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Author Topic: Red October, as seen in the novel of the same name.  (Read 23556 times)

unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #125 on: January 03, 2015, 09:31:18 AM »

"They call me MISTER Dougnut!"
As above, the three position, power off in neutral Tx switch was to blame. The unit needs to be energized either 'in' or 'out' to work properly. So in went a two position switch and all will be well, when I eventually put everything back into the model. So thats four hours diagnosing a fault that wasn't there :embarrassed: .
Anyway, modified Tx below. The graphic representation of the sub corresponds with 'up-down' periscope  control push buttons and 'in-out' hydroplane control 2 position switch.
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U-33

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Re: Red October, as seen in the novel of the same name.
« Reply #126 on: January 03, 2015, 09:58:16 AM »

Well, Mr Donut...far better to spend hours hunting for a problem that isn't there, than having to find out that there was a problem when the boat is ten feet down and inhaling water quicker than a rock star inhales the white powder. You must be near the cracking open the bottle of vodka time now?


Well sorted, Comrade...the Polit Bureau will be pleased.


Rich
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #127 on: January 03, 2015, 01:47:51 PM »

Well, Mr Donut...far better to spend hours hunting for a problem that isn't there, than having to find out that there was a problem when the boat is ten feet down and inhaling water quicker than a rock star inhales the white powder. You must be near the cracking open the bottle of vodka time now?


Well sorted, Comrade...the Polit Bureau will be pleased.


Rich

The Dead Drop is in the slit in the wall behind the bin, am awaiting contact from Moscow regarding the best tides and moonless nights up at Severomorsk for the maiden voyage...that or our two baths glued together will have to be sufficient ok2
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type82

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Re: Red October, as seen in the novel of the same name.
« Reply #128 on: January 03, 2015, 03:42:33 PM »

The giant bath tub :-))
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #129 on: December 08, 2015, 06:40:06 PM »

In the final stages now. Tidied up the wiring looms, fitted the external antenna pipe, checked all the functions...over and over and over again..then once more for luck! all good, so I proceeded to bolting down the big hatch in preparation for a pressure test. Lid down and 46 nuts tightened later. Tested the system again and one of the piston tanks refused to return to 'surfaced' position!
Much swearing followed, then the technical stuff was tried..stick a screwdriver through the little access hatch and keep tapping stuff till it works... that didn't work >>:-(
So, hatch off and tank out.. can I just say, without too much trumpet blowing of course...that the tank was out in five minutes, due to the modular nature of the installation..well done me O0 . Then I sat on the floor for two hours, staring at the tank and the wiring diagrams, to no avail. I suffer from Wiring Diagram Blindness...this causes me to hand off this sort of job to other, more qualified people usually. This time it was up to me....
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #130 on: December 08, 2015, 06:48:03 PM »

So, I quickly established that the fault was with the tank and not the associated electronic controls, good news. however, all the micro switches seemed to be working and there was good continuity up to the connecting plug. So, the only course of action was to start replacing micro switches, it seemed the only option despite everything.
I had needed to replace a micro switch previously, which had failed, this seemed a good place to start. With that one replaced, back to the sub....yay :-)) . All working. However, the replaced micro switch was still working, with no immediate sign of a reason for failure. However, upon closer inspection the fault was found. This switch is activated by the studding which runs into and out of the piston tank. I had replaced a fairly 'soft touch' switch with a stiffer switch, made sense at the time. However, this extra pressure on the micro switches little push button had worn a 'half moon' shaped groove out of the switch, so it was no longer engaging..we learn something new every day!
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #131 on: December 08, 2015, 06:49:10 PM »

All back in the sub in double quick time...genius, remember :-))
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #132 on: December 08, 2015, 06:54:59 PM »

So with this little hiccup out of the way it was bolt down and pressure test time. It seemed to be holding, so to the test tank.

This is at our teams clubhouse and is the now legendary, Two Baths Stuck Together Test Tank...First time in the water (in daylight) it was leaking air from about four points where the hull joins to the watertight box. These needed gouging out and drying and epoxying. The sub could first be lightly pressurised while the glue was being applied, to blow bubbles in the epoxy. Then a sucking action was required ( Titter ye not madam!), to draw the epoxy into the little hole. well thats my excuse!
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #133 on: December 08, 2015, 07:00:31 PM »

More lead needed. Probably due to the slightly higher topped water tight compartment. also, trimming foam I had fitted in the upper lid as per Engels instructions, was no longer needed, ripped out.
By the time the glue had hardened off, it was dark. luckily we have a 500W security light outside, which provided just enough light for the second dunking..and the drizzle helped too ok2 ..

