From:                              Murray  [Murray@argusheating.co.nz]

Sent:                               Monday, 23 March 2009 10:41 a.m.

To:                                   Fleur Simpkin; daarons@dml.co.nz; patrick.ashby@righthemisphere.com; steve@riggingshop.co.nz; blochbm@igrin.co.nz; kerry-c@xtra.co.nz; gregcathcollins@yahoo.co.nz; paramata1@xtra.co.nz; daveygj@clear.net.nz; Bruce.Davy@Forestresearch.co.nz; MikeDrummo@gmail.com; hamish@a-class.org.nz; sales@ericksenhonda.co.nz; bmharsant@xtra.co.nz; pyhooper@axtrix.co.nz; thekerrs@farmside.co.nz; rick@LambourneArchitects.co.nz; john.lindsay@silverfernfarms.co.nz; boatworksnz@gmail.com; John & Karen Marshall; w.muntz@xnet.co.nz; marknissen@gmail.com; mikenorton@woosh.co.nz; kevin.percy.electrical@xtra.co.nz; chrisnlee@xtra.co.nz; dsenn@ihug.co.nz; clear-ridge@xtra.co.nz; fdthomson@xtra.co.nz; Ken and Shirls; kitchensbykevin@xtra.co.nz; Benefieldsteve@xtra.co.nz; mncates@xtra.co.nz; samcross@xtra.co.nz; mark.d@xtra.co.nz; zeovitnz@paradise.net.nz; KAYEMANN@ihug.co.nz; tvcam@xnet.co.nz; dana-tenacity@usa.net; kev.mel@xtra.co.nz; e-statics@e-statics.net; Barham@xtra.co.nz

Subject:                          RE: AW: IACA Ballot on hydrofoils

 

Hello all

This is the first class ballot since we voted to prohibit hydrofoils and is the first using the internet. So we should have a fast result.

If this ballot fails there are other more conservative rule changes ready for balloting

The class executive didn’t want to confuse the class with to many options on one ballot.

 

Don’t believe the last part of this message: If this proposal should fail, the Hydrofoil commission has to go back to work again and come up with a new proposal. This proposal is liberal, but it’s strong enough to stop boats from flying successfully around the course. A new approach would have to be more restrictive and take the words of the existing rule 8 more literally. Basically this would mean banning all dagger boards that are not vertical! This will make the majority of the racing boats of today illegal and may destroy the class.

 

This is not true there are other ways of restricting the use of hydrofoils with out banning any boat sailing to day.

 

A few things to remember

1. The ballot needs a 2/3 yes vote to succeed, if only 3 people vote and 2 of those vote for the change, then it will pass.

2. Apathy will see a minority view point succeed so it’s important that you vote

3. If you are unsure then vote “no” that will leave things the way there are and will send a message to the decision makers in the class to look at different options.

 

On to the actual issues

 

This ballot is about getting rid of the hydrofoil rule.

 

The new ballot deletes Hydrofoil are not permitted from rule 8

Hydrofoils will now be legal; however there will be two restrictions.

 

a. No part of each hull or hull appendages below the waterline shall be less than 0.75 meters from the centre line.

b. Movable and retractable hull appendages shall be inserted from the top or be capable of being fully retractable into the hull.

 

8a is the old 1.5m underwater restriction that was originally appended to rule 4 it has been changed to 0.75m from centre line.

This will limit how far a hydrofoil attached to the hull can reach under boat

 

8b is new and is meant to limit the use of T foils and the like.

 

As you can see there is lots of room for experimentation.

Rudder tee foils are allowed as are trim tabs and control devices on the hydrofoil. If you can fit the parts of the tee foil down through the centre board case there is no reason you couldn’t assemble them back together again under the hull.

Fixed hydrofoils are allowed as are hydrofoils attached only to the beams.

 

Have rudders transom hung rudders been banded

One other concern is that the rule 8b states that movable hull appendages i.e. rudders shall be inserted from the top or be capable of being fully retractable into the hull

If you take this literally then transom hung rudders are not allowed as they don’t meet either criterion.

 

Rule 4 has also been updated to include the measurement of canted boards.

 

Cheers Murray

 

Make sure you vote.

 

 

 

 


From: Fleur Simpkin [mailto:T.F.3.SIM@xtra.co.nz]
Sent: Sunday, 22 March 2009 12:15
To: daarons@dml.co.nz; patrick.ashby@righthemisphere.com; steve@riggingshop.co.nz; blochbm@igrin.co.nz; kerry-c@xtra.co.nz; gregcathcollins@yahoo.co.nz; paramata1@xtra.co.nz; daveygj@clear.net.nz; Bruce.Davy@Forestresearch.co.nz; MikeDrummo@gmail.com; hamish@a-class.org.nz; sales@ericksenhonda.co.nz; bmharsant@xtra.co.nz; pyhooper@axtrix.co.nz; thekerrs@farmside.co.nz; rick@LambourneArchitects.co.nz; john.lindsay@silverfernfarms.co.nz; boatworksnz@gmail.com; John & Karen Marshall; w.muntz@xnet.co.nz; marknissen@gmail.com; mikenorton@woosh.co.nz; kevin.percy.electrical@xtra.co.nz; Murray ; chrisnlee@xtra.co.nz; dsenn@ihug.co.nz; Fleur Simpkin; clear-ridge@xtra.co.nz; fdthomson@xtra.co.nz; Ken and Shirls; kitchensbykevin@xtra.co.nz; Benefieldsteve@xtra.co.nz; mncates@xtra.co.nz; samcross@xtra.co.nz; mark.d@xtra.co.nz; zeovitnz@paradise.net.nz; KAYEMANN@ihug.co.nz; tvcam@xnet.co.nz; dana-tenacity@usa.net; kev.mel@xtra.co.nz; e-statics@e-statics.net; Barham@xtra.co.nz
Subject: Fw: AW: IACA Ballot on hydrofoils

 

Hi a class members

 

Here is some info for you on hydrofoils

 

Regards Trevor Simpkin

----- Original Message -----

Sent: Wednesday, March 18, 2009 3:27 PM

Subject: Fw: AW: IACA Ballot on hydrofoils

 

Hi Trevor

 

Could you please forward this to members

 

Cheers  Ken

----- Original Message -----

Sent: Wednesday, March 18, 2009 9:52 AM

Subject: R: AW: IACA Ballot on hydrofoils

 

Dear Presidents,


As promised in the last e-mail, find attached the "Explanation Document" (translation will follow)
This will help you all to understand from a technical point of view how the new rules control the “hydrofoils effect” and how much a “flying boat” may be far or close.

I believe the work has been a very professional one, and now all members have enough information to evaluate all possibilities.

I want to thank once more all members of the Hydrofoils Commission for the hard work done and for the huge amount of hours they spent on this subject.

At this stage the choice depends on you and on your members only.

Best regards

 

International A Class Association

 

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Stefano Sirri – President