Mast foot position

Use this section to ask any questions over current class rules or to make suggestions over new rules that may be worthy of consideration.
AndyRSA409
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Mast foot position

Postby AndyRSA409 » Thu Jan 17, 2019 2:37 pm

Did we clarify whether it is legal to move the mast foot position to the forward pin? I believe this question was raised a while back but not sure if there was an interpretation on it/

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Re: Mast foot position

Postby Robtaylor » Thu Jan 17, 2019 2:44 pm

There is no interpretation necessary in this case. The Musto Skiff Class Rules are closed class rules, meaning anything not specifically permitted is prohibited. Nowhere in the class rules does it specifically permit the mast foot to be moved in the step.

Class rule C.6.1.1 deals with any permitted modifications to the boat from its supplied state and refers to the rigging manual (http://www.mustoskiff.com/downloads/Mus ... e-v0.4.pdf) for how it should be set up. Page 5 of this manual clearly shows the positions of the bolts in the mast step which control the position of the mast foot in the boat.

In light of the detail in the rigging manual and no specific permission in the class rules, it is not permitted to move the mast foot from the position as supplied.

If this is in fact common practice within the fleet, the pragmatic approach would be a class rule amendment permitting the movement of mast foot bolts (but not the most forward or most aft bolts which have other rigging attached).
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Re: Mast foot position

Postby PaulM » Thu Jan 17, 2019 4:14 pm

To throw the cat in here.... I recall the spreader set up is also in the rigging guide. So potentially this is also a closed rule???

All be it I would be confident a random selection would provide a variety.
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Re: Mast foot position

Postby paul manning » Thu Jan 17, 2019 6:52 pm

The spreader set up is in the tuning guide, not the rigging guide.

However, technical have also taken into account other details in the rigging guide such as the lever hole and shroud plates into consideration.
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Re: Mast foot position

Postby Rick » Fri Jan 18, 2019 9:05 am

PaulM wrote:To throw the cat in here.... I recall the spreader set up is also in the rigging guide. So potentially this is also a closed rule???

All be it I would be confident a random selection would provide a variety.


The spreader settings are not detailed in the rigging guide.

When I wrote that document I didn’t expect it to be referenced for rules.
Rick Perkins. GBR

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Re: Mast foot position

Postby PaulM » Fri Jan 18, 2019 9:41 am

I stand corrected. Serves me right for speaking before I checked to make sure.
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Re: Mast foot position

Postby AndyRSA409 » Fri Jan 18, 2019 10:49 am

The spreader settings are not detailed in the rigging guide.

When I wrote that document I didn’t expect it to be referenced for rules.
Rick Perkins. GBR


That is where the confusion has come in the past. I have heard of people trying different positions for their mast foot, and as Rick mentioned above - the rigging guide was never intended to be a reference for the class rules.

In light of Rob's comments regarding closed rules... Do the technical committee need to consider a revision allowing movement of the mast foot?

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Re: Mast foot position

Postby Rick » Fri Jan 18, 2019 3:48 pm

The rigging guide is a good reference for what is "as supplied" although it should be checked against a current spec. boat as I wrote it some time ago.

The rules should permit sailors to change:

- rig adjusters
- spreaders
- vang bolt position
- mast foot

Whilst all these are not shown in micro detail in the rigging guide you can zoom in to see the position of the spreaders if you wanted to argue their setting although the bracket has changed since that guide was written. If you max zoom 15 & 61. you can see the spreaders; although as they are the bottle screw type not the deflection.

Step 21 & 68 is specific on the pin position of the rig adjuster; I never understood why people argue the mast foot can't be moved but the pins can ... seems the same to me ... although not the intention to restrict either ...

I'd support a rule change to correct this as this was never the intention; or perhaps more simply edits to the rigging guide.
Rick Perkins. GBR

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Re: Mast foot position

Postby Djric » Sat Jan 19, 2019 11:32 am

Thanks Rick

The relevant Class Rule changes have been written and will be formalised before the next worlds

David Rickard


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