Search found 304 matches

by Chairman
14 Apr 2005, 20:55
Forum: General IOM
Topic: IOM Fin material
Replies: 7
Views: 8807

will a flat plate be effective? A flat plate as a fin can be remarkably effective, especially if you do your best to round the leading edge, and chamfer the trailing edge. It'll never be as good as a "proper" foil with a "proper" aerofoil section, because it will stall rather early, its maximum lif...
by Chairman
07 Apr 2005, 12:23
Forum: General IOM
Topic: Jib Leech to Main Luff Relationship
Replies: 3
Views: 6453

Re: Jib Leech to Main Luff Relationship

Maybe Lester has a spreadsheet covering this. Hi Larry Wish I did! I've read two things on this topic: (a) Get the jib as close to the main as possible. (b) When the wind comes up, it might be helpful to move the jib away from main, to "open the slot" without increasing jib sheeting angle. And, I'v...
by Chairman
04 Apr 2005, 21:16
Forum: Class Associations and Class Management
Topic: ISAF-RSD Web site down, IOMICA site hosting selected docs
Replies: 0
Views: 5009

ISAF-RSD Web site down, IOMICA site hosting selected docs

The ISAF-RSD website is not working at the moment. The IOMICA Web site is hosting a few of the more important IOM documents for now.
by Chairman
04 Apr 2005, 12:31
Forum: Class Rules
Topic: Mat'ls: keel & rudder; mast, boom, stand. rig. fittings
Replies: 13
Views: 17389

I think (entirely unofficially, of course!) that fittings are generally unrestricted with regards to materials, construction, and fastening and/or attachment, except where a particular section of the rules might have something more definite to say. So it seems that the next revision of the class rul...
by Chairman
03 Apr 2005, 18:48
Forum: Class Rules
Topic: Mat'ls: keel & rudder; mast, boom, stand. rig. fittings
Replies: 13
Views: 17389

Re: Mat'ls: keel & rudder; mast, boom, stand. rig. fitti

...what is the difference between Materials and Construction, that they are contained in different numbered sections? Hi Charles Even though there is some natural overlap between these concepts, I guess we can agree that these two headings are not used with total consistency in the rules. Sections ...
by Chairman
23 Mar 2005, 15:19
Forum: General IOM
Topic: Passing away of Mario Jorini, ITA
Replies: 0
Views: 4246

Passing away of Mario Jorini, ITA

Dear IOM radio sailors I have just heard the sad news of the passing away of Mario Jorini, ITA, a great friend and supporter of radio sailing both in ITA and world-wide. I am sure you will all join us in expressing condolences and the very best wishes to his family and many friends. http://www.model...
by Chairman
07 Mar 2005, 22:33
Forum: Events and Event Management
Topic: european championchip 2005??
Replies: 1
Views: 3884

IOM European Championships are held every second year. IOM World Championships are help in every other year. The next Europeans will be in 2006.
by Chairman
26 Feb 2005, 21:04
Forum: General IOM
Topic: Contacting Marko Majic...
Replies: 0
Views: 3760

Contacting Marko Majic...

Does anyone know Marko's home phone number, please? Need to contact him urgently. E-mail or private message me, please! Thanks.
by Chairman
24 Feb 2005, 08:22
Forum: Class Rules
Topic: Hull length + draft
Replies: 1
Views: 5576

Re: Hull length + draft

The hull length is stated as 1000mm, is this the overall length of the hull from bow to stern? The reason I am asking is I have a Ragtime hull which I am in the process of assembling. There is a rake on the Bow of +/- 5degrees. When I measure her overall length it is 1000mm, when I measure her on t...
by Chairman
21 Feb 2005, 09:14
Forum: Class Rules
Topic: Interpretation 2005-IOM-1
Replies: 11
Views: 15304

Hi Richard You seem to have submitted GBR requests to the IOM Forum for discussion. No problem there, of course, I'm sure the Forum members will be only too happy to let you have their comments. But if you'd like the Technical or the Measurement Committee to look at them, could I suggest you submit ...
by Chairman
17 Feb 2005, 19:22
Forum: Class Rules
Topic: Sail Markings Question?
Replies: 15
Views: 19376

