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Author Topic: IRON DUKE 1914  (Read 107746 times)

ballastanksian

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Re: IRON DUKE 1914
« Reply #375 on: January 23, 2018, 08:29:18 PM »

I reckon the quality of density is because the steam doesn't have to travel very far at all, so less steam has condensed in the system, the heating system need not have so much redundancy because it isn't catering for distance, and each system is feeding its self only, so is more efficient.

It is still amazing, and if elements could be 3D printed then it would be a splendid product especially allied with the turret control system that fellow Mayhemists are experimenting with  :-))

We need a few of the kaiser's fleet to add some smoke to the skies.
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Geoff

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Re: IRON DUKE 1914
« Reply #376 on: January 24, 2018, 09:09:09 AM »

Whilst the fog fluid is made up of de-mineralised water, glycerine and a certain type of glycol I don't think we are seeing steam. I believe that the water flash vaporises which in turn atomises the glycerine and glycol forming tiny droplets which in turn refract the light giving us the fog, so the water is the "flashing" medium and the glycerine/glycol form the small droplets which give us the "smoke". Otherwise just pure water would work and it doesn't - tried it!

Cheers

Geoff
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Geoff

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Re: IRON DUKE 1914
« Reply #377 on: January 24, 2018, 09:14:27 AM »

I meant to add, that the purpose of the alloy block is to store the heat energy so it can flash vaporise the fog fluid. Fundamentally it takes "x" amount of energy to change a liquid to a gaseous state in "y" amount of time. So all the stored energy can "dump" into the fluid and the rate of heat transfer is governed by both the alloy mass and the maximum amount of energy it can store and the surface are of the central hole to transfer the heat which in turn builds up the pressure so its ejected down the length of the barrel.

I suspect there is probably an optimum relationship between everything but I just don't have the sophisticated measuring equipment to analyse further. I also suspect at the small scale we are working at that there would only be minor differences anyway.

Cheers

Geoff
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ballastanksian

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Re: IRON DUKE 1914
« Reply #378 on: January 24, 2018, 09:26:42 PM »

Yes, sorry Geoff, that is what I meant to say in my post 22:00 way! I think looking at the images, you have probably have the constituent parts pretty well balanced.
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Geoff

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Re: IRON DUKE 1914
« Reply #379 on: May 14, 2018, 02:08:24 PM »

After about 5,500 shots I was checking the guns and realised that the plastic barrels have distorted with the heat at the muzzle end which is somewhat annoying.


I know we strive for realism in our models but the god of models is taking it a bit far when I have to change barrels every year or so but I guess I shouldn't be surprised as its really over 1,000 shots per working barrel! Just like the real thing after extensive firing the barrels need replacing!


I'll try to replace them with a metal version so I won't have to replace them again. I also found that X and Y turrets the insulation was soaking. I can't see any evidence of a leak so it may be the filling tube was passing fluid - I'll monitor the situation.


Cheers


Geoff

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Geoff

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Re: IRON DUKE 1914
« Reply #380 on: May 29, 2018, 01:33:43 PM »

When I was at Wickteed Park over the weekend a gentleman kindly took a video of Iron Duke per the attached link.


Thank you


Geoff



 HMS Iron Duke 1/96 scale, over 6ft long with working turrets





RC HMS Iron Duke escorted by 2 destroyers (1/96 scale)



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Bob K

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Re: IRON DUKE 1914
« Reply #381 on: May 29, 2018, 07:11:14 PM »

Really great videos Geoff.  I posted the first one on my Facebook.   :-))
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HMS Skirmisher (1905), HMS Amazon (1906), HMS K9 (1915), Type 212A (2002), HMS Polyphemus (1881), Descartes (1897), Iggle Piggle boat (CBBC), HMS Royal Marine (1943), HMS Agincourt (1912)

ballastanksian

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Re: IRON DUKE 1914
« Reply #382 on: May 29, 2018, 09:55:15 PM »


Both your escorts belong to Tony who is a fellow Mayhemer. In the mosaic of videos shown at the end of the latter video, I saw his escort fleet shown in another of RC Model Warship's videos of the Warwick show.


The children's enthusiasm was lovely to hear and shows that traditional models with some technological marvels still capture their imagination  :-))
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danl

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Re: IRON DUKE 1914
« Reply #383 on: June 09, 2018, 01:08:57 PM »

Geoff,
Great videos...and great firing effect.  Congrats on developing such a great approach to firing guns.
I finally ordered some PTC's to build some prototype carronades for my brig.  Will keep you posted on progress.
Thank you for writing up all the details of your work.  Much appreciated.
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