IOMICA Forum

I guess if a "deck" is undefined in the rules then any sort of unusual and unexplained protuberance could be considered legal eg. the bumps on the deck of a VISS Section F rules concern rigs: F.2.4 CONSTRUCTION (a) Fittings and/or control lines may be combined provided their function is not extended...

rules must be enforceable and therefore, structures that can only be examined by destructive testing (like the interior of a honeycomb structure) should not be allowed

lets not get into the rule that specifies what grades of aluminum are allowed

opens up a whole new area of creative "deck" components I guess

also opens up a whole new area of creative plate vangs that pass through the appropriate size ring

for a single rudder, probably most time/cost effective to simply shape one out of wood and veneer it with a single layer of light weight fiberglass

less throw = less drag
45 degrees seems a bit much and makes it tempting to use the whole throw, although it might be useful when trying to stop to avoid going over the starting line early!

If you're determined to use a switch, use a SmartSwitch from RMG - it is sealed, shows battery charge status at a glance, and is flat to eliminate line snags

Looks like it should be measured as additional sail area!

Some time ago, some boom vangs were quite large CF plates and they were outlawed along the same line of though

with LiPo or LiFe battery high capacity, it's probably easier and simpler to change batteries after a certain amount of time and simply have the boat turn on when you connect the battery and eliminate the switch since its just one more electronic thing to fail. this assumes your battery is in an eas...

What did you decide? The rules pertaining to the "rig" state that material of any density is allowed below the "lower point", to allow counter weights to be placed onto or inside the spar to make all rigs the same weight (C.7.3 (a)). The jib boom counterweight is not really a corrector weight (which...

no

It appears as though this discussion concerns how to allow "home builders" to use 3D technology for rapid prototyping. Since by all accounts, a 3D printed hull will be heavier for the same strength as a conventionally constructed hull, these will probably not be competitive but more as "trial horses...

I heard there is a WC Regatta underway, but can't find any mention of it on this site.

Bob Wells and I did an experiment using in-hull flotation bags. The text and underwater photos can be found on the IOMUSA.ORG website:
http://www.iomusa.org/wp-content/upload ... riment.pdf

check with your sailmaker for directions regarding location and amount of pre-bend as well as suggested spreader position - there are no rules that specify spreader position

Just finished an experiment with IOM flotation and posted it on the IOMUSA.org forum. You can get to it using this link: http://www.iomusa.org/library/how-to/

I recall that my TS-2 seemed to work better with a groovy mast and Craig Smith sails. The rig stiffness/spreader position/groovy spar bending characteristics matched the hull's specs quite nicely. Mine did not go as well with a stiffer, non-groovy spar. I believe that there was a rig building guide ...

there was a time when it was common for the shrouds to enter the mast and terminate (internally) on the part of the backstay fitting that pokes down into the masthead, with the idea that it might stiffen the mast above the hounds, but it doesn't really work so most have abandoned the practice.

terminate the wire on the hook that attaches the jib to the mast

taking it to the mast head gives no advantage and plenty of disadvantages

I use 0.15 wire from the top down to about 10 cm above the boom, then use string & a bowsie for adjustment. It minimized weight & windage aloft but more importantly, helps to keep the jib topping lift from hooking on the spreaders when slopping about because the wire is stiffer than string and tends...

I guess that one could use some sort of a sealed bag that, if pressurized, could potentially stiffen the hull and give a miniscule performance advantage This is a good one to present to the general membership - having seen a brand new V9 go to the bottom recently, I believe the ability to add some p...

I also like LiPo's due to their energy/weight ratio. Rather than fill the radio pot with a big battery high in the boat an alternative is to use smaller batteries in an attempt to lower the weight. Probably of minimal significance at most of our performance levels but if it makes you feel like you'r...

Hi Olivier

Thanks for responding. Heretofore there has been little evidence that the EXEC actually reads post on this board! Good to know you guys still interact with us.

Congratulations on a nice regatta - sorry I did not see the link you mentioned until after the fact.

Bruce Andersen

Can't be sure - no news on this website - is there another website for the IOM International Class Association that I may have missed that might be more current?

Yes - just finished!
We both must have missed the chatter on the official IOMICA Forum leading up to it.
I heard it was a pretty big race.

Indeed you have (since December of 2015 I believe) Forums are great to let everyone involved share knowledge The reason I chose to present these issues on the forum rather than via an e-mail is that they are issues that need to be disseminated throughout the entire IOMICA community E-mails are great...

saw it - great resource - sorry to have to share what I thought was my private forum though

but it is kind of fun, imagining myself as the only one in the world who still participates on this forum

I guess not

I have found the website for the upcoming WC's: http://www.iomwc2017.vrc-pierrelatte.com/ Too bad IOMICA has not seen fit to post this on our website! The WC site has preliminary allocation of places and NOR, with a note that they will be updated after January 2nd to give us an official allocation o...

hacked but now fixed