Russian Rocketboat OSA II

[MFR1964]

More a weapon of mass destruction David, it will become usefull to clear the pond from other drivers, so i can enjoy driving my subs alone in silence.
How?, i'll show what i allready have done to forefill this goal.



This boat has a nasty sting of four rocket tubes, the idea popped up to make it functional with live rockets, this is the first prototype i've made.



Removed the top tube to show what's inside, a mechanism for opening and closing, the spring on top is now extended to keep the lid shut.



By pulling on a string at the back you can compress the spring and the lid will open.

Also made a vid to show how the mechanism will work in real time, because this was still a prototype i tried to keep it simple and controlled it by hand.


Manfred.

[He Who Shall Not Be Named]

This thing is going to be pure terror once under way.

David

[MFR1964]

After finishing up the basic things on the hull i started with building up the electronics, used a old receiver for testing.



Made my own battery packs, tried to keep them as light as possible, but with enough juice to get me a nice run.



From the outside it seems to be a cannon turret but it's hiding something.



You can lift out the centerpart to reveal the on/off switch and the charging plugs, i know that they are not scale yet, but i now have enough info to build some scale one's, a russian modelbuilder profided me with some nice drawings and pictures.



After testing the basic things i started with sanding the upperdeck to get the balcony's flush with the deck, also filled up some old holes with styrene strips and filler, still a long way from shooting some primer on the deck.


Manfred.

[MFR1964]

Brett,

I've made mine at scale 1:40, giving me a total lenght of 81 cm, 1:72 seems very small to me it will be a challence.
I've added her already a few years ago to the buildinglist, and yes, it will grow each time i add a new build, you have to do something with your spare time.



After the balcony's i started with the exhaust and coolingwater outlet.





There are a couple of holes present at the hull, made them from brass tubing and soldered a flange onto them, secured them with 2K glue to get a watertight connection.



I decided to take a run at making the cooling outlets functional, by using a simple pump it's possible to show some coolingwater.



Made a inlet under the waterline to feed the pump, by making a electrical connection to the main engine i can regulate the amount of water which will come out of the outlet's, slow driving means less water, running at top speed more water, it has no other function than being cosmetic.


Manfred.

[Snipah]

Hi Manfred, What scale is your OSA?
I would deffinately love to build one in 1/72nd scale. Does the build list ever shorten? lol

Cheers

Brett

[MFR1964]

I never get bored building subs, but once in a while i keep my skills sharp with tinkering on my OSA, each year she's getting better and better, the type VIIC is my oldest sub, rebuilded her 5 times and finished her a few years ago, although finished she never will be with the endless info from the internet.

Thanks, this is only the start, done a lot more last few years, wait and see, those little boats look like wasps with a nasty sting, for controlling the OSA you need at last skilled staff.





The first new things glued to the hull, on my drawings there is a kind of balkony, used styrene strips to imitate that.



All balkony's have reinforcements underneath, so i had to do this four times, when glued tight i made a 45 degree cut at the end of the reinforcements to get it flush to the balkony.





Adding the rim was done by using pre cut styrene strips, this rim is one of the eyecatching things on the hull.


Manfred.

[herrmill]

Nice work! Its the modern equivalent of the OSA that give me concern when & if the balloon goes up in the Persian Gulf. All I can say is I hope we have a lot of anti-missiles on the rails & aircraft in the air when these clowns head out to sea in their modified ski boats.

http://www.businessinsider.com/iran-is-serving-up-a-nightmare-scenario-for-the-us-navy-in-the-persian-gulf-2012-7

[greenman407]

Im glad to see that you have something to keep you busy. It wouldnt do at all to know that you are sitting at home staring at your feet. Great looking U Boat by the way.

[MFR1964]

For those who think why my postings are low, well, there is a reason, during the summertime i always build on my OSA, it's a long lasting project, but i spend three months a year on this boat.
I'll fill you guys in from the start a few years ago,









In this state she was wondering around on the attic for some years, made this model before i got infected by building subs, the hull itself is modified from the PT15, and made shorter to resemble the OSA hull.
The only way to do this right was to strip her down bare to the bone and start all over again, some parts i could re use, others not.



The upperpart was saved, the size is not right, way to big, but that could be modified.



Removed the launchtubes and all other parts from the deck to give me a clear start, the guns will stay for this time untill i made some more scale like gunturrets, still have to do that.



I'm still far away from this result, but it keeps me motivated to get it right.

Manfred.