Topic: Jules Verne Nautilus (Read 129076 times)

Subculture · « **Reply #50 on:** December 13, 2011, 06:40:03 pm »

Fair enough. When white LED's first came out, the bluish-white end of the spectrum was all you could get. Thankfully you can now get warm white, and all shades in between. You can make LED's flicker too.

unbuiltnautilus · « **Reply #51 on:** December 13, 2011, 06:45:10 pm »

Holes in my loverly submarine. Thank you Mr Engel for laying up such a nice thick hull

yours truly starting to drill many, many 2.5mm dia, 1.5mm deep (very approx!) in the lower hull, using one of the two jigs.

unbuiltnautilus · « **Reply #52 on:** December 13, 2011, 06:48:10 pm »

Quote from: Subculture on December 13, 2011, 06:40:03 pm

Fair enough. When white LED's first came out, the bluish-white end of the spectrum was all you could get. Thankfully you can now get warm white, and all shades in between. You can make LED's flicker too.

I do have flickering LEDs in my Magnetohydrodynamic drive units on my Typhoon, which I seem to have forgotten all about until now! Maybe its a homage to Walt Disney and the effects work of the 1950s, maybe I'm just a berk!

unbuiltnautilus · « **Reply #53 on:** December 13, 2011, 06:53:07 pm »

Nautilus now has many little holes in it, one side only, back to work on side two then..

Once the rivets are on I will need a new, touchy feely stand that will not rip of the rivets every time I place the model on top of it. It would also be good if it didn't fall over in the back of the car every time I negotiate a roundabout

batfish · « **Reply #54 on:** December 13, 2011, 08:31:57 pm »

Always loved this version, Not so sure on the price though.

Enjoying the build,

triumphjon · « **Reply #55 on:** December 13, 2011, 08:38:46 pm »

hope your enjoying the BORING ? as for the model falling over inthe back of your car on roundabouts , slow down !

unbuiltnautilus · « **Reply #56 on:** December 14, 2011, 09:06:47 am »

Have you ever tried driving round Portsmouth slowly, the only ones who can do that are the taxi drivers, and thats only because all the road signs are in a foreign language...

unbuiltnautilus · « **Reply #57 on:** December 19, 2011, 05:51:09 pm »

Hydroplanes. These are overscale on the Engel model, for good reason. They aid trim and diving of the model. So I have chopped them down to a more scale profile

The main reason being to box them in with part of the cutters not featured on the model. When I lift the model I seem to constantly knock the hydroplanes. This should help to protect them. First job was to put them through the bandsaw, next job was to glue the one I dropped on the floor back together, and the final job was to sand and fair in the new profiles.

unbuiltnautilus · « **Reply #58 on:** December 19, 2011, 05:55:38 pm »

The holes have now been drilled into the model, awaiting a calm frame of mind to bond in the lead shot. Could be a long wait...

unbuiltnautilus · « **Reply #59 on:** December 19, 2011, 06:01:39 pm »

Squid-Giant-one off....
In preparation for the Shark Project, John has decided that what we need is a Giant Squid, just as a practice piece for playing with glass fibre and rubber molds. When he asked me how big this Giant Squid should be, I suggested 36", it is now likely to be somewhat more metric at 1 metre now. The beast is to include motorised tenticles, beak, eyes etc. Intended just for static display, the plan is to turn it on anytime someone walks past the model

Subculture · « **Reply #60 on:** December 20, 2011, 10:36:20 am »

Won't reducing the hydroplanes adversely affect the boats handling?

Shrouding from the side rakers, plus the location of hydroplanes close to the c.g tend to make pitch control rather subtle. Some people just use ballast control to change the depth of the boat, although I think this might limit your speed.

The best handling Nautilae I've seen use a tilting prop with the hydroplanes fixed. The other alternative is to fit a pair of hydroplanes at the stern, either side of the rudder, although that is less stealthy.

unbuiltnautilus · « **Reply #61 on:** December 20, 2011, 01:09:01 pm »

I have recently seen footage of the Nautilus you mention, control is fantastic although I wonder why he didn't pivot the prop left and right as well as up and down, which would have avoided the need for clear rudder extension. Probably an engineering feat too far.
I am expecting limited pitch control from the model which is not too much of a problem in our local lake, which is usually only 18" to 30" deep.
I did consider 'steampunking' the bejabers out of the model, including hydroplanes, but the look of horror on fellow members faces discouraged me from this action!

Subculture · « **Reply #62 on:** December 20, 2011, 01:52:05 pm »

That sounds like Bob Martin's latest CR66".

He avoided making the prop steerable for the sake of simplicity. Dave Merriman has done a couple of Nautilus models with fully gimballed props, so that it controls pitch and yaw.

merriman · « **Reply #63 on:** December 20, 2011, 05:49:20 pm »

Quote from: Subculture on December 20, 2011, 01:52:05 pm

That sounds like Bob Martin's latest CR66".

He avoided making the prop steerable for the sake of simplicity. Dave Merriman has done a couple of Nautilus models with fully gimballed props, so that it controls pitch and yaw.

And watch this: http://forum.sub-driver.com/attachment.php?attachmentid=2156&thumb=1&d=1261354515

Subculture · « **Reply #64 on:** December 20, 2011, 07:35:50 pm »

Not sure what that link Dave posted to was for- I got a blank screen at my end.

However, a couple of videos of Dave's conversion of a 31" model shows the gimballed prop, and performance of such.

http://www.youtube.com/watch?v=ku1DTcxuKak

http://www.youtube.com/watch?v=alDs9Ufo1jg&feature=context&context=C3536734UDOEgsToPDskLo81I929TCzSH-xzfZ9EUw

merriman · « **Reply #65 on:** December 20, 2011, 07:43:53 pm »

Quote from: Subculture on December 20, 2011, 07:35:50 pm

Not sure what that link Dave posted to was for- I got a blank screen at my end.

However, a couple of videos of Dave's conversion of a 31" model shows the gimballed prop, and performance of such.

http://www.youtube.com/watch?v=ku1DTcxuKak

http://www.youtube.com/watch?v=alDs9Ufo1jg&feature=context&context=C3536734UDOEgsToPDskLo81I929TCzSH-xzfZ9EUw

Thanks, Andy. I goofed the address on that video.

David

unbuiltnautilus · « **Reply #66 on:** December 20, 2011, 08:06:37 pm »

I stand corrected, there is no such thing as an engineering feat too far. Good job. To see this on a small model such as this is impressive.
One question, with the size of the US of A, and the cars and trucks, and the houses and garages, why is it the land of the small submarine? I would expect to see 8' to 10' monsters on a regular basis. Instead the almost 'miniature' submarine has been perfected there instead..

Subculture · « **Reply #67 on:** December 20, 2011, 08:26:04 pm »

They go for all sizes of boat over there. Perhaps the size of the commercial dive systems/wtc's has an impact? The larger cylinders tend to be around 3.5" diameter, which is considered quite petite here in the UK, where the average tends to be 4-5" diameter (OTW, Sheerline etc.).

1/96th scale seems to have been popular amongst the kit makers in the U.S for attack class and bomber (boomer) class boats alike. But here in the UK it's almost impossible to find a manufacturer building an attack class boat in 1/96th scale, they're nearly always in scales 1/72nd and larger, although the bomber boats are usually in 1/96th or 1/100th scale to keep them a manageable size.

unbuiltnautilus · « **Reply #68 on:** December 23, 2011, 01:08:24 pm »

I think we are loyal to our home grown suppliers, over here the best models are bigger models, in the US, the best models are to the smaller scales. The Nautilus featured in the link above is far superior to the Engel model in detail and accuracy, as are all the Nautilus models available in the US. I'm kind of glad that the best models are 'over the pond', leaves the field clear for me and my Engel model over here in blighty!!

Subculture · « **Reply #69 on:** December 23, 2011, 01:45:02 pm »

I think that's a very valid point- people tend to favour home grown suppliers, and I think that's desirable.

Fortunately we're quite well served in this country, and I can't recall a time when there was so much choice available to someone entering this hobby.

unbuiltnautilus · « **Reply #70 on:** December 23, 2011, 02:27:14 pm »

Raker mold time. I have been blessed to be given a sample box of a product called Silput 505. This is a two part rubber molding compound, with a working time of about 5 minutes. Its great for reproducing simple detail only. I have used it on RC Tank Cupolas, hatches, vents etc. Now it found its use on Nautilus. I need to reproduce the Rakers to allow me to protect the front hydroplane with a bit of scale detail. Out with the muck...

My chosen material to produce the replicas was Standard Milliput, a two part, epoxy putty.

The Milliput molds can have their setting time 'kicked' by the application of heat from a hot air gun, however, patience is a virtue..
These will now need final cleaning up while I work out how to fit them, AND make them removeable.

Subculture · « **Reply #71 on:** December 23, 2011, 03:56:57 pm »

I notice that Engel have recently improved their nautilus a bit. More accurate raker teeth, rivets on the underside, and a more accurate wheelhouse.

unbuiltnautilus · « **Reply #72 on:** December 24, 2011, 09:30:31 am »

Wonderful, I'm restoring an antique

Subculture · « **Reply #73 on:** December 24, 2011, 12:42:05 pm »

Well it is supposed to be Victorian.

unbuiltnautilus · « **Reply #74 on:** December 31, 2011, 10:22:27 am »

Happy New Year, I'm making monsters at the moment, more sensible stuff to follow...

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Author Topic: Jules Verne Nautilus (Read 129076 times)

batfish

triumphjon

merriman

merriman