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Author Topic: Multipurpose workboat "Viking Energy" 1/50  (Read 4842 times)

hama

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #75 on: August 12, 2020, 08:10:56 pm »

All very impressive! :-))
Hama
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derekwarner

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #76 on: August 12, 2020, 11:35:34 pm »

Ralf....the winch is brilliant :-)) , the rope good O0 ......the chain is not to scale  >>:-(  .......Derek
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Derek Warner

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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #77 on: August 13, 2020, 06:33:57 am »

Hi derek,

what do you think, is a scale connector between buoy and anchor?
during my youtube-research  %) ive seen (steel)-ropes and chains of all kinds and sizes for that purpose. the shown chain was just in stock, so I'm able to replace it.

I would be grateful for any tips  O0
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Ralf

derekwarner

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #78 on: August 13, 2020, 07:28:51 am »

Hi Ralf.....please understand my comment was intended as a constructive comment, not a criticism...


Do we see 3.75kg thrust?......which is the vessels power?....but not the Bollard [winch] pull


So the winch chain is not an anchor winch.......but a winch to retrieve a floating Buoy or ???


I suspect the chain loop be somewhere length of hoop = 5  x the diameter of the wire, height of the hoop = 3 x the diameter of the wire
[/size]
[/size]regards
[/size]Derek



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Derek Warner

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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #79 on: August 13, 2020, 08:31:38 am »

Hi Derek,

I really appreciate your comment. In addition it makes me think and write in english, still trying to improve my skills of this foreign language.

You see .375 kg bollard pull.  According to a knowing man is this, depending to the mass of the model, a good approach to the bollard pull of the original with its 35 tons.
If I've reseach correctly the general construct and sequence is:
buoy connected to the anchor with some rope/chain.anchor connected to the ship with an anchor chain.

sequence to lift (and e.g. move it to another place):

the winch, with its own cable , lift the buoy on deck. often using the bollard on top of the buoy.

---------
aaaah. During writing, I've noticed my mistake in the clip:  I lift the buoy on the connector-cable , not on the buoys bollard.  Shame on me  %)
---------after stowing the buoy on deck, the winch will connect to the anchor connector-cable.
then lifting the anchor on deck with the winch.

after I've finished my little flipper delta anchor I will take another try to make this handling in a correct way



long text  :-)
to the chain loop: thanks for the dimensions.  :-)) but, wich wire do you mean? the winch rope or something else?

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Ralf

Blaven03

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #80 on: August 13, 2020, 09:56:25 pm »

Fab build, super stuff.
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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #81 on: August 14, 2020, 03:55:28 pm »

Thank you, blaven :-))




-
With the decksurface the front half is now finished.







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Ralf

derekwarner

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #82 on: August 15, 2020, 03:42:49 am »


Ralf......I am a little confused......we see the digital display of 3.75 [kg] and the video is termed as Bollard pull, however clearly the vessel main engines [propeller wake] appear to be powered forward at the same time, and the vessel moves forward during the test?

https://www.instagram.com/p/CDT5xk6KnPi/


Am I misunderstanding this?....


Derek
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RST

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #83 on: August 15, 2020, 04:32:53 am »

Derek the above video and the picture of the scale on static pull (which normally represents bollard pull) shows something quite clearly in the order of of 0.38 kg bollard pull which I woud say is quite healthy for this kind of model!  How yourself saw over 3kg is I think a bit fantastic and unrealistic considering the decimal point is shown clear-enough.  I have no idea what you are seeing and interpret "powered forward at the same time" -it's quite simple video really to me at least and  looks OK as per many models bath tested?  What are you seeing different from the rest of us pease???  My only gripe on the subtitle to the video is I don't actually know what a "Ton" is as it can be several values between long and short tons, I have never been allowed to use "Tons" as an engineer -Tonne or Te (metric) which is clear and was never allowed to use anything else according to "European" rules suppsedley imposed since mid 80's, but I'm coming across more Europeans the past few years still using "Tons" and it often causes clarifications, sometimes they use mT which is even more confusing when it comes to cranage or winch capacities and capacities when a leverage is assumed also!
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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #84 on: August 15, 2020, 06:58:55 am »

Thanks for your help, rst.  :-))


Youve written exact what I mean.


The subtitles were simple google conversions from kg to short tons.



