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[crabbersnipe]

Some more photographs

[ballastanksian]

They should make her a stable model to sail even fixed. She's coming along great 

[warspite]

Your test with sewing thread - what about reducing the thread thickness by unwinding the thread into its usual 3 parts, being thinner it will wont sit as proud, also you forgot that the threads overlapping also create lumpy areas which distorts the effect.

so what about that film for aircraft wings that when heated shrinks, if the horizontal threads are laid as a continuous run and the verticals are laid up to each horizontal, being cut with a very sharp blade so that it is a flush as the horizontal - you create an even mesh, (what about the plastic mesh used for gardening - just cut out the squares between the horizontal and vertical, it may be too thick in section though). when you affix the plastic sheet, glue in the centre of each square so that the film is stuck only in the centre - not sure what glue would be sufficiently strong enough, say about a quarter of the surface area of the square only, when heated and it shrinks it will naturally curve over the thread without looking raised artificially. unsure if this makes sense.  then coat in a resin to seal the film. 

[crabbersnipe]

Decided it was time to open up the anchor recesses today - made a simple gig to transfer the drawing onto the concave hull shape and using a small needle to pinpoint the 4 corners.
Subsequently drilled everything out and removed the underlying balsa before filing the recess into proper shape.
Will be doing the other side tomorrow, and once the hull is turned over construct the inner recess and hawse pipe.


E

[crabbersnipe]

One more - final result

[crabbersnipe]

Thanks Warspite,


Aviation film is a brilliant idea, and one I will give a try. Am making progress with my experimenting, but still not quite what I want - and it has to be perfect or I'd rather not do this at all, for fear it will mar my model.
Have produced a guitar like master grid, using fine metal wire (0.3 mm) glued in place at the proper intervals. Have used this to try and stretch plasticard over it and put everything in the over, hoping the plastic would sag and sink into the squares - clearly not ! The sheet took every imaginary shape bar representing chequered plating !


Next came very thin paper foil, of the type usually found when unwrapping a new shirt (not sure what it is called, but it is quite malleable) - draping this over the grid and then coating in styrene glue yielded a perfect result, but the one thing I still need to figure out is to 'fix' the thus obtained effect - apart from trying to find sufficient stock of this paper '
I guess aviation film will be the thing, and your suggestion to use resin coated is probably the winning combination ! Thanks.


Getting there....


E

[Geoff]

Sorry but I had to laugh at how the plastic card behaved! I understand the frustration exactly!

Just as a thought have you tried just using a very thin grid of cotton thread and just spraying it multiple times as maybe the surface tension of the paint would cause it to pull towards the thread thus creating a dished effect.

I have seen ordinary plating represented with just shading - grey in a different colour and it worked very well.

Good luck

Cheers

Geoff

[crabbersnipe]

Some unexpected scrap bit of info has come to light but one that has caused me some confusion in relation to the sonar domes - information on their exact shapes is extremely patchy, and I have based mine on word of mouth on the one hand, and looking at the Sirmar/Fleetscale hulls being available on the market on the other.
Picture of my rendering attached and 'best probable guesstimate only'.


Whilst trawling through the internet the other  day however, I came across a picture showing the underside of HMS Cleopatra as marketed in the Atlantic resin kit range - the sonar shapes are markedly different though, with the front sonar being perfectly circular and the rear one not tear-dropped in shape but a lot 'fatter'.


Could anyone hazard a guess and advise me whichever interpretation is likely to be closest to reality ?


Thanks very much for anyone's ability to shed light.


E

[crabbersnipe]

Waiting for the propellers to arrive and could do with a little distraction from the hull so started some work on the Limbo mortar, lovely shaped piece of kit it was - with a lot of fidgety details though ! Hoping to complete this weekend.


E

[littoralcombat]

Regarding the Sonar Domes, can you post a picture of them as shown on your plan-set? Which Ship specifically do they claim to show? Are the plans Jecobin? Can you confirm you are constructing Argonaut 'as built'?


