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Old Dec 19, 2014, 09:18 PM
Boomer1
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Graupner's Rubin 1170 mm Yacht

I've started this thread to open a dialog on this boat in the hope of developing a better understanding of the boat's qualities, it's sailing charateristics and perhaps to create an archive of sorts to for those like me that enjoy learning about different kinds of RC sailboats.

The Rubin has met the same fate as the other Graupner sailboats including their classic Micro Magic - sadly they are no longer manufactured. Designer of Rubin is Thomas Dreyer BW, Stuttgart, Germany - who is a forum member. Hope to see some posts from Thomas - who would know more than the boats Father? The Rubin is a "semi-scale replica of the full sized Rubin Yacht raced successfully in
the Admiralīs Cup, the unofficial World Championships in the sport of offshore sailing back in the 70's and 80's. I believe the full size Rubin is 43'to 44' long.

I have be able to collect a little history on the boat's beginnings and been able to collect a number of photos, as well as a few Youtube videos to share to get things rolling.

Those familiar with the Micro Magic will see the clear family resemblance. The Rubin sports some nice scale detailing which should appeal to those like me that like that kind thing. I think I can see a slight resemblance to a Sprinta, another true classic & fortunately still alive and well!

Here are the boat's specifications:
Overall length approx. 1170 mm = 46.06"
Beam approx. 295 mm = 11.6"
Draught approx. 310 mm =12.2
Overall height approx. 2100 mm =82.68"
Mast height above deck approx. 1700 mm =66.92"
Sail area, jib approx. 2400 cmē
Sail area, mainsail, approx. 4700 cmē
Max. displacement 6.5 kg
Keel weight approx. 3.4 kg

PRODUCT INFORMATION

The RUBIN yachts belonging to the President of the DSV (German Sailing Association) H.O. Schuermann have been a constant feature of the German and international offshore sailing scene for many years. Way back in 1973 a German team consisting of RUBIN together with SAUDADE and CARINA was the first to win the Admiralīs Cup, the unofficial World Championships in the sport of offshore sailing. In 1985 a RUBIN was again included in the eighth German team which won the Cup for the third time, this time running with OUTSIDER and DIVA.
The yacht is a 1-ton boat to the IOR (International Offshore Rules), designed by the famed Hamburg design team of Judel/Vrolijk in 1985.
Our model of the RUBIN is a semi-scale model based on this 1-ton yacht. Like the full-size vessel the modelīs streamlined hull with trapezoid bulkhead shape was designed by the Hamburg team of Judel/Vrolijk, and they were careful to consider the special requirements of fast model yachts in their work. The model has good all-round sailing characteristics and achieves high speeds on the water coupled with handling characteristics which are similar to those of the full-size vessel. The efficient keel with low-set lead ballast produces a high self-righting moment and gives the yacht excellent stability. The ready-made pro-quality sails are manufactured in a high-quality sail fabric and feature a special integral profile or -belly-. Fitted with the Graupner/JR REGATTA sail winch the boat is both fast and accurate in response, with the result that a skilled skipper can negotiate all possible courses. For windy conditions, when model sailing becomes very exciting, a reduced-area sail suit is available as an accessory, whereas the sails supplied in the kit are good for light to moderate winds. Like the original vessel our Rubin features an integral auxiliary motor which can be used to recover the boat at any time if the wind should fail. The forces produced by the rig and keel are
absorbed by a strong internal framework of bulkheads. The removable keel and easily dismantled rig make the model easy to transport in spite of its impressive size. The boat is intended for the advanced modeller, but still features a large number of high-quality pre-fabricated components for easy of construction, including the sophisticated GRP hull with integral keel socket and all-round deck flange, a complete deck and cockpit molded in ABS and ready-made professional sails. Please note that the boat is not intended to be a beginnerīs model.

Kit CONTENTS

Quick-build plan showing R/C installation, illustrated building instructions in German, English, French and Dutch. White-pigmented GRP hull with integral keel socket and deck support flange, ready-made keel fin and rudder blade; vacuum-molded ABS deck, superstructure and other parts, printed and die-cut wooden parts, strip material and tubing, ready-made professional sails, three-part tapered profiled aluminum mast, ball raced blocks, injection-molded plastic parts, shroud tensioners, shroud cord, sheet material, rubber cord, aluminum winches, aluminum lugs, blocks, railing stanchions, fixings, sticker sheet, lead ballast.


