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  1. #1
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    Default Announcing the exciting new NANO class

    The NANO class has just been announced by the International Radio Sailing Association. I realize that new classes pop up all the time, most of which seem to be just a variation of something we already have...but this one is really quite different.

    Graham Bantock was recently asked, "What is the point of the NANO class?" Here is what he had to say:

    "The advent of 3D printing fittings and other parts for rc boats raises the possibility of a class where the hulls and other parts are largely constructed by 3D printing and, probably, by the end user. Although this may well work in the existing RG65 and FOOTY classes, those class rules permit conventional moulded carbon fibre for the hull and deck structures and this confers a large weight/stiffness advantage to boats built using ‘hi tech’ methods

    A new class rule devised specifically to cater for those who want to create their own boat, primarily by printing it themselves, would seem to be a logical step for the sport.

    Such a class is an ideal one in which students of all ages can test their design and build skills. Perfect for craft, design and technology projects. The possibility of designing the boat on Friday and going racing on Saturday has become a reality.

    Importantly the class raises the possibility of readily available low cost boats within an open class that is ideal for those starting the sport of rc sailing. You do not have to choose a one design with no freedom to experiment.

    Objectives of NANO class

    Sailors are quite likely to be able to design and build the majority of their own boat
    Hull and associated structural parts may only be made by 3D printing
    No hull/boat certification process
    No sail area measurement
    Event measurement only
    Draught/length ratio not so large that fin technology rules – 0.45 length maximum
    Tightly controlled rig size and number

    Provisional class rules have been launched in May 2017. It is anticipated that feedback from users may assist with refinement of the class rules, if required, to help achieve the desired objectives."


    The basics specs include: Open class rules, 3D printed hulls and parts only, Hull length 500 mm, Sail height max. 900 mm, Draught 225 mm.

    The complete rule is here: https://www.radiosailing.org/classes/nano-class.

    If you haven't seen what Selwyn Holland and I have been doing with 3D hull development, take a look at the RG65 or Footy threads.
    Last edited by mudhenk27; 05-25-2017 at 04:07 PM. Reason: Claudio pointed out that, having a similar LOA to MicroMagic, the NANO isn't unique

  2. #2
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    Default Re: Announcing the exciting new NANO class

    Quote Originally Posted by mudhenk27 View Post
    The NANO class has just been announced by the International Radio Sailing Association. I realize that new classes pop up all the time, most of which seem to be just a variation of something we already have...but this one is really unique. ....
    All that is interesting, but behind the IRSA initiative there is probably something else !
    Nano is not unique, in the range of 50/55cm exist the proven model like MicroMagic of Graupner for less than 150$ and available in less than 1 hours if you are close to shop or via the web without spending the price of 3D printer !

    I do tend to agree to the "propaedeutic purpose" that IRSA may have in mind were future skippers can learn 3D CAD and how to use 3D printer ! this is the future, while, as I said to Selwyn and in agreement with Bantock, the Carbon and Kevlar lamination are superior without the unwanted risks of Warping and Shrinking.

    Designing on Friday and Sailing on Saturday, this is another story !!!
    Last edited by claudio; 05-25-2017 at 09:19 AM.

  3. #3
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    Default Re: Announcing the exciting new NANO class

    Rad!!!

    I'll go check out the rules
    I think the point of the class is for someone like myself. The makers. It's not about the racing but about building things. I didnt get a 3d printer to make yachts, I got one because it's awesome in its own right. The fact that I can use it with the yachts is an added bonus.

    The really cool thing is the carbon filaments would appear to have a weight disadvantage which makes things fun

  4. #4
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    Default Re: Announcing the exciting new NANO class

    Claudio, sometimes I don't understand where you get your ideas.

    I'm a member of the IRSA Technical Committee, and I took part in developing the provisional rule with other IRSA members. Graham initially suggested the idea, based on the results he saw from Selwyn's work. We then all hashed out the new rule.

    I can assure you that there was no motive for setting up the class other than what is stated on the IRSA site. Initially 350mm had been proposed, but the 500mm length was decided as a good compromise between handling (avoiding the Footy's propensity to dive) and convenience for printing in a couple of sections with most available printers. There was never a mention of the MicroMagic in our discussion.

    Since the MicroMagic is a one-design class, and the NANO is an open class intended to encourage self-design and the development of print technology, I see no similarity other than that of length. If that's not unique enough for you, then I stand corrected. I hope you will accept the change to my original post.

