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Re: AC tech [Re: ncik] #204049
02/21/10 09:24 PM
02/21/10 09:24 PM
Joined: Feb 2008
Posts: 242
Brisveagas
Aido Offline
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Brisveagas
3M do the shark film I think. Not as simple as slapping it on as it has to be made to suit the speed and length of you boat. An expensive exercise. Not sure that it's legal in any dinghy or cat classes either. I know polymer is definitely banned.

You would have to have some serious skills to attempt carbon beams and masts. And when time is factored into the equation the price becomes outrageous.


Aido
Viper 288
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Re: AC tech [Re: Aido] #204050
02/21/10 10:08 PM
02/21/10 10:08 PM
Joined: Nov 2007
Posts: 170
Brisvegas
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Brisvegas
Slight correction here Aido - the Arrow mast comes delivered to Brisvegas for $70 + a carton of Coronas for freight.

Re: AC tech [Re: ncik] #204067
02/22/10 06:21 AM
02/22/10 06:21 AM
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waynemarlow Offline
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Originally Posted by ncik
Originally Posted by Darryn

If the forestay remains the same length and one side stay is lengthened with the other shortened wont that reduce the mast rake slightly?

Darryn


yep, if the forestay to bridle connection is above the mast base relative to the platform.

if they are at same height then rake will not change. the canting rotation occurs around a line from mast base to bridle (imagine a triangle being rotated about one of it's sides)

this is if you measure rake from mast top to rear beam on centreline.


Its irrevelent at what height the front stay joins the front bridle, as long as the front stay base remains on the centre line, as soon as there is any rotation of the top point an arc will form however small ( basically the radius of the distance between top point and bottom point looking straight down ), causing the mast rake to change.

I personally would favour a change in the rule to allow mast rake, it would on long distance racing help reduce an over powered rig. After all we are a semi develpment class, whats the problem.

However from other class's which have gone down this route, around short form racing, the time lost to set up the canted rig far out ways just sailing the boat and keeping in front in clean air.

Any way Macca is bored and just raising pedantic points of no real worth to the class to basically wind people up. When Macca designs, builds and races a boat within the class then I think we should start to take more notice of his internet scribblings. Up until that point he is just another interested internet scribe in my view and his views are just that, internet musings.

Re: AC tech [Re: waynemarlow] #204068
02/22/10 06:58 AM
02/22/10 06:58 AM
Joined: Oct 2005
Posts: 951
Brisbane, Queensland, Australi...
ncik Offline
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Bridle height does influence change in rake with cant...see image.

Other than that, I agree with your sentiments about macca.

Attached Files
Last edited by ncik; 02/22/10 07:01 AM.
Re: AC tech [Re: ncik] #204070
02/22/10 07:30 AM
02/22/10 07:30 AM
Joined: Jan 2009
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pgp Offline OP
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F.5.1 RULES
(a) The bowsprit shall be on the longitudinal centreline of the boat

"THESE RULES ARE CLOSED CLASS RULES
WHEREBY IF IT DOES NOT SPECIFICALLY SAY THAT YOU MAY THEN YOU SHALL NOT."

http://www.formula16.net/forum/showthread.php?t=163

There is an amended version in the works.


Last edited by pgp; 02/22/10 07:42 AM.

Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: AC tech [Re: pgp] #204072
02/22/10 08:30 AM
02/22/10 08:30 AM
Joined: Jun 2001
Posts: 1,021
Australia
macca Offline
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Event though I have paid my membership fee, I am still unable to log into the F16 forum thingy, so I can't download the latest and greatest rules.

For all I know, the Minimum weight has been changed to 125kg and carbon beams and masts are banned... smile



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Re: AC tech [Re: macca] #204073
02/22/10 08:45 AM
02/22/10 08:45 AM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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You need to contact the web guy to get you in.


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: AC tech [Re: macca] #204080
02/22/10 10:35 AM
02/22/10 10:35 AM
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waynemarlow Offline
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Originally Posted by macca
Event though I have paid my membership fee, I am still unable to log into the F16 forum thingy, so I can't download the latest and greatest rules.

For all I know, the Minimum weight has been changed to 125kg and carbon beams and masts are banned... smile


Dreams are free, my advice is to dream of a very pretty girl and ask her for her telephone number, when she replies and you wake up, try ringing that number. The odds of that same very pretty girl being on the end of the line would be about the same as "the Minimum weight has been changed to 125kg and carbon beams and masts are banned" smile

Re: AC tech [Re: ncik] #204083
02/22/10 10:39 AM
02/22/10 10:39 AM
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waynemarlow Offline
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Originally Posted by ncik
Bridle height does influence change in rake with cant...see image.

Other than that, I agree with your sentiments about macca.


Doing a Macca here, altering the front stay bottom position alone will not cant the rig, the side stays length have to be altered or the mast base position ( easiest and most beneficial in our boats ).

Re: AC tech [Re: pgp] #204085
02/22/10 11:06 AM
02/22/10 11:06 AM
Joined: Jun 2001
Posts: 9,582
North-West Europe
Wouter Offline
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Quote

"THESE RULES ARE CLOSED CLASS RULES
WHEREBY IF IT DOES NOT SPECIFICALLY SAY THAT YOU MAY THEN YOU SHALL NOT."



If this is a serious proposal then I'm furiously against it.

This goes against everything the F16 was funded upon.

Wouter


Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands
Re: AC tech [Re: Wouter] #204089
02/22/10 11:49 AM
02/22/10 11:49 AM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
Carpal Tunnel
pgp  Offline OP
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uh oh [size:11pt] [/size]


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: AC tech [Re: pgp] #204095
02/22/10 12:34 PM
02/22/10 12:34 PM
Joined: Feb 2005
Posts: 1,382
Essex, UK
Jalani Offline
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Wