Ro-marin Happy Hunter Tug-1/50-Multifunction RC

NMBROOK

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Hi All

Summer is here and I want to take a short break from spending ALL my spare time in the workshop.I am going to fill a few hours a week with this build which I anticipate should take me around 300 hours.This kit is a completely different style of building to what I normally post and so are the materials involved.We are seeing a few RC builds on the forum and I hope this log may be of use to someone who decides to build a working model.The model will include numerous working features including deck crane.Control of the model will be via a Robbe/Futaba F14 radio which is fully expanded and also was converted to 2.4GHz by Ripmax for me last year.This system is old tech now but is on of the few that were designed for use in a model boat.With the expansion modules I have fitted,this is capable of 144 different functions,far far more than most modern RC control units.I will cover the R/C aspect and it's implementation when I reach the wiring stage.

There is a bit of a story between me and this model.The kit used to be marketed by the now defunct German company Robbe.I bought the kit around 28 years ago and built to the hull stage but the part built model got badly damaged during some impromptu house moves after a messy divorce.The kit was rereleased a few years ago when Krick had purchased the insolvent Robbe company.Krick has remained fairly true to the original offering but has chosen to make some small alterations to reduce costs.Some of the machined fittings supplied by Robbe are now resin,but I still have the original Robbe parts from the kit I bought all those years ago.The micro geared motors for the working functions are not available but Krick has a different replacement for these.I anticipate some small changes to the mounting holes will be necessary.Biggest improvement though is that the ABS plastic frets are now fully laser cut.Robbe used to stamp these and the cuts never went all the way through the thick plastic.the stamping process also caused distortion of the parts which remained buckled even when cut from the fret.

I will include a brief history of the vessel before moving on to a few box pics(but not a proper review as such) then the build.I am playing catch up though,in one weekend I have the main running gear fitted and am working constructing the rear deck assembly now.This build will move faster than my updates such is the nature of construction.

I also have had lots of issues with my laptop and have a new apple Imac being delivered Monday.Having always used windows based computers I anticipate a bit of a learning curve using it.

Kind Regards

Nigel
 
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The iMac is a great PC. You can partition the drive and add the Windows OS. That should reduce your learning curve.

I look forward to your build and the R/C parts. I’m almost at the point where I have to decide what direction I want to go with my Tug. Static model or R/C.

Jan
 

NMBROOK

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Thanks Jan,I am looking forward to having a PC that works properly.My laptop cuts out randomly as the second battery is on the way out.It's four years old and the speakers no longer work and there is a big crack in the back,so I figured time for a new one plus now I have space for a desk,I can revert back to desktop.
RC ships can be as simple or as complex as you want them to be.Normal operation is easy,adding working functions makes things more interesting and complex.My base unit transmitter was a Robbe/Futaba collaboration and they were out of production for a few years when Robbe went into insolvency.They came back but at the moment it appears they are unobtainable and have been removed from Krick's website.The base unit is 40Mhz and can be switched to 2.4Ghz at the flick of a switch and removal of the crystal.2.4Ghz is random channel hopping a bit like your car key remote.This prevents the need to ensure you are using a different frequency to other users on the lake.The 2.4Ghz radio waves do not penetrate water though so should I ever build an RC submarine I can switch back to the old 40Mhz.

Kind Regards

Nigel
 

NMBROOK

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A brief history and a few pictures of the kit.

in 1978 the Happy Hunter was the last ship ever to be launched in Arnhem close to the German border.The Arnhemsche Sheepsbouw Maatschappij was permanently closed after delivery of the Happy Hunter.After only four years Mammoet sold the vessel to competitor Smit and she was renamed Smit Hunter and had a refit including the instalation of a larger stern roller enabling her to be used for anchor handling on offshore oil/gas platforms.
Sadly in July 2003 a fire broke out whilst in drydock for repairs at a yard in Pernis,the Netherlands.Unfortunately the vessel was classed as a total loss as a result and was taken to the breakers.

The Ro-marin kit makes extensive use of vacuum formed ABS plastic parts.This includes the hull which one may regard as flimsy.However once the decks and other internal parts are in place,the assembly stiffens a great deal.The vacformed hull is much lighter than a Fibreglass hull and this is important.If you fit all the working functions there is only a small leeway for ballasting.GRP and other heavy parts are not what you want with this build.You could argue that the use of Lipo batteries and brushless motors could save weight but I wanted to keep the "old tech" approach of the original Robbe kit.

In addition to the basic kit,the powerset and fittings are bought seperately.I bought my kit with the fittings from a local modelshop and paid considerably less than the current sticker price at Cornwall Model Boats. I am certain they had made a mistake.I did have to order the powerset from Krick in Germany but their mail order service is second to none using their website.The fittings come in a box contained in plastic bags.I have sorted these into my own organiser trays for easy of finding and to prevent loosing anything.

Kind Regards

Nigel

HH1.jpgHH2.jpgHH3.jpgHH4.jpgHH5.jpgHH6.jpgHH7.jpg
 

Uwek

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It is bringing me also back to my jouth.
When I was 12 to 16 I was building together with my father several RC-ships, but our favorite manufacturer was at this time Graupner.
So I built (with fathers help) the Löschkreuzer Weser and the tugboat Bugsier. Good old time.......
Somewhere I have still the SMS Emden kit......
I will follow your log with big interest - and maybe with some tears in my eyes (by the dust.....) Redface
 
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Wipes drool from side of lips.
Wish list product!
I will follow with great interest.
My old imac is 12 years old this August. Still use it every day ( runs 24 hrs a day not powered off) , not missed a beat since I got it. It takes about an week to work out the differences with windows.
( cmd key instead of ctl is about it!) plus no no nasty windows viruses.
 
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NMBROOK

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Uwe,yes I remember several kits by the German Manufacturers I used to drool over when younger.I have acquired a vintage untouched Hegi Oceanic tug kit from the 70's.Missing fittings, but these can be obtained or made.
I would like to see if Krick bring back the Berlin lifeboat with daughter boat.I has seen this built and it is a stunning model.

Kind Regards

Nigel
 
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My old imac is 12 years old this August. Still use it every day ( runs 24 hrs a day not powered off) , not missed a beat since I got it. It takes about an week to work out the differences with windows.
( cmd key instead of ctl is about it!) plus no no nasty windows viruses.
Ditto, my iMac is going on three years old, the only time it has not been up and running was during a local electrical power failure.

I‘m looking forward to the multi-function R/C installation. I’m in the “old timer” mode, the most functions I ever used were elevators, throttle and rudder. That was flying a 1/24 scale Sopwith Camel.


Jan
 
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NMBROOK

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Wipes drool from side of lips.
Wish list product!
I will follow with great interest.
My old imac is 12 years old this August. Still use it every day ( runs 24 hrs a day not powered off) , not missed a beat since I got it. It takes about an week to work out the differences with windows.
( cmd key instead of ctl is about it!) plus no no nasty windows viruses.
Paul
I received my iMac today and am typing this on it.A little confusion at first to find hash tag as this is different on the English UK keyboard.Sorted that but I will get to grips with everything properly next week.
I got sick of replacing computers every three or so years and also wanted to revert back to desktop.

Kind Regards

Nigel
 

Kkonrath

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Good to see another RC boat project!

In the end a good video of her underway would be great.
 
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