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[pufferfish]

After a kindly support form a crewmen of the original viking energy, i've get the correct sizes for the crane top-segment. All other sizes depends on them, on my skills and materials.
First point was to build a new, smaller, spindle


My bender gets a highend scale to make repeatable bends. I need many 60° bends for the segments. After finding the 8° overbending standard for my sheetmetal i get proper 60° angles as far as the machine it allows





Now the segments are ready to get their details

[Trucker]

great looking model Ralph. are there any plans available for these tugs, i have looked around the internet but not come up with ant thing


Trucker

[pufferfish]

Thanks trucker.

You can find my "Plan" here https://www.landfall.nl/wp-content/uploads/2020/04/Technical-details-VIKING-ENERGY.pdfI've build my model just from this general plan , the specs and found Pictures  at the landfall  page https://www.landfall.nl/viking-energy and in the web.
Rest of the model is build on my own creativity. Without my faible for scale functions it's a relativ simple rig.


Just one tip:  in 1/50 this tugs have a very very small freeboard of ~1cm. so you have to build it waterproof like a submarine ore use a bigger scale

[RST]

I agree with pufferfish. There's so many GA's out there for multicats from many designers or operator companies websites.  They're pretty much all square-ish so plenty to work from from the pdf GA's rather than full plans and so many photos and they're all somewhat unique so very few people could turn round and say anything isn't right.


Also agree, 1:50 is my favourite scale and freeboard is small on these by design, nevermind a model.  Seeing as they have no camber on the deck I decided on mine I will use full magnetic sheet to hold the relatively large and flat model openings down and hopefully keep water out as there's little features that could have coamings apart from the relatively small deck house.

[Trucker]

Thank s for the info and links, imagination is now running away with ideas.


Trucker

[pufferfish]

the flnges for the hydraulic tube dummies are done.

Most of you surely know the smallness of 1/50 things.
the broad flange in the above pic has a little bar to hold the tube

after welding not realy nice looking but works. shown under a monstreous  1 euro cent




todays work was assembling,   aaaaaaand

it works 

Not perfect, but it works.


A little clip:  https://www.instagram.com/p/CPqjjLaKGkb/

[pufferfish]

Fake hydraulic rods done 





Looks a bit crooked on the pic , but their are straight.

[pufferfish]

The body of the middle segment is done.
two hidden n20 gear motors doing the moving of the two joints



in action :  https://www.instagram.com/p/CQ3zrHIqWA_/
All mechnical features are done now. Following by cosmetics and adding non-functional things like hydraulic-dummies etc.

[pufferfish]

Hi there,

quick setup of all crane parts so far.


Reaching the water surface? 


Checking the weight and estimate how much of decorative details I can add during a short trimming session.

[pufferfish]

It's done.

Finally, the front crane and thus the last component of the vessel is finished.


The crane is fully remote controlled.

You'll find the clip of a quick dry test HERE


Thanks for watching.

[derekwarner]

That second clip...."proof of concept middle segment with two hidden gearmotors" .....https://www.instagram.com/p/CQ3zrHIqWA_/

Not sure if you have stood beside one these actual hydaulic hoists during use?

It is the sound  


You have achieved [whether by choice of good luck] the sound of a hydraulic system.....all motions here are the system being driven over counterbalance valves and the sound generated by your model is pretty darn good   


After a lifetime in hydraulic systems, it is a sound that cannot be ignored


Well done ....Derek