I am loving this build!! Your hull work is quite inspirational/exceptional, and I am learning SOOOO much. Thanks for keeping us regularly updated on your progress

Nige

[Netleyned]

The round one depicts a 184 dome
Cleo did not have that fit.
Only the last four built had 184.


Ned

[crabbersnipe]

Been doing some further work on the Limbo mortar and this is the result so far - only need to add the barrels, the breeches and the curved pipe work at the front.
Was very fortunate in having found a rather good drawing of the whole assembly on the net, as well as some very detailed photographs of the Limbo mortar aboard HMS Plymouth, also on the internet.
Am intending to complete the mortar well as soon as I turn over the hull, before moving onto the rest of the superstructure and fittings.


Cheers
E

[crabbersnipe]

Thanks for the comments in relation to the sonar domes and their shape - I have so far based my model on three sources of information:


- the Jecobin plans (incidentally HMS Andromeda in its gun guise - only showing a side view however)
- photographs of the model of HMS Danae (built by David Brown and part of the Devonport Museum collection)
- sketches, drawings and comments from fellow modelbuilders



In as far as my research is correct, I think Argonaut was carrying the following sets:
- Type 177 search
- Type 162 bottom search
- Type 170 Limbo attack


The Type 162 was the decoy carried on the rear deck. I am therefore left to conclude that the first two are the ones protruding from the keel below the break in the forecastle, with the 162 being the smaller of the two ?
I have no idea what or where the 170 looks like or be situated.....


At least we can now rule out the circular shape of the Type 184, thanks for that.


E

[Netleyned]

The first dome is the 170 attack
The second is the 177 search
The 162 transducers are flush with the hull
behind the three GRP windows.
Decoy is type 182.
I have just remembered the Sword, which was
a very thin transducer right forward, that was
lowered when calibrating the 170. This was
obviously a set distance ahead of the 170 so
the distance could be calibrated


Ned

[Capt Podge]

Erm....is there a reason for the 2 threads on this build ?

At first, I thought the 4 original pages had disappeared, until I checked the Warships section.

http://www.modelboatmayhem.co.uk/forum/index.php/topic,56343.0.html

Regards,

Ray.

[crabbersnipe]

Sorry, my mistake, not sure what happened but tried to upload the pictures of the Limbo and was prompted for a new message subject
Hope it is not causing too much confusion

[/size][size=78%]E[/size]

[Capt Podge]

Nah! - it just threw me at first. Thought I'd lost all that great log of how you built the hull.

I'm sure one of the moderators will merge the 2 threads later on.

Regards,

Ray.


                                     Topics merged

                                                            by  ken

[crabbersnipe]

As good as finished my limbo mortar today - just one or two smaller items to be added still but quite pleased with the result so far.


E

[ballastanksian]

I love the model of the Limbo E. I imagine the angle pieces would have taken a few hours to cut and fit!

Nice detailing.

[Rob47]

The round one depicts a 184 dome
Cleo did not have that fit.
Only the last four built had 184.


Confused as HNS Bristol has a fin shaped retractable dome that crew tell me is 184, the 170 having been removed


Ned

[Netleyned]

Just going on the premise that the 184 is
a barrel shaped transducer array.
The individual transducers are arranged
Like barrel staves. The 184 usually replaced
The 177 Search sonar, not the 170 attack.


Ned

[ballastanksian]

What diameter are the mortar barrels?

[crabbersnipe]

Hi Ballastanksian,


The mortar barrels are 4 mm aluminium tube.


Cheers
E

[crabbersnipe]

Did some further work on individualised items of kit and decided to tackle the twin 4.5' gun turret. Gave it some thought as to whether I'd go for a solid carve using balsa, but then decided against it and made the whole assembly out of plasticard sheet and rod, and brass for the elevating barrel mechanism.
Once the structure was completed added putty to the curved turret edges, to fill up the void between the round tube and flat plasticard.



Some snapshots attached.
E

[crabbersnipe]

Some more pics of the gun turret