New project - USS Nautilus

So I started designing a new project. Smaller this time, about 1,1 meters long. As this is an English speaking board, the boat might be recognized:

Hi,

A USS Nautilus , is it not?

If so, not a very common model (I can't think of one.)

Looking forward to seeing your build log.

David

Yes, it's the Nautilus.



After my 180 cm U-1 this will be a small one, with only 111 cm length. And  I'm surprised, that it is a rare boat, as I think that this actually a very beatiful one. But maybe the tilted double propeller setup makes it hard to build....

Keep us posted looking forward to seeing your build on this one

geof

Dr.Schmidt wrote:So I started designing a new project. Smaller this time, about 1,1 meters long. As this is an English speaking board, the boat might be recognized:

May I be of assistance? I converted the big DeBoer NAUTILUS back to the 'as built' configuraton and r/c'ed it.

Sure, any infomation is welcome......

Put some more work ind designing the stern section. Some more details and the basics of the boat are done:

david f wrote:Hi,

A USS Nautilus ,  is it not?

If so, not a very common model (I can't think of one.)...

Hello David,

it'true, the USS NAUTILUS cannot be found very often as a working submarine model.

But there is at least one model built already since about 25 years ago by a submarine modeller friend living at Hamburg, Michael Strube is his Name. As I know his model is in scale 1:87 (the model railway HO gauge scale) or 1:100 scale. It is built as single hull type with a technics rack that is combined with the stern section. The rack with all the electrical and mecanical components can be plugged out for easy access.
It has a piston tank diving system built by himself (like the whole model is of his own design) and besides a leveling electronics it has also an automatic depth Regulation that enables static hovering. Also periscope and antennas can be erected out of the sail. In the past I have seen that model on many occasions (exhibitions and submarine modeller meetings) but it seems that for the last years Michael has retired from submarine modelling since he had set his focus on model sailing. Unfortunately I haven't found some photographs yet.
Nevertheless his model has been famous for reliable operation during many years of Service. Michael had also started to build a model of the USS PERMIT class but I don't know whether he has already finished it yet.

Best regards
Klaus-Dieter ("Hermann")

...I have found a picture of very bad quality and I hav emade a cut-out of that NAUTILUS model. Besides (in White colour) you can see Michael's PERMIT in dismantled state, like in the next Picture. In the second picture the NAUTILUS was just on the pond at the Moment when the photograph was taken.
The Pictures were taken on the Exhibition at Neumuenster, northern Germany, in 2005.

My sub will be 1/87 as well....

Hello @Hermann ,

Regarding Your new project I have some where on a closed some blue print with these sub . Not Very accurate - I assume , are from a very old modeling magazine published in Romania and I don't know about the scale .
If I can make some pictures with them , I can post them here if You think is helpful ?. I don't have a scanner .

Regards
MARIUS

Thanks, but I'm pretty much through with the basic design. I had some blueprints and some photos. I guess that's accurate as possible.

Cheers Andreas

The basic concept is done:

Very nice Andreas and we look forward to seeing the your build log roll out.

Twin brushless motors?

Speaking with my Administrators hat on, do you mind if you or we add USS Nautilus to the title of this thread?

(It makes it that much easier for folks to find it in future (searchable etc.))

David

Sure, rename the thread. And yes, twin brushless. I use them in the U-1 and they are small and work splendidly.

Cheers Andreas

Hi Andeas,

What sort of brushless motors do you intend to use?

I say this because one of the things that seems to limit their use in submarines is:

- tend to be very high revving (gearboxes!!?)
- too many to choose from.

I asked a similar question to the Sonar members at the Dortmund show and they said that they tend to have them specially wound.

Are there easily commercially available brushless motors which would do the job?

For example, how about this one :

3508-380KV Turnigy Multistar 14 Pole Brushless Multi-Rotor Motor With Extra Long Leads

http://www.hobbyking.com/hobbyking/store/__41615__3508_380KV_Turnigy_Multistar_14_Pole_Brushless_Multi_Rotor_Motor_With_Extra_Long_Leads.htmlCUR=GBP&LOC=GB&LAN=ENG&gclid=CIi5u7PBwMECFabLtAodhx0AhA

I have never used a brushless in a submarine yet but this looks compact and low revving because it is multi pole.

David

ROXXY© BL-Outr. C35-30-45 300kv

or

ROXXY® BL-Outr. C35-29 500kv

The 35-29 ones are driving my U-1

Thanks for the information, Andreas.

So that it is a 14 pole motor which will be doing only 3000rpm at 10v.

Also very small - I am beginning to see the attractions of brushless!

David

http://www.robbe.de/roxxy-bl-outr-c35-30-45-300kv.html

It's all about the size. Also my self-designed water-tight feed through saves allot of space in the interior of the wtc, as it moves the motor right to the stern bulkhead. The complete length of the wtc with a 750 ml Engel piston tank is only about 60 cm.

The CAD files for the milling of the moulds are getting ready:

Small stuff has to be designed as well......e.g. hatches:

While waiting for the first milled pre forms for the fuselage, I spent some time drawing details:

Starts to look like a boat......the small stuff takes extremely long to draw

Just got a package......:D

Propeller design....