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        Discussion Type 212 scale 1:96

#1 MFR May 17, 2012 10:21 AM

Type 212 scale 1:96
 
It seems that i've done nothing during the last period, but else is true, i got me a 212 scale 1:96, which i pressed through leaving the type XVIIb at a hold.

I'll show you guys some vid's how it's coming along.

Type 212 part 1 (5 min 25 sec)


The early stage building up the boat.

Using dual rate with the type 212 (3 min 19 sec)


Solving some issue's with the deflection of the vanes during high speed runs.

Type 212 part 2 (7 min 41 sec)


Putting all components together.

Type 212 part 3 (8 min 15 sec)


On of the first tests to see if the ballastsystem will work.

Technical stuff inside the 212. (2 min 50 sec)


I've never worked with a WTC because all my boats are dryhulls, a complete new learningcurve for me.

Type 212 part 4 (2 min 47 sec)


First attempt to get me a good balance, the foam still outside the sub.

Type 212 part 5 (2 min 55 sec)


Placed the foam inside and making some final adjustments with lead.

I know these are a lot of vids in one time, but starting up a complete buildingthread will take too much time for me.
This weekend i'll want to make the maiden of the weather is ok, she's charging
up now for the event.


Greetings Manfred.

#2 asd9000 May 17, 2012 02:17 PM

Its amazing to watch your videos it reminds me of being a little and being aw stuck when I saw a cool toy. This like all your subs is no exception :D

keep up the good work it looks amazing.

#3 MFR May 18, 2012 04:58 AM

Thanks for the compliments, like every sub i build i always give my best shot at it, this type 212 sneaked through between building the type XVIIb.
Took some more time than estimated due to some technical adjustments, like i said before this weekend i'll take the plunge into the open water.

Greetings Manfred.

#4 Reckless May 18, 2012 11:08 PM

"technical adjustments" ..

you mean completely going nuts on the exterior details and partially re-engineering the SD?
(refering to the wayyyy longer more detailed build thread on caswells forum :D )

your work is always awesome .. we will wait as long as we must to see it :D

#5 MFR May 20, 2012 01:52 PM

Ok, ok, i turned her a little bit inside out, it's a nice kit and adding some detail was a bit of a challence on this scale.
Re engineering the WTC was a differend story, the good basic layout was allready there, only had to add some items to get the system running the way i like it.

Yesterday i did the maiden, unfortunally something went wrong with saving the video's so i made a slideshow of the pictures, enjoy.

Type 212 part 6 (2 min 24 sec)



Greetings Manfred.

#6 MFR May 29, 2012 01:34 PM

Yesterday whe had our annual subsail meeting, a fellow builder made a nice vid from the meeting, since i was to busy with running my zippy 212, he managed to catch it by video, enjoy

impressie subsail (4 min 4 sec)



Greetings Manfred.

#7 HeavyCruser9 May 30, 2012 07:03 AM

Yeah those 212's fly! My mate Chris (aka Oztruck) has one and it is a missile underwater!

Yours looks like she will get along pretty sweetly also!!

Cheers Bruce

#8 MFR Jun 06, 2012 10:56 AM

I've seen Chris his 212 on vid, it's pretty quick, from what i know from him she acts like a torpedo on full throttle.
I run mine with limited power and deflection on the rudder vanes, otherwise i can loose control at high speeds.

After the subsail i took her apart for adding some claws to this little critter, for now it seems that the second design is working, see for yourself.

Type 212 part 7 (6 min 19 sec)



Greetings Manfred.

#9 MFR Jun 10, 2012 08:30 AM

I'm up and running with the internals and the rebuild of the WTC, due to adding the launchers i had to modify some things, pictures.

http://i276.photobucket.com/albums/k...2/b8c518b5.jpg

Adding those launchers trigger a complete event, by shoving the WTC backwards i managed to fit them in.
By doing that i had to modify all connections to the WTC.

http://i276.photobucket.com/albums/k...2/7f68d870.jpg

First i hooked up the two servo's which control the lauchers seperately.

http://i276.photobucket.com/albums/k...2/64770d96.jpg

Replaced the on/off switch and chargingplug to the rear dry part, there was allready a spare rod present for the switch which i used.

http://i276.photobucket.com/albums/k...2/fa2de1b9.jpg

http://i276.photobucket.com/albums/k...2/d5a55870.jpg

http://i276.photobucket.com/albums/k...2/d5a55870.jpg

Some more items had to move forward, like the connection for fastening the upperpart, the inlet for the pump and the inlet for the ballasttank.

