk/browser/117/submarine

I don't think any of those will be much assistance to you for a Type VII conversion though.

There are some excellent publications by Traplet for submarines-

http://shop.traplet.com/product.aspx?c=292

http://shop.traplet.com/product.aspx?c=2634

http://shop.traplet.com/product.aspx?c=295

http://shop.traplet.com/product.aspx?c=294

The last book will probably scare you half to death when you start reading it, as there are a lot of mathematical equations, and it does assume a certain amount of engineering knowledge. Nevertheless, it is an excellent reference.

Another chap on here, nom de plume 'flying sparks' is converting an old Darnell U47 with his own dive module, and is using a Engel piston tank for the ballast system. Not sure about current progress, perhaps you can share notes.

Finally, have you considered cutting your teeth on something smaller and simpler? A dynamic diving boat perhaps, which will teach you about sealing the boat reliably, both hatches and shafts etc.

batfish

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Re: Darnell Type 7 .
« Reply #8 on: January 13, 2012, 12:22:04 PM »

Of Course you could possibly ask Chris Cloke from sheerline model submarine's if he would produce a Wtc for you.
If Memory serves he did a Type 7 around same size as the old Darnell you have at present.

Send him an email or Possibly Pm him on here, User name is Sheerline.

http://sheerlinemodelsubmarines.com/

Chris is a really nice guy to talk to and he's also a modeller himself so wont mess you about and he comes up with some cracking ideas.

regards
adam
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Re: Darnell Type 7 .
« Reply #9 on: January 13, 2012, 01:22:15 PM »

When Sheerline was Eden models under Dennis Cater, he used to advertise the dive modules separately.

There is anther outfit called A1 down under models who I've seen in the model press, but they don't seem to have any presence on t'internet.

Other producers of larger dive modules  suitable for a Darnell Type VII are OTW, Ron Perrott and Caswell (U.S based).

Patrick Henry

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Re: Darnell Type 7 .
« Reply #10 on: January 13, 2012, 03:14:00 PM »

Or you could always make your own wtc Dave...be a lot cheaper. Mark at MMB will make you up the required end caps, and you can soon knock up a equipment tray out of styrene sheet. Use a centre placed bag for a ballast tank, car windscreen washer pump to fill/empty it with water (same principle as my Neptune uses, and that works a treat) and you're well on the way to building a ballast system.


Rich
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dave301bounty

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Re: Darnell Type 7 .
« Reply #11 on: January 13, 2012, 03:45:44 PM »

Well so far so good ,have taken a lot in ,did,nt know help was so easy to get .who is mmb must try to get the end caps and a base plate or what ever ,,,very bafling ,but i have bought a second hand book will be waiting for that ,,does everyone  go thro this zone of being helpless ?  just surprised that there ,aint much in the second hand game ,early days or what ,..
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Patrick Henry

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Re: Darnell Type 7 .
« Reply #12 on: January 13, 2012, 04:05:21 PM »

Dave, MMB is the mighty Mark's Model Bits...he makes bl00dy good end caps. So does my old mate Paul (Turbulent on here)...Mark makes resin caps, Paul makes turned plexiglass ones...yer pays yer money, yer takes yer choice.

An equipment tray is what it says it is...basically a styrene tray that runs through the WTC onto which the radio gear/motor/etc is mounted on. You can use styrene, perspex, even wood...it doesn't really matter.

And yes, we all go through the helpless stage...I was lucky when I started building subs, the late great Bernie Wood became my mentor, he showed me  the basics, how to do this and that, and gave me a good grounding in the hobby.

People will tell you you need vast amounts of equipment to build a working sub...rubbish, I say. My boats are built on an old school desk in my bedroom with the bare minimum of tools...if you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.


Rich
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salmon

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Re: Darnell Type 7 .
« Reply #13 on: January 13, 2012, 04:23:06 PM »

Rich,
Can I use this as my tag line? "if you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub"
I love it! and it is true....
Tom
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Patrick Henry

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Re: Darnell Type 7 .
« Reply #14 on: January 13, 2012, 04:25:48 PM »

By all means, Tom...Bernie came out with that one day whilst we were discussing something over a pint or six. As you do...



Rich
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thegrimreaper

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Re: Darnell Type 7 .
« Reply #15 on: January 13, 2012, 04:42:00 PM »

@ dave301bounty your only in Liverpool dave if your interested we could arrange to meet up at new brighton in the weeks to come I live in Ellesmere Port could bring along my Akula for you to look at and also my new WTC that I am building and altering as I go (made it to small didnt I) give us a shout on here or PM me if you like

Regards Mark
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Re: Darnell Type 7 .
« Reply #16 on: January 13, 2012, 04:59:48 PM »

what was too small, Mark?

thegrimreaper

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Re: Darnell Type 7 .
« Reply #17 on: January 13, 2012, 05:26:03 PM »

the first section of the WTC for the pump and radio gear was a hell of a tight squeeze sooooo I recut the rack and used a bigger piece of tube looks a bit better now not so cramped in their picture will be up on the topic a bit later on. got to resource some slides for the rack unforunatly B & Q out of stock of the 6mm section I need ahh well.

Regards Mark
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Re: Darnell Type 7 .
« Reply #18 on: January 13, 2012, 05:45:59 PM »

You could have mounted the pump vertically, with the gears pointing downwards- that helps it self-prime.

batfish

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Re: Darnell Type 7 .
« Reply #19 on: January 13, 2012, 05:51:45 PM »

Hi Dave,

Regarding tech racks / Rc gear mounting plate.

Try these guys for pvc sheet, resonable prices and good service.
http://www.directplasticsonline.co.uk/PVCSheet

As the man above said Endcaps, http://marksmodelbits.com/ ... They are good price wise.
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salmon

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Re: Darnell Type 7 .
« Reply #20 on: January 13, 2012, 09:47:13 PM »

What was Greg Sharpe's website? There is a site called waybackmachine http://www.archive.org/web/web.php it may have captured his site.
Peace,
Tom
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Re: Darnell Type 7 .
« Reply #21 on: January 13, 2012, 09:54:18 PM »

From my mark one memory bank-  http://www.deepseadesigns.net

The plans were also published in back issues of the Sub Committee Report, unfortunately I can't remember which issue, it was several years ago.

salmon

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Re: Darnell Type 7 .
« Reply #22 on: January 17, 2012, 11:43:46 PM »

Unfortunately, it did not pull up any info on it.......
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kazzer

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Re: Darnell Type 7 .
« Reply #23 on: January 19, 2012, 01:16:35 PM »

If you haven't figured out the  WTC yet, look at this for an option.
http://www.caswellplating.com/models/sub-drivers.html
SDK352 Sub-driver 3.5"/2 KIT Generic (Includes 2 motors, 1 servo, gas saver) Snort ready
   
Download this file   - http://www.google.com/url?q=http://support.caswellplating.com/index.php%3F/Knowledgebase/Article/GetAttachment/228/131&sa=U&ei=OxcYT836Cc-Jtwe5iai-Cw&ved=0CAYQFjAB&client=internal-uds-cse&usg=AFQjCNHLmezNhGy813Hon962TfybUKr3pQ
The Motor bulkhead is assembled with suppressed motors, the equipment try is there, Snort ready (just put the pump in), motors geared downm gas back-up, blow/vent valves etc.

This will save you hours and hours of fiddling and messing, and you probably have enough to do just building the model.


 


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BrianB6

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Re: Darnell Type 7 .
« Reply #24 on: January 24, 2012, 01:52:50 PM »

Is there a UK Seller for Caswell Plating Sub Parts, or only US.

Regards

Nexus6
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