  5. #5
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    Default Re: Announcing the exciting new NANO class

    As I said and as an observer/reader, I appreciate the IRSA idea if all is set for "propaedeutic purpose" dedicated to those who are really concern about learning and discovering new technology, but 'pros' and 'cons' should also be clearly explained. Very little so far !
    There is more money and time involved compared with out of the shelf models and ready for use in the 50cm range.
    Substantial investment is required. No many get out the bed in the morning and start 3D design !
    3D Cad need complex learning and this take time, 3D Printers are around 1000$, 4 times the cost of a MicroMagic, at the end it is not even sure that the design of Friday can sail on Saturday...
    This is my idea !!

  6. #6
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    Default Re: Announcing the exciting new NANO class

    Seems like a unsure way of introducing people to sailing, when so many "Makers" classes are around. After a probable time to print of perhaps25 hours, and not knowing if the boat will float unless very specific plans are made available........seems like a solution for a yet unrealized problem. We can't get people interested in building an RG sized boat, even with a ton of free drawings available, I fear a dim future for something this small --especially when well known sailors will always suggest to new sailors to get the largest boat available within their budget because larger boats respond better to waves and wind wind than small boats.

    Maybe some of that committee needs to make a few, distribute to review and trial, and THEN consider a new class.

    Just my personal opinion. What is the current status of the FOOTY class (here in the US)?

  7. #7
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    Default Re: Announcing the exciting new NANO class

    I'm exactly what Dick has just described..... happy to throw myself into the deep-end build wise but I'd like to know that it would work if I built it properly.
    Any chance that there could be a "Plain Jane" hull created for those if us who have never designed?
    You know how the JIF65 is a common first attempt at a home build? There are the line plans and clear notes for where to put the mounts etc. Can't you guys put something like that together?
    And to be honest I would make it a lines plan and not the STL files or Cad lines. This will get people to learn how to put things into CAD and print from that point on which is kind of the point if I'm not mistaken.

    I'm really looking forward to it

  8. #8
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    Default Re: Announcing the exciting new NANO class

    Claudio, please...your opinion is clear, but your facts are a bit selective.

    The boat Brian printed was Selwyn's first RG65 prototype. The subsequent boats 2,3,5, and 6 were designed by me. Boats 1 and 4 were designed by Craig Smith. Boats 2-6 were all printed by Selwyn. All of that is clearly presented on Selwyn's website that I referenced in my first post about the 3D RG65s.

    Here is a direct quote from Selwyn's site: "Prototype 1: “The Black Boat” (Designer Craig Smith, 3d printed by Brian Dill, construction Selwyn Holland)"

    Clearly, credit was given to Brian for his part in this endeavor.
    Last edited by mudhenk27; 05-28-2017 at 12:46 PM.

  9. #9
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    Default Re: Announcing the exciting new NANO class

    It's not that tough, Andrew, but the terms in bold type have specific meaning as defined in the Equipment Rules of Sailing. All of your interpretations are good, so clearly you understand, even though you aren't familiar with all the jargon. Most of your uncertainty is about the rig. The term "spar" applies generically to masts, booms, bowsprits, bumpkins, etc. So you are correct in that you can have only one mast (no ketch rigs, for example) and that your rig can be conventional, swing, una, etc. Fins and rudder can be whatever material you want, same for mast and other spars.

  10. #10
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    Default Re: Announcing the exciting new NANO class

    Claudio apparently has some personal agenda regarding IRSA. His implications that we have been dishonest in some way are absolutely false and unfounded.

    The NANO is announced as a provisional rule. That means it may, or may not, become an international rule depending on the level of participation that develops. It also means that the rule can be modified based on the experiences of the early participants.

    I noted early in this thread that the idea for the class came from Graham when he saw the work that Selwyn and I had been doing, and that I am on the IRSA technical committee, so the fact that Graham, Selwyn, and I are involved is hardly a revelation. None of us has any hidden agenda here, and there is no IRSA conspiracy associated with the announcement of the NANO class. Our objective in developing the class rule was exactly as I have stated in the initial posts. Selwyn's original intention with his website was to "teach people to fish." While that remains the goal, he was so inundated with requests for hulls that he decided, after much thought...and after we developed the NANO concept, to offer kits. That decision was reported to IRSA, so he is making no attempt to cover up any conflict of interest. I have no commercial interests in model yachting.

    Brian Dill is a friend of Selwyn's, and Brian's initial work is what inspired Selwyn to get a printer and start his work. Brian was not, however, involved in the development of the NANO concept or provisional rule. He has focused on RG65s, and I think he is now attempting to print a Marblehead. There is no conspiracy to avoid giving him credit for his work. He has his own website and is not affiliated with IRSA.

    I have personally been straightforward in this forum for years, and will continue to be. I am happy to answer reasonable questions and engage in civil debate.

    Sigh...forum involvement is a double-edged sword. But I wish people who attempt to vilify me would at least spell my name correctly.

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