http://i276.photobucket.com/albums/k...2/3501c735.jpg

By shoving the WTC backwards i had to shorten the controlrods and propellorshaft.

http://i276.photobucket.com/albums/k...2/9cf6e528.jpg

Placed in the launchers and glued them tight.

http://i276.photobucket.com/albums/k...2/de9d6696.jpg

http://i276.photobucket.com/albums/k...2/4f91dcb3.jpg

Added the toppart to see how much i have to remove from the launchertubes, still have to do that, a job for next week.

http://i276.photobucket.com/albums/k...2/8cf682e4.jpg

A complete view of the modified WTC complete with launchers, i still have to modify some things on the launchers and rebalance the boat.


Greetings Manfred.

#10 MFR Sep 23, 2012 09:06 AM

Back on track with the type 212, she was on hold this summer because i had to do some things on my OSA II, last technical thing to do was, making the launchsystem work.

http://i276.photobucket.com/albums/k...2/432ea6b0.jpg

Replaced the filling hoses to the side of the breechblok, stuffed up the old hole at the back with some solder.

http://i276.photobucket.com/albums/k...2/65477707.jpg

The complete set with the filling hoses and nipples, only problem with this kind of nipples is, in Europe you can't get the matching gasbottle for filling the torpedo's.
I decided to make some of my own, this way i can use standard butane lightergas.

http://i276.photobucket.com/albums/k...ps31942b94.jpg

First you take a lighter that you can refill, gently cut out the fillingnipple and rework it so it will fit into the new copper holder.

http://i276.photobucket.com/albums/k...ps63ad494b.jpg

Just to show the difference between both nipples, mine i can use for butane gas.

http://i276.photobucket.com/albums/k...ps4a2b147d.jpg

Last step in rebuilding was, connecting the hoses to the fillingnipple and glue them tight to prevent leaking.

Also made some testtrails inside the shop to see if my modification would work.

Type 212 part 8 (4 min 42 sec)


Next step will be solving the airbubble problem which i encountered during underwater trails during the last meeting, i will take the tubes apart and make some slits, this way the air can escape out of the tube.
Then again i have to test if the problem has gone by doing testtrails in the bath tub, it keeps me busy.


Manfred.

#11 MFR Sep 29, 2012 08:25 AM

Also had to change the tubes, i has a airbubble problem, last meeting i noticed that the boat was off balance when submerged, by standing her on her tail some airbubbles escaped the launchtubes.

http://i276.photobucket.com/albums/k...ps017eac6c.jpg

To counter this problem i took both tubes apart for some treatement, stuffed all the loose parts into a box.

http://i276.photobucket.com/albums/k...ps05fe3e3e.jpg

Took the dremel with a grindingdisk and made some slits on top and below the tubes, so air can escape during submerging.

http://i276.photobucket.com/albums/k...pse745970d.jpg

A dryfitt with a gastorpedo after i cleaned up the tubes, just to ensure they will get out easely.

http://i276.photobucket.com/albums/k...psa362499c.jpg

Rebuilded both tubes and placed them inside the nose of the 212.

And now the fun part, yesterday i did some testing inside the bath, it revealed some problems, still have to tinker them.

Type 212 part 9 (4 min 53 sec)


Manfred.

#12 Greg W Sep 29, 2012 09:13 AM

Very nice work. I do have a question for you. Does the bouyancy of the torpedos themselves effect the trim of the boat? Greg

#13 MFR Sep 29, 2012 10:58 AM

Thanks Greg,

Slowly i'm getting there, about the bouyancy, since you will fill up the torps totally with liquid gas they won't float, the torpedo will be replaced by the same amount of water after firing from the launchtube.
When the torpedo has released some gas it will start to float, no sooner.
This, in theory will not influence the balance of your boat, i only have to take account for the new position of the breechblock when fired, but it will reveal itself during the next testingstrails.


Manfred.

#14 MFR Sep 30, 2012 12:36 PM

I spent some more hours inside the shop to solve some problems, fixed the leak, and tried another testrun in the bath.
Only made one attempt, and it worked just fine, now it's time to rebalance the boat and try some shots while being submerged.

Type 212 part 10 (1 min 31 sec)



Manfred.

#15 CarreraGTSCS Oct 06, 2012 10:03 PM

That is too cool. Nice work.


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