Photos show the extra lead fitted, plus the interesting fore and aft trim issues, probably related to trapped air within the upper hull. I can see why other modellers have opened missile doors in their Typhoons.
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #134 on: December 08, 2015, 07:03:22 PM »

Now I am running out of excuses not to put this thing in the water.....

I have just received two grainy images from the DoD..........
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #135 on: December 08, 2015, 07:04:29 PM »

Interesting :-X
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essex2visuvesi

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Re: Red October, as seen in the novel of the same name.
« Reply #136 on: December 08, 2015, 10:37:49 PM »


I had a similar issue with my seawolf, the air would accumulate in the nose section.  I solved it by drilling 2 small holes in the top of the nose
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #137 on: December 09, 2015, 12:28:58 PM »

I had a similar issue with my seawolf, the air would accumulate in the nose section.  I solved it by drilling 2 small holes in the top of the nose

I will have a look and see if there are any positions I could put extra vents in.

Meanwhile, maiden voyage Monday afternoon! First job was to de-bubble the upper hull. Then shove it to the lake bottom to check the fail safe function. We have a salt water lake so a few extra precautions are needed. With the fail safe function working it was time to 'sail into history...'
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #138 on: December 09, 2015, 12:31:35 PM »

well it steers like a pig! Even with the mixers active, although the mixing function is reduced as more throttle is added.
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #139 on: December 09, 2015, 12:36:33 PM »

There was some very nice light on Monday for photos, so just in case of disaster, many were taken.
With five minutes of going round in really big circles, it was time to dive the boat.
Initially, as the tanks filled, the sub settled by the stern, then levelling off to decks awash. Having initially ballasted for fresh water the night before, I had a bit more freeboard to deal with. Being still afloat with the pumps full..still, oodles of power from the two geared motors, so go for it!
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #140 on: December 09, 2015, 12:42:24 PM »

Following the first few dives I decided to add some more lead at both ends of the boat, also the over pressure function surfaced the boat automatically, so I had to vent the compartment anyway.
The next few dives still needed power applied to get the boat under, but I was getting used to the dive planes and their influence on the running of the boat. the aft planes proving to be very effective, being able to put the sub on the surface very quickly.
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Subculture

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Re: Red October, as seen in the novel of the same name.
« Reply #141 on: December 10, 2015, 09:30:00 AM »

Looks good. They are a bit of a barge when it comes to handling.

Mick Higgots boat with R & R modules had small rudders fitted inside the kort nozzles, and that certainly improves the turning circle. Depends how fussy you are about scale authenticity I guess

unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #142 on: December 10, 2015, 12:17:18 PM »

Looks good. They are a bit of a barge when it comes to handling.

Mick Higgots boat with R & R modules had small rudders fitted inside the kort nozzles, and that certainly improves the turning circle. Depends how fussy you are about scale authenticity I guess

As this is my interpretation of a submarine badly described in a novel, anything goes...I just cannot believe I didn't think of that, what a donut!
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Re: Red October, as seen in the novel of the same name.
« Reply #143 on: December 10, 2015, 01:45:15 PM »

Hi!   i am not into model sub's myself  ( just trying to keep two model boats dry inside is success to me) but i do like yours a lot!  Especially the black and white photo's that look like they are full size and taken by a spy hiding out in a fjord ................or something like that. Anyway, very impressive!!!!   Regards, Dave.
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #144 on: December 10, 2015, 02:07:52 PM »

Cheers Dave :-))
The 'spy photos' were a pair of pretty duff images taken on Monday, too dark etc. So I put them through a couple of programs on the PC, lightening them, then introducing lots of grainy noise into the image..then doing it again! The Department of Defense would be proud ( if only they could learn how to spell defence proper like!).
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #145 on: January 08, 2016, 06:08:05 PM »

Extra ballast has been added fore and aft. little leaks remedied. Time for the second run to test control with the fore hydroplanes retracted, using aft planes only.

Cut to;

POLJARNY INLET, SOUTHSEA, ext...
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #146 on: January 08, 2016, 06:23:20 PM »

"A great day comrades, we sail into history!"
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Re: Red October, as seen in the novel of the same name.
« Reply #147 on: January 08, 2016, 06:29:22 PM »

The water looks scale.
Makes it very lifelike :-))


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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #148 on: January 08, 2016, 06:33:16 PM »

For it were a cold and windy day on that first day of January, in the year of our lord 2016.....makes for good photos too.
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unbuiltnautilus

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Re: Red October, as seen in the novel of the same name.
« Reply #149 on: January 08, 2016, 06:38:33 PM »

A little tear in the eye as Red October prepares to sail to waters new, with her next owner this Sunday... Still it clears the baffles for the next project. Such is the way of the world <:(



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