Chairman wrote:If a measurer is in doubt...
Steve Landeau wrote:Checking the sail numbers is the responsibility of the owner and event measuring.
Hi Steve

Sure. If an event measurer is in doubt...
by Chairman
17 Feb 2005, 14:50
Forum: Class Rules
Topic: Sail Markings Question?
Replies: 15
Views: 19376

I underatand Lester indicated that it was common to consider the word "ply" to mean from the same lot/bolt/roll of material Hi Ralph I think what I actually said was, "...it says 'The body of the sail shall consist of the same ply throughout', and this is usually interpreted to mean that, literally...
by Chairman
16 Feb 2005, 20:36
Forum: Class Rules
Topic: Sail Markings Question?
Replies: 15
Views: 19376

Is it then possible to have your 1m sails in a different color apart from white? Hi Ray Sure, the panels just need to be all the "same". But, you might run into problems with the visibility of your sail number. If a measurer is in doubt, they would put your sails side by side with a "regular" rig, ...
by Chairman
16 Feb 2005, 18:46
Forum: Class Rules
Topic: Sail Markings Question?
Replies: 15
Views: 19376

In addition to the Class Rules, you also need to check the ERS (Equipment Rules of Sailing), because there can be a definition in the ERS that makes a difference as to whether something is legal or not. An, erm, interesting example is the ERS definition of "seam" -- two overlapping panels. No proble...
by Chairman
14 Feb 2005, 08:45
Forum: Class Rules
Topic: Foam Hull
Replies: 17
Views: 20877

the rule proposal referred to would limit "thinness" or (in other words) establish a minimum thickness; right, Lester? Hi Charles Yes, exactly so. And just so no one misunderstands what is going on here, let me summarise: It is a near certainty that the issue of fin "thinness" will be put to an own...
by Chairman
13 Feb 2005, 22:00
Forum: About the IOM Forum -- New, or want to register? Please read...
Topic: Spam "attacks" on IOM Forum
Replies: 1
Views: 21670

Hi IOMers We've changed the registration process a little, and now all new applications to register as a Forum member will be human-processed rather than automatically accepted. An application to register will be reviewed by one of the Forum Administrators (from the InfoComms Sub-Committee). If the ...
by Chairman
13 Feb 2005, 21:13
Forum: General IOM
Topic: The Forest vs The Trees
Replies: 20
Views: 21841

Charlie Wahl's opinions are his personal beliefs and should not be read as reflecting general sentiment in the United States. Hi Roy Of course. No one I've spoken to seems to think otherwise. But on the subject of restricting fin thickness, I know there is enough interest in this issue to make it a...
by Chairman
13 Feb 2005, 12:01
Forum: Class Rules
Topic: Foam Hull
Replies: 17
Views: 20877

Can anybody explain me what could be the purpose to forbid the foam as building material? It is not an expensive or high tech material like kevlar or else. It is cheap, easy to work with, could be perfect for home build. Hi Gyula Your question and observations deserve a careful answer. My, ah, unof...
by Chairman
02 Feb 2005, 19:46
Forum: General IOM
Topic: Weight Distribution? - Triple Crown
Replies: 11
Views: 13268

I found it interesting that in Arcos some (narrow) boats had maximum weight(75g) rudders. Hi Anders I'm not convinced about the pitching moment, though it sounds plausible. What I think more likely is that, if the rudder is carbon with a carbon stock, then there is about 55 gm you can put, as lead,...
by Chairman
02 Feb 2005, 15:24
Forum: General IOM
Topic: Weight Distribution? - Triple Crown
Replies: 11
Views: 13268

If you want to race, do you want to seriously test yourself in competitive racing? If so, bite the bullet and float the hull on her lines. If not, no, 6 oz unbalanced fore-aft doesn't matter that, erm, much...!
by Chairman
30 Jan 2005, 14:19
Forum: General IOM
Topic: The Forest vs The Trees
Replies: 20
Views: 21841