Here are a few of the videos I found - that give us a feel of how these yachts sail.

https://www.youtube.com/watch?v=M3lRWCQ1N4o

VOILIER RUBIN.mpg (9 min 59 sec)


http://www.rcmovie.de/video/42c3bd15...gelyacht-RUBIN
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Last edited by Boomer1; Jan 23, 2015 at 11:53 PM. Reason: typos
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Old Dec 19, 2014, 09:46 PM
Boomer1
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Your comments and insights are invited and welcomed! If you own a Rubin or have sailed one all the better.
Thank you
Boomer
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Old Dec 19, 2014, 11:16 PM
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A local sailor has one...not in the best shape, but he's getting old and I'm circling above waiting for him to sell it....nice big model and sails well in a stiff breeze. I like the scale looks of it. Not just another boring one design.
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Old Dec 20, 2014, 12:52 AM
Boomer1
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I located some photos of some of the components in the kit. The vacuum-molded ABS deck, superstructure have to be bonded to the Fiberglass hull (shown below)

As in other of Graupner's boats there are printed and die-cut wooden parts, strip materials included that provide bulk heads and other internal supports for this 46" yacht.

From what I am reading, the finished product yields a very sturdy and seaworthy craft.

Dobydog,
Be great if you did secure the old boy's Rubin. Knowing you, you'd have that yacht back in "Bristol" condition in short order!

Boomer
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Old Dec 20, 2014, 11:25 PM
Boomer1
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Here are some images of a Rubin X1 - This yacht took part in the 1989 Admirals Cup as part of the German Team. Pictured here approching Lymington Marina in 1989. This yacht is 44ft long and designed by Judel / Vrolijk.fu.

These photos provide a good sense of how well the model represents the full size yacht. As I find more good images I will post them
Boomer
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Old Dec 21, 2014, 03:57 AM
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With Chines boats selling at $200 and below, it's a shame, but it's impossible to sell a boat like the Rubin at its true value. If a European company wanted to do it, it would cost as much as the Sprinta.
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Old Dec 21, 2014, 01:47 PM
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Boomer,
Did you get one these very detailed and interesting boats? Ryan
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Old Dec 21, 2014, 01:54 PM
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Quote:
Originally Posted by martin richards View Post
With Chines boats selling at $200 and below, it's a shame, but it's impossible to sell a boat like the Rubin at its true value. If a European company wanted to do it, it would cost as much as the Sprinta.
Apples and oranges...
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Old Dec 21, 2014, 02:23 PM
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Originally Posted by dobydog6507 View Post
Apples and oranges...
We know that, but the average buyer and retailer don't.
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Old Dec 21, 2014, 02:33 PM
Boomer1
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Ryan
This is certainly the kind of model I find appealing. Love the detail and history that goes along with the boat. Let us say for now that I am working on it

Hey Dobydog
Can you do me a favor? I need to get the spec's on the mast for a Rubin. If I get one, it will be missing it's mast, the problem is I have no details on it's diameter, length etc.

I doubt the instruction will contain such details. The fellow that designed the model is a forum member, so I will see if he can provide the information needed to make a replacement mast.

I have pictures of the original factory mast which I believe was a two piece arrangement. I also have a picture of one with a carbon fiber mast.
I read some place that the last models build were sold without the masts.

If you see the fellow that has the Rubin, it would be great if you could get some dimensions for me. Thank you in advance for any effort put forward on this request.

Boomer
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Old Dec 21, 2014, 03:47 PM
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I'll be seeing him in Feb at a club meeting...are you in a hurry?
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Old Dec 21, 2014, 04:16 PM
Boomer1
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Originally Posted by dobydog6507 View Post
I'll be seeing him in Feb at a club meeting...are you in a hurry?
"Beggers can't be to choosey". Sooner would be great. I have sent a message to Thomas the reported designer to see if he could help.
Time will tell.
Thanks
Boomer
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Old Dec 21, 2014, 04:22 PM
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2014 Wellesley Ontario RC Show (27 min 7 sec)


You can see his at the 16:54 mark on a table and at the 17:02 mark in the water close to shore.
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Old Dec 21, 2014, 04:32 PM
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Another pic..
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Old Dec 22, 2014, 08:57 PM
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Some sailing in this vid...I like the one in the "Miss Geico" green!

VOILIER RUBIN.mpg (9 min 59 sec)
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