USS Haddock SSN 621 in 1/350, 2,5 CH conversion

[zhuravlik]

Yesterday I had a chance to do some sea trials with the little Haddock. Blowing föhn carried fair temperatures but rendered the usual basin unsuitable so I headed to the nearby pond wich was somewhat sheltered from the surrounding trees. Now i must say that get rid of all the bubbles at this scale is a friggin' nightmare and the shallow declining shore made it a nearly impossible task. I had to drag it around with the tip of the service fishing rod! Succeded to achieve a slightly positive balance with about 5° bow up attitude as an insurance, i hitted the turbo button and after a couple of meters down she went. I have to remove the function that shuts down turbo mode when you are using steering channel as it tends to emerge when you steer it around. Whith that bow up attitude was easier to go back till she reach your wished depth and then blip the turbo button to maintain depth and speed. Unfortunately i managed to loose the prop: she detached itself from the motor shaft and gracefully sank before my eyes. I'm rebuilding it, will be better and glued with anaerobic adesive.

[He Who Shall Not Be Named]

Can't resist to the voice of HWSNBN!
Changed idea and wheathered it a bit with watercolour pencils. Added some other decals too. It was too... Tube?

https://scontent-mxp1-1.xx.fbcdn.net...66&oe=5AB1D89D
https://scontent-mxp1-1.xx.fbcdn.net...ae&oe=5AC8FE88

Francesco.

You've breathed more life into the subject. Much improved presentation, sir.

David

[zhuravlik]

Can't resist to the voice of HWSNBN!
Changed idea and wheathered it a bit with watercolour pencils. Added some other decals too. It was too... Tube?

https://scontent-mxp1-1.xx.fbcdn.net...66&oe=5AB1D89D
https://scontent-mxp1-1.xx.fbcdn.net...ae&oe=5AC8FE88

Francesco.

[zhuravlik]

David,
your information sharing attitude is remarkable indeed: " repetita juvant" they used to say!
I didn't wanted to use all the decals of the Riich LA decal sheet, only sail and hull numbers were surplus. That kit is really well printed and not particulary cheap.
About weathering, i usually add it after first meaningful and successful sea trials. i usually add some details during overhauls too: Pietro Calvi got her limber holes opened during the second overhaul. After all, a model is never finished. Here in Milan we are masters at keepin working to monuments for centuries: the Duomo's factory is still very busy!

[He Who Shall Not Be Named]

Dave, are you fishing for compliments? :) I know every friggin detail of your works!! Every photo of your works is downloaded and stored while i'm giggling.

Here it is, finished with Tamiya flat clear and just sail numbers from Riich Los Angeles abundant decal sheet. Spinner was turned down to a more pointy look and prop was painted with X-32 titanium silver. Hull was painted with a mix of flat black, XF-17 sea blue and XF-19 sky grey while flat black was used for anti-skid walkway. I will probably add some details and some weathering but at the moment I'm satisfied. I like to add weathering as i use the boat. :)

https://scontent-mxp1-1.xx.fbcdn.net...f8&oe=5AB759CC
https://scontent-mxp1-1.xx.fbcdn.net...e4&oe=5AB68275

Thank you Scott, for the photo relay service!

Sorry, I tend to play on the over-kill side of information sharing -- don't mean to be pushy.

That little THRESHER of yours looks good. Let's see shots of the marked up and weathered item.

David

[zhuravlik]

Dave, are you fishing for compliments? :) I know every friggin detail of your works!! Every photo of your works is downloaded and stored while i'm giggling.

Here it is, finished with Tamiya flat clear and just sail numbers from Riich Los Angeles abundant decal sheet. Spinner was turned down to a more pointy look and prop was painted with X-32 titanium silver. Hull was painted with a mix of flat black, XF-17 sea blue and XF-19 sky grey while flat black was used for anti-skid walkway. I will probably add some details and some weathering but at the moment I'm satisfied. I like to add weathering as i use the boat. :)

https://scontent-mxp1-1.xx.fbcdn.net...f8&oe=5AB759CC
https://scontent-mxp1-1.xx.fbcdn.net...e4&oe=5AB68275

Thank you Scott, for the photo relay service!

