The mini rule, which by the way I like, specifies the continuous rope, inside which must fit "the footprint".
My question, is this determined as a point, or as a tyre "patch"?
If you had the actual yacht, the rope would need to traverse around, at least, part of the tyres. Not having done this exercise, I suspect this would make quite a difference?
On the drawing board, a designer would use a point as the measuring point?
If my assumption is correct, the type of tyre being used could potentially make quite a difference, ie square profile vs round?
I have regarded the Mini Yacht 5.6m Rule as a "In real life" rule rather than an "on the drawing board" rule.
Also it mentions "rope".... and would have thought the sheet rope to be the most convenient rope to have around when you were to measure a yacht.
People may try and twist the rule by using string, but like most rules in life people tend to push things to the limit rather than comply in the spirit of the rule.
The FISLY definition of a "Mini Yacht" is.....
Any fully assembled sand yacht whose wheel footprint fits inside a loop of rope 5.6m long,
with a maximum wheel size of 4.00 x 8,(wheelbarrow style), a tubular / circular mast and no wing sections is regarded as a mini yacht
i asked IKPSA the same question when he first made us aware of the idea.
Its a piece of of rope 5.6m long in a loop, sit your yacht in the loop , If your contacct point is over or outside the loop its too big. A LLM fits with ease.
I suspect with a FISLY World or even a European title up for grabs. this rule , for all its simplicity will become a headache. it will come down to the mindset of the participants
It seems to me the intent of the rule is as long as:-
Any fully assembled sand yacht whose wheel footprint fits inside a loop of rope 5.6m long, with a maximum wheel size of 4.00 x 8,(wheelbarrow style), a tubular / circular mast and no wing sections is regarded as a mini yacht.
It is anything goes. Isn't that what we all wanted?
This may be an "on the beach rule" but has to be the most difficult one to design to that I know!
Any tyre patch that I know is an ellipse of some sort, size varies, as does the orientation. ie a square profile is wider but shorter in the fore and aft dimension, the round section (as in Clems' Y frame) is narrower but a bit longer. After all is said, any tyre will only have a contact patch big enough to carry the weight of the all up unit.
You could actually change the "measuring footprint" by inflation of the tyres! And I guess by the softness of the surface of the surface on which it's measured, and by whether a sailor is in the seat, and by the weight of the sailor and...
What it all means is that you have to design undersize, I just don't know by how much.
Perhaps someone who has built a yacht to some dimensions on paper could do the "rope loop" and report back on the difference? Please!
Select to expand quoteThis is a great rule it will allow those that wish to push to the outer limits to do so if they choose to
And it's a rule that only limits expenditure by the size of the tyre!
Carbon wheels, quiver of sails, any material to make, etc etc etc
That is what I have done Clem, Can easily adjust to fit inside the loop.
Cheers
Vic
If the miniyacht wheels footprint fit inside the loop of rope its a Miniyacht !
You can have an adjustable front end, rear axles - but beware the spot checks !
Over the past week there were miniyacht events in France, Ireland, England, Belgium, South America and Spain that I know of. All sorts of miniyachts are sailing together, Potty, Ludic, Skoot, Silence, X- Sail, Blokart, Windbob, Windreamer,Plume kart, Libre,Viper etc etc.
The miniyacht arms race has truly begun and guesse what, lots of people all over the world are being introduced to and participating in the sport we all love, landsailing. Which is exactly what I hoped the miniyacht class would do, bring more people to the sport.
Now I call that a result !
Alan
Miniyachts everywhere rejoice !
Keep in touch with the Landsailing World, miniyacht and daily videos etc on the new FISLY facebook page,
www.facebook.com/login.php?next=https%3A%2F%2Fwww.facebook.com%2Fhome.php%3Fsk%3Dlf
So, lets see what a miniyacht looks like ......
www.char-a-voile.com/www-uk/ludic.html
www.minilandyachts.co.uk/specs.html
www.char-a-voile.com/silence.html
www.x-sail.com/
www.windcar-mexico.com/index.php?option=com_content&view=article&id=8&Itemid=15&lang=en
www.spike.com/video-clips/2iqxkv/kwikat-landsailer-flying-on-2-wheels-beside-ocean
www.the-zooter.com/
www.plumefactory.fr/yachts/1-plume-kart
www.landsegler.de/sail-kit.htm
www.windreamer.es/
www.blokart.com/#MapFrame
If you can get away with it performance wise why not build adjustable Foot Print so you can compete in 3 Class Races. Mini, Class 5 or Open??
Ron
Looking at some pics from post IPSKA some of the sail buggy's (from Germany) are using 20" wheels where do they fit into the picture(I would love to stay with my 20") I have fitted wheel barrow wheels to comply but hate the things.
Cheers
Vic
minni aus230
@ Hiko , got it in one Hiko - inclusive not exclusive !
Main idea is to bring people to the sport and start growing it from there , its about participation and not winning .
Kiss - keep it simple and keep it fun.
That said, many miniyacht races score each yacht type as well as the overall .
@ AUS 230, large wheels dont fit the miniyacht rule but nothing stopping you from sailing with them when your not participating at an event within the rule.
I just posted the links to allow folk see what is happening in the world of miniyachts that I know of.
Wheels are easy to change but bringing people to the sport isn't as easy unless its simple and fun !
Im not feeling the love folks ..............help me out
Alan
Isn't the name of this thread "How do you interpret the new rule?" that's just what I've done !!!!!
I think you are trying to stir the pot a bit there niaychi (as usual).
The Blokarts I believe have ALWAYS been considered as a Mini Yacht....
www.seabreeze.com.au/forums/Land-Yacht-Sailing/Construction/FISLY-agreed-miniyacht-specs-now-adopted/
www.seabreeze.com.au/forums/Land-Yacht-Sailing/General/Land-Yacht-Class-5-Mini-Yacht-Specs/
If you have further definitive questions on the Mini Class contacting FISLY would be the best way.... they passed the rule. (We can only interpret their words)
This thread seems to be going no where and leaving a lot of contention. I would suggest that the creators of these rules go back to the drawing board and Clearly Define these Spec's. For instance the rope should be of a specific type to not allow any STRETCHING. At no time should the rope be pulled unnaturally taught. You should look closely at the Contact point of the Tires with the ground and perhaps specify which part of the contact point ie. Center, Outer or inner edge of the Contact Patch.
Wheel specifications should be measured by the Outer Diameter and perhaps applied to a Tire Size as tires expand when air pressure is included. If a tire is blown up and it's Dia is 405mm but is Specified 400/480 x 8 then it is suitable for said class. I am using a 400/480/8 which is on a 8 x2.5 Rim this type of thing will alter both OA Dia and OA Width of the tire but it still remains a 400/480x8. As has been mentioned there are many types of wheel barrows with various types of wheels varying in Dia and Width ..
At this point I am suggesting that may hap Sizing "From Too" should be used to define a suitable tire for the said Class.
Absolutism in these cases should reduce any conjecture.
Ron
I would interprete 4.00x8 as a rim size as opposed to a tyre size, , I have a number of tyres designed to fit that rim size that give various overall diameters. could IKPSA please clarify
If I saw a yacht using a round mast [of any size], using blokart wheels [or similar size] and running 10sqm or [more if you want] of sail and the yacht [built out of anything you want] fitted in a 5.6m rope loop.
I'd call it a mini !!! 
