Started my RC conversion of ROG 1/72nd

[steve nuttall]

I have started the conversion to RC

Here is the forward battery compartment test fit


I finally settled on 1 of 2 options 3 rows of AA NiMh like this
or 3 1100mAh NiMh D cells; any suggestons guys

The hull is big inside; i could simply make 2 pop cans fit together (they can take quite a pressure inside not sure about underwater)


I might just use 2" PVC poolpipe; with custom machined plugs with O-ring seals
As some know i make CNC cut barrels; so stuff like a WTC will be childs play

[steve nuttall]

forgot to add

www.modelbarrels.com
thats my main

forgot to add

www.modelbarrels.com
thats my main page; there is a UBoat page linked to the main

I'm sure going to have fun in my 40ft pool with this Uboat and my Snowberry

[mike byers]

Hi Steve
Not sure about the

Hi Steve
Not sure about the battery, but, I would not count on that soda can taking much external pressure. Give a try, but I would recommend using the PVC pipe with custom machined end plugs.

Just my 2 cents

Mike

[steve nuttall]

Yeah i pretty much thought

Yeah i pretty much thought it wouldn't

but you know; they take a good pressure when they get shakenup

Like soda bottles; the big 2 liter; i have placed dry ice in them with a bit of water; they hit 120lb/sq in before the let go; makes a huge boom and scares the #### out of the other workers around you; LOL

[steve nuttall]

opening up the flood holes
http://www.modelbarrels.com/files/Floodholes.jpg
I

opening up the flood holes

I used a carbide burr; it will not plug up if your run at the slowest speed of the Demel; the flex shaft makes it easier


I found with this much light coming through; opening up with a small rat-tail file is very easy

[anonymous]

Steve,

You need to take a

Steve,

You need to take a look at Dave Welch's WTC made especially for this boat.



I have one of his set ups and it's the only way to go.

david_w43@yahoo.com

here's his email. I have built his Kilo WTC and now the Type 7. For 75 bucks you can't beat it anywhere. He supplies you with a CD with tons of pictures and lists of all the equipment used and where to get them from.

The design is for static diving too. I found out the hard way that the Type 7 is a very bad dynamic diver not unless you want to travel at very high speeds to dive. Not very scale.

Just my two cents but two good ones.

Steve

[steve nuttall]

I'm not to worried about

I'm not to worried about scale speed; this and Snowberry are pool toys for me and the little girl to mess with; I'm seeing/building an interest with her
I also have a SIG Kadet to try her with flying; i was influenced at a young age to be a modeler

If I need to build something scale; I'll pop back to the 1/48th Yamato i have started
Rachel is not interested in that because it is a slow build; this isgoing fast like Snowberry; kids like to see progress

Thanks for the info though

[boatbuilder1]

does dave include the actual

does dave include the actual WTC with End caps along with the cd?

[captain nemo12]

Could metal WTCs (such as

Could metal WTCs (such as cans) affect radio transmittions to the reciever inside the WTC in some way?

[steve nuttall]

I'll run my antenna wire

I'll run my antenna wire through to the hull anyways

[boss subfixer]

Charley,
Yes he does and it

Charley,
Yes he does and it is quite a kit. I don't have mine installed as of yet, I'm just finished up opening all those holes on the hull halves. Lots of hand work drilling and filing.
I going to hit Dave up pretty soon for his Kilo kit.

[steve nuttall]

Ok I started into the

Ok I started into the WTC
2 inch semi clear pipe for the workshop style central vac (normally for woodworking) comes in 36" lengths; i used this as an excuseto buy the whole package for clean up of the cnc machines hehehe

here are a few pics of where I'm up to

Just fits into the hull

Note; the Alum tube will carry the batteries and the push rod will come right out the middle for the dive planes; the hollow tube for the push rod will also hold the Alum tube into the front seal plug of the main compartment; as i intend to pressurize the WTC to about 14psi (1 atm/r)
This will stop water coming inand while the pressure will slowly drop I can refill between runs via air coupling coming through the lowest part of the hull; if the inner parts of the valve are removed; drainage can be made if something gets in

big and long 16"; plenty of room for "stuff"

My front seal; 59c o-ring from the local hardware store; I also got more (smaller) to seal the end of the battery compartment; the hard nylon bar waskicking around in my toolbox for a coons age; along with the Alum tube; this project is great; i'm finally using all my junk up

[anonymous]

Steve,

thanks looking good. Now you

Steve,

thanks looking good. Now you got it.

Steve

[steve nuttall]

hey you got the right

hey you got the right name at birth also; never met a Steve i didn't like

The rear seal is made too; just too lazy to post a pic (plus i have a bad headach) mind a head like mine should hurt

I will keep at this while I have time; I also want to keep Snowberry going too; I want to let my mind wander on this; i find if I look at other products too much I don't create stuff as good as i can (I like to work stuff out myself) I really do think pointing out other peoples ideas is really cool; and sometimes I use part of their approch

I was thinking as this is just a pool toy and will never be more than 40ftaway; i might buy some cheapo delux thing from say Radio Shack and strip out the radio guts; add good NiMh batteries etc; who knows

[steve nuttall]

I never really though about

I never really though about how much water pressure the pool would have at the bottom; but it is not that much

Pressure increases by .445lbs for every foot
my pool is a sports pool; max depth 4ft 3in

Might not even need to pump the WTC more than 5psi