Ok....I've read and read....and read.....sorry I can't figure it out on my own....but can someone spell out for me exactly what has to be done to make a N6.0na fit into NA F20 rules??

Thx in advance!!

Joe

Hi Joe

The Nacra 6/0 N A version with NE spin and class spin mods. are compliant to NA F-20 specs. and under the dispensation spin rule applied to older existing class boats ,-this provides the owners of existing boats to race as a brand class group AND as a part of a larger Formula 20 class.

The 04 RULE as listed in the 04 rule post reads --
Dispensation
Older existing designs may be given dispensation per class specs. by F-20 committee in design feature trade offs.
Example = an existing heavier mast rig and standard class smaller mainsail in compensation for larger spin area, again only applied to older existing designs per class or owners request.
The current NA N-6/0 with NE spin is F-20 compliant under dispensation ,-as is the current H-20 class with NE area spin.
note ; if changed from class sails or class specs as defined per class a coresponding change to standard spin area is then required per weight category at 300 or 270 sq ft.

further explaination -
Stock boats may add the larger N E spin. chosen by many or any smaller spin along with spin mods needed to that particular boat . Example -the 6/0 uses a different length foil wire to get the spin pole set correctly -this is a spin mod ,along with pole snuffer -tangs and all related spin hardware and gear required.

Other 6/0 versions may choose or already have a modern sq top new mainsail -rigging -or other improvements of matching main jib sail area to F-20 class specs of 208 sq ft and 53 or 60 sq ft jib or = area in larger jib if desired-
With a boat weight category of 419 + the 6/0 or any similar F-20 platform would be allowed up to a 300 sq ft spin or smaller and the larger 60 sq ft jib in compensation for boat weight .
The category one boat weight of 389 must sail with a 270 sq ft spin and 53 jib with same main .at 208 .

To recap -in NA F-20 there are 3 categories

1-boat weight 389 Lbs or any equivilant 20 platform
class model specs, -max 208 main -53 jib -270 spin

Category 2 -boat weight of 419+ any 20 platform
208 main 60 jib and max. 300 sq ft spin.

Category 3 -under dispensation -boat weight of 419+
with stock main/jib w NE spin area max.

note F-18 and other formula classes usejib & spin sizes as compensation for crew weight -F-20s already being suited to larger crew use jib& spin sizes to boat weight .

Thanks Carl...but one point of clarification??? According to the "rules" the N6.0 should only be allowed a 300 sq ft spinaker, right? Yet my understanding of the NE spin is that it is 347 sq ft.....so which is allowed, and if the NE Spin, why??

Sorry to be a pain....but if I don't ask...I risk being DSQ by assuming....(already happened a couple of times...)

Thx again!
Joe

Oops....Sorry....if I read a little closer, I think I figured it out....if I read correctly...."AS LONG AS" I keep "stock" EP sails, I am allowed the larger NE Spin, vs. being limited to a 300 sq ft spin.

It just seems a bit strange to me as a stock 6.0na weighs in at 420 lbs, and has the class max sail for both Main and jib. As such I am curious why I would be allowed a larger spinaker...is it because the mast is a tad shorter than an I20 for example? I guess I shouldn't complain...just take it as a blessing and run (sail!!) with it!!

Joe

Hi Joe

It takes some thought to walk through all the variables ,
but think the 04 rule version serves its purpose,-
to establish the basis of a F-20 class ,
and can be further defined if needed -

The idea of dispensation in Formula classes when established is to accomodate existing similar boats with set up of their preference , this eliminates any expensive change needed until normal periodic sail replacement, then the sailing team still has a choice to update the platform with newer modern sail plan .

All cat designs change over time ,-the only exception being the H-16 due to shear numbers ,--all others have changed or evolved -the Tornado -A-Class cats -etc ,-or become dead boat classes .

Some differences between the older existing boats and more modern class model are the much heavier rig of the 6/0 or the H-comptip ,-that effects moment .

The 6/0 also has the added stay wires -shorter mast -pin top main -and more area in the jib .
6/0 sailors selected that particular spin which on the actual race course between similarly skilled teams seems very close ,-both boat types winning line honors in events with numerous good teams of both types ,--
Also the H-20 winning distance events in good mixed fleets ,that is the intent ,-to keep them competitive and grow a larger F-20 class that includes as many as possible.

The H Fox and other iF-20 EU version 20s are close now to the I-20 US version in speed ,--Now add the larger spin for weight and add the 15 sq ft in the main and these boats should be nearly identical and would rationally rate the same given the same teams ability on each .

The benifits of Formula classes are numerous ,-no more dead boat classes ,-no more having to purchase a complete new boat every two years to be competitive ,-no more having to purchase only brand class gear hardware parts or sails.
Being able to make improvement and changes to any 20 to suit your liking ,-add a mid pole snuffer system ,-better rudder system ,- better hardware set-ups ,-add a reef system ,-floatation ,-safety lines ,trap gear etc ,that make the boat fasater and safer .
Best of all it brings numerous brand types together to race in large class events which creates more partisipation and much more interest which in turn benifits all involved.

Thanks again Carl....and agreed on all points.

Joe