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Dec 27, 2014, 06:16 AM
toyboatskipper
Thomas MM GER15's Avatar
for example Rubin vs. (RTR) rMM:
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Dec 27, 2014, 06:17 AM
toyboatskipper
Thomas MM GER15's Avatar
...not really suitable for another MM version ,-)
Dec 27, 2014, 06:27 AM
toyboatskipper
Thomas MM GER15's Avatar
Here also some in my eyes nice pics I fished sometimes out of the web - I hope I can put them here without any copyright issuses just for the purpose of information. Unfortunatly I do not know the original sites from where I took them. Rubin is sailing with smaller sails from Graupner storm suit:
Last edited by Thomas MM GER15; Dec 27, 2014 at 06:41 AM.
Dec 27, 2014, 06:33 AM
toyboatskipper
Thomas MM GER15's Avatar
And these pics are from an advert of the boat when it was for sale some time ago. The most colourful RUBIN I have ever seen and a true unicate:
Dec 27, 2014, 06:35 AM
toyboatskipper
Thomas MM GER15's Avatar
And also a nice painting with sails look like the orignals in that formal days, found at ebay years ago:
Dec 27, 2014, 10:00 AM
Registered User
Great Pics!
Dec 27, 2014, 11:50 AM
toyboatskipper
Thomas MM GER15's Avatar
You can get more than plenty and very good infos about these original boats from the 80ties here:

http://rbsailing.blogspot.de/

Great website!

About RUBIN:

http://rbsailing.blogspot.de/2013/09...olijk-one.html

here some other / later RUBINs

http://rbsailing.blogspot.de/search?q=+rubin



One of the german team concurrences:

http://rbsailing.blogspot.de/2013/04...rolijk-43.html

(A Pinta team later won a volvo ocean race)


When building the kit again, this one would be my personal favorite for colour design - and also a very true name for the boat

http://rbsailing.blogspot.de/2013/05...rolijk-44.html

,-)
Last edited by Thomas MM GER15; Dec 27, 2014 at 11:57 AM.
Dec 27, 2014, 12:17 PM
toyboatskipper
Thomas MM GER15's Avatar
Here another nice video with oneboard camera


RUBIN RC (12 min 44 sec)


and

http://www.rcmovie.de/video/42c3bd15...gelyacht-RUBIN
Last edited by Thomas MM GER15; Dec 27, 2014 at 12:23 PM.
Dec 27, 2014, 02:51 PM
Boomer1
Boomer1's Avatar

Thank you!


Thomas,
Saying thank you, seems inadequate to express the depth of my appreciation for your posting all this wonderful information for all of us to absorb and learn from.

I have begun reading all of your comments, and exploring all of the links you have provided, not to mention all of the great pictures and the video you have shared. Thank you!!!

You asked about my "hurry" in gathering the information about the mast. My response is that I am enthusiastic rather than in a hurry.

Based on the age of these boats and the lack of current dialogs and or posts on this boat, I felt by throwing out a "net" of inquiries in time I'd be able to capture the correct information before embarking on a Rubin build.

I enjoy learning about the boats that I have chosen to acquire and or build. During the early years of my getting evolved in RC Sailing, I became very interested in another discontinued model Tamiya's Yamaha Round the World, another deep ocean racing yacht.

I used a similar approach to develop my knowledge of this amazing yacht, as well to find one to own. These too have become very rare and difficult to acquire. There are few if any parts to be found. As luck would have it, I was fortunate to have been able to acquire two "new in the box" kits and through much effort was able secure a number of extra parts should they be needed.

Compared to the Rubin, the Yamaha would seem to be a much easier kit to build. I am more prepared now than back then to take on a Rubin. Over the years since building my first kit, the Yamaha became my favorite among my collection. If you are not familiar with this model, it to has a lot of details that make it very true in appearance to the actual full size yachts.( there were three racing yachts made & all three are still being sailed.)

I have been chatting with Wolfgang about a preference for using standard sail arm style servos rather than the drum style used in the Rubin. What are your thoughts about using one of these in the Rubin rather than the drum style shown in the photos? I have several very good sail servos in my shop that might work well. Both were made by Futaba models: S 3801 and the other more powerful sail servo is the S 5301.

Would they fit? Not knowing the specs on the sail servo you used I am going my own feelings that one of these could do the job.