Re: So much for this forum, what about the IOM class?

where should the IOM class go, and does that involve changes? A pleasure to read Charles' informed comments. Rule proposal #1, keels To achieve the above-stated goal, simply require that the keel foil have a minimum thickness of, say, 10% of the chord parallel to the waterline An excellent proposal...
by Chairman
21 Jan 2005, 09:35
Forum: About the IOM Forum -- New, or want to register? Please read...
Topic: Spam "attacks" on IOM Forum
Replies: 1
Views: 21670

Spam "attacks" on IOM Forum

Hi IOMers Just to let you know we are experiencing a number of new "members" joining, who are only wanting us to click on their Web site links or send them e-mail. We are deleting them as soon as we discover them, but please let us know if we've missed any. And, please let us know if we've deleted y...
by Chairman
14 Jan 2005, 08:21
Forum: General IOM
Topic: Robbe windstar?
Replies: 3
Views: 7243

Also as far as I know, there is a problem with early versions of the kit. The interior of the hull was pigmented, contrary to the class rules. Although "everyone knows" Robbe have not hidden carbon fibre in there, such a hull cannot be certificated.
by Chairman
13 Jan 2005, 09:18
Forum: General IOM
Topic: The Forest vs The Trees
Replies: 20
Views: 21841

I doubt (Lester can clarify) that the policy was ever meant to be exclusive or elitest - but simply focused. Hi Murray Certainly. There are a number of R/C sailing discussion sites. This one is intended for active IOM sailors. The site is hosted and supported by IOMICA, the class association for IO...
by Chairman
11 Jan 2005, 11:52
Forum: Class Rules
Topic: Interpretation 2005-IOM-1
Replies: 11
Views: 15304

Re: Interpretation 2005-IOM-1

The interpretation is an administrative clarification confirming that previously measured rigs and sails can be transferred to a newly registered hull without any need for re-measurement. An owner may seek registration and certification of a hull which is to be used with previously measured rig(s) a...
by Chairman
21 Dec 2004, 09:54
Forum: General IOM
Topic: Multiple Fins and Rigs
Replies: 7
Views: 24746

Re: Multiple Fins and Rigs

RoyL wrote:is this a direction the members want the class to go in?
Terrific "heads up" from Roy on this. Comments from all very welcome.
by Chairman
19 Dec 2004, 20:16
Forum: Events and Event Management
Topic: Distances for IOM courses.
Replies: 17
Views: 22276

Noting your comments regarding the "Race Management Manual" , what is the purpose & intended audience of the manual. i.e Is it to provide guidelines or mandates ? Is it for local, regional & International events ? Does it dictate the type of courses we will sail in IOMs? Hi Mark Guidelines, aimed a...
by Chairman
17 Dec 2004, 21:46
Forum: General IOM
Topic: What is the best IOM Boat????
Replies: 11
Views: 17348

Re: What is the best IOM Boat????

My question to All is simple: What is the best IOM boat !?? No such thing. Any design, and an IOM is no exception, is a compromise. If you mainly sail when conditions are at the top of No.1 rig, for example, then a TS-2 would be an excellent choice. If you mainly sail in very light winds, an Italik...
by Chairman
14 Dec 2004, 08:56
Forum: Events and Event Management
Topic: Distances for IOM courses.
Replies: 17
Views: 22276

Re: Distances for IOM courses.

I have not been able to find any published information on typical distances used in IOM racing. ... Are there any guidelines which link distances of marks (and starting lines) from the control area to the height of the control area above the water. Hi Arthur Good questions! IOMICA has a "Race Manag...
by Chairman
04 Dec 2004, 22:11
Forum: Class Associations and Class Management
Topic: New look and organization for www.iomclass.org
Replies: 1
Views: 5414

Re: New look and organization for www.iomclass.org

VCinfocomms wrote:I have just updated the IOMICA website with a new look and hopefully a better and clearer organization.
Hi Anders

Terrific! Much better!