[zhuravlik]

Tom, i've been using this Lego setup since ages winding coils for my micro planes. It's really just a geared down motor and battery to wind coils. I i made two spools, one for hollow coils (3mm ID) and the other one for solid coils. https://www.rcgroups.com/forums/show...go-coil-winder Source of enamelled copper are wall watches, you want your coils to have about 100ohm impedance. If you are interested in magnetic actuators, and i think you should, just look on Scratchbuilt Indoor and Micro Models forum on RCG, very informative write-ups here!

[trout]

Tell me more about your Lego setup. I am curious about your windings and what you are doing.

[He Who Shall Not Be Named]

Thank you sir! No peristaltic pumps here, sir, just good-ole dynamic diving. But, maybe , you are referring to the thing you can see in the upper right corner: it's Akula's 30 mm wtc, it varies it's volume by moving the fwd bulkhead fore and aft. Below that you can see the new, high capacity 23mm diameter 2,5 ch wtc. Here too the fwd bulkhead (aka trimmed syringe piston) can be moved but manually, to assist in trimming and compensating water variation density wich at this scale is quite important. And below that you can see the first little 2,5 ch wtc wich is 19,7 mm diameter and holds a small 70 mAh battery.
Now, something cool about those small bang/bang TX/RX sets is that you can easily waterproof TXs and swim with your creations

Here are some of my efforts in the 'small' r/c submarine category. All WTC's are of 1.25" diameter!



















Some video of the little SKIPJACK:

https://www.youtube.com/watch?v=4Vk3n3qXOso&t=54s

https://www.youtube.com/watch?v=NXnW9Vheorg

And a quick look at how the static diving SubDriver looks:

https://www.youtube.com/watch?v=Lu6x3vI2Yek&t=33s

Currently I'm back to work on perfecting the small, static diving type SubDriver .... Hang in there William!



David

[Scott T]

Copied address from other site and uploaded full size.


Not my work .

[zhuravlik]

Thank you sir! No peristaltic pumps here, sir, just good-ole dynamic diving. But, maybe , you are referring to the thing you can see in the upper right corner: it's Akula's 30 mm wtc, it varies it's volume by moving the fwd bulkhead fore and aft. Below that you can see the new, high capacity 23mm diameter 2,5 ch wtc. Here too the fwd bulkhead (aka trimmed syringe piston) can be moved but manually, to assist in trimming and compensating water variation density wich at this scale is quite important. And below that you can see the first little 2,5 ch wtc wich is 19,7 mm diameter and holds a small 70 mAh battery.
Now, something cool about those small bang/bang TX/RX sets is that you can easily waterproof TXs and swim with your creations

[He Who Shall Not Be Named]

Yep, the usual issue...
Posted the same Photos on Dive in to submarines group on FB:
https://scontent-mxp1-1.xx.fbcdn.net...59&oe=5AD1B740
https://scontent-mxp1-1.xx.fbcdn.net...44&oe=5AC43FB0

Very, very interesting work there. Are you using a peristaltic pump?

David

[zhuravlik]

Yep, the usual issue...
Posted the same Photos on Dive in to submarines group on FB:
https://scontent-mxp1-1.xx.fbcdn.net...59&oe=5AD1B740
https://scontent-mxp1-1.xx.fbcdn.net...44&oe=5AC43FB0

[trout]

I understand you have had an issue with the photos. When I look at yours, the pictures are small. Any chance of getting larger ones uploaded?

[zhuravlik]

I think i went a bit over the board with this... I've recontoured the bow, installed a new coil, installed movable stern planes, made a new micro wtc with a 20 ml syringe wich can hold a 550 mAh lipo, installed those ears on the sail, scribed a couple of details on the deck and done safety rail with copper filament. Just shot some primer: scribings are too deep but clean enough, they will be partially filled by clear coatings.
I'm very happy with the new wtc: can slide back and forth and with adjustable buoyancy makes finding correct attitude and balance a snap. All i had to do was to guesstimate a foam block dimension, shape and glued it and move a couple of times the front manual piston.

This flexibility allows me to convert almos all 1/350 nuclears and even the kilo: when there is no space for a magnetic rudder i will use a stern thruster for steering.
I've picked up Airfix Trafalgar as next project, already found a perfect 5mm coreless motor and done the coil. Probably I will be able to retain the original moving stern and front planes, stay tuned!