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Ralf

RST

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #85 on: August 15, 2020, 07:26:06 am »

...I think maybe it's supposed to be "long" tons, or roughly 2,200lb.  The sun hasn't been shining enough on Dereks solar powered abacus again, either that or it's missing a decimal place ball as it comes up with fantastic numbers sometimes.
I hate the mix of imperial and metric terms:  Not the first time I've met a forman who measures things something like 60cm (cm?) , 1 and 3/8" -they're usually the old guy who complains that he hasn't bought a drink from the vending machine as it wouldn't accept his old half penny or drank a cup of tea at all at work on tea breaks since Doris the tea lady retired in 1971 but he's been there ever since.
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derekwarner

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #86 on: August 15, 2020, 10:25:54 am »

Ralf.......I have rewatched the video on slow motion & yes ....my apologies ....the value of tension recorded is 0.375 [units]


My role as a Foreman of Missile Launcher work on Naval vessels was always in the Si [Metric System [tonnes}] even though components for maintenance of the same were from the USA and so labeled in fractions of US Tons  {-)


So, in my younger years [in 1971], in the Office. the Tea Lady's name was Thelma  :kiss: ...I liked her biscuits


The sun is shining now, so looking forward to reading more of vessel..... :-))


regards Derek




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Derek Warner

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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #87 on: August 15, 2020, 10:08:09 pm »

The deck surface is done.


1mm plywood, each segment is cutted and customized. After that, they are soaked with 50% diluted varnish.


The borders are from very thick iron primer of a rust set. The thickness gives clear edges.


The four front segments are removablw to reach the hull. The four rear panels are glued permanently.






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Ralf

ballastanksian

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #88 on: August 15, 2020, 11:04:45 pm »

Hey Ralf, the technical bits of the build are amazing! The movable elements of the hook and the rotor mount for the crane are brilliant while then you do a superb job making a bouy look old and crusty. t's all great  :-)) :-))
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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #89 on: August 16, 2020, 04:24:21 pm »

Thank you.




Stern roller and bumpers are done too :-))


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Ralf

pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #90 on: August 17, 2020, 06:17:53 pm »

Almost finished :-)


Name , IMO and port of registry are done.
Weathering on a 2019 ship would be looking overdone. So I decide that im only add some scale items to bring a bit life on board. Like ropes, barrels etc.





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Ralf

pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #91 on: August 18, 2020, 08:50:32 pm »

Hi there,


My last pics for this project :}


Ive built a flipper delta anchor, weathering it and put it in a little deck-scene.
Hes just tow on deck with his pennant wire rolled on the main winch.
Before this, the buoy is stowed on deck, secured by the mooring winch, using the pulleys.







Thanks for watching and writing.


See you soon....
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Ralf

derekwarner

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #92 on: August 18, 2020, 11:19:43 pm »

I like the stern flipper fingers Ralf...on real vessels, one retracts before the other [as you have achieved] ......just not sure why this happens? %)


The Skipper would not be too pleased if the Green 205 litre drum breaks away at sea, surely the Crew could rotate 3 drums could be rotated so all are inboard of the Bund line


I like the discrete level of weathering  :-))


Carry on ....a video on the water [in slow motion] would be great  O0


Derek
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Derek Warner

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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #93 on: August 22, 2020, 09:22:31 am »

Hi Derek,


The third drum, beside the main winch, is one of three things I still have to do.




Maiden trip is postponed due to pond weed  >>:-( >>:-(
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Ralf

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #94 on: August 22, 2020, 05:08:59 pm »

Yet another enjoyable project on the Mayhem forum! She looks great as does the cargo.


I wish your weed a speedy demise so you can get sailing.
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Mark T

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #95 on: August 22, 2020, 05:14:36 pm »

I have to agree that is a fantastic build - that anchor actually looks real even close up.  What a great ship with such amazing detail  :-))

pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #96 on: August 22, 2020, 09:18:33 pm »

Thank you for your kind words, guys. Im glad you like my little shenanigans.




-


And here she is, the third winch  O0













 





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Ralf

RST

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #97 on: August 22, 2020, 10:17:52 pm »

Derek in my experience anyway that wouldn't be a bund. It's the edge of the steel grillage  under which the edges of the wooden protection sits. It's what we would use as tie-downs and seafastenings as can't weld to wood, nor is wood protective blocks that long between restraints.  Bunds on deck are in my experience a pain in the ass.  Agree in principle but class forces us to do it without thought most times, regardless the fact they just! fill with rain / splashes most of the time, which negates the point.


I always thought "king pins" retracted one at at a time was so not to trap the cable as some have offset projections at the top -either that or on the same hydraulic circuit or one naturally went first.  I don't think they are all the same.



Great work pufferfish!
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pufferfish

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Re: Multipurpose workboat "Viking Energy" 1/50
« Reply #98 on: September 16, 2020, 07:33:37 pm »

Hi there,

last Weekend the Viking Energy gets his maiden trip.  :-))   A short test to push the big Floating Crane was successful too  :-))
A short clip of the Test
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