Specs: S3801
Torque: 4.8V: 156.0 oz-in (11.23 kg-cm)
6.0V: 194.0 oz-in (13.97 kg-cm)

Speed: 4.8V: 0.30 sec/60
6.0V: 0.26 sec/60

Weight: 3.77 oz (107.0 g)
Dimensions: Length:2.32 in (58.9 mm)
Width:1.14 in (29.0 mm)
Height:1.97 in (50.0 mm)


Specs: S5301
Modulation: Analog
Torque: 4.8V: 233.0 oz-in (16.78 kg-cm)
6.0V: 292.0 oz-in (21.03 kg-cm)

Speed: 4.8V: 0.29 sec/60
6.0V: 0.23 sec/60

Weight: 4.41 oz (125.0 g)
Dimensions: Length:2.32 in (58.9 mm)
Width:1.14 in (29.0 mm)
Height:1.97 in (50.0 mm)
Last edited by Boomer1; Dec 27, 2014 at 05:23 PM.
Dec 27, 2014, 03:35 PM
Registered User

New masts for the Rubin


I Designed Two Mast Extr.,.....Should Have Samples In Days....Dd
Dec 27, 2014, 05:40 PM
Registered User
what happened to all the moulds for these yachts
Dec 27, 2014, 05:49 PM
Boomer1
Boomer1's Avatar
Quote:
Originally Posted by soling11
what happened to all the moulds for these yachts
Perhaps Thomas can tell us for sure. My guess is they went to the Korean company that purchased Graupner's product lines. The one that was going to bring back the Micro Magic.
Dec 28, 2014, 11:03 AM
wolfgang
tuppesw's Avatar
Quote:
Originally Posted by Boomer1
... Not knowing the specs on the sail servo you used I am going my own feelings that one of these could do the job.

Specs: S3801
Torque: 4.8V: 156.0 oz-in (11.23 kg-cm)
6.0V: 194.0 oz-in (13.97 kg-cm)

Speed: 4.8V: 0.30 sec/60
6.0V: 0.26 sec/60

Weight: 3.77 oz (107.0 g)
Dimensions: Length:2.32 in (58.9 mm)
Width:1.14 in (29.0 mm)
Height:1.97 in (50.0 mm)


Specs: S5301
Modulation: Analog
Torque: 4.8V: 233.0 oz-in (16.78 kg-cm)
6.0V: 292.0 oz-in (21.03 kg-cm)

Speed: 4.8V: 0.29 sec/60
6.0V: 0.23 sec/60

Weight: 4.41 oz (125.0 g)
Dimensions: Length:2.32 in (58.9 mm)
Width:1.14 in (29.0 mm)
Height:1.97 in (50.0 mm)
With the Rubin's 6.5 kg displacement I would try one of those 'heavy duty' arm winches you often find in the infinity54 or the santa barbara.

I'm more familiar with smaller boats and I would try one of your S3801 servos up to a 3 kg displacement yacht.

If you want the back winding option to depower the rig of your Rubin, as noted by Thomas, I would start with two S5301, one for the jib and one for the main sail and syncronize those with one ( up to three) mixer(s). You'll get much more options ;-)
With a 1:2 purchase and optimized levers they should fit into the hull.

Cheers
Wolfgang
Dec 28, 2014, 12:09 PM
Boomer1
Boomer1's Avatar
Wolfgang
Only have one 5301, and it is a very powerful servo. I have several of the #3801.
The largest boats I have are 1 meter in length and one S3801 has been more than capable in the heaviest of conditions I 've exposed them to.

A Seawind has 39dm2 of sail area and a weight of 3,000g, I would guess the Yamaha is similar perhaps a little more and is a little heavier at 3,500g. Both were originally equipped with the Futaba S3801 sail servo.

I have sailed both my Seawind and Yamaha in 18 to 20 mph ( 20-28 km) winds and the servos had no issues controlling the sails. 20 mph is really beyond the boat's normal operating perimeters and it is highly recommended for sailing in these conditions to have storm sails sets. Both of these boats are properly prepared for high wind conditions, but still are a hand full in such conditions.

The S5301 is a pretty big servo and at 6.0V: produces 292.0 oz-in (21.03 kg-cm) of torque - heck, you could use it to lift a car engine That may be over stating that a little, but that is a lot of torque.

The Rubin is a much larger boat than I am familiar with sailing and has more sail area to handle. Still like to know the specifications on the factory recommended winch. Wonder if any Rubin owners have used arm style servos?

Appreciate the suggestion!
Boomer
Dec 28, 2014, 12:58 PM
Registered User
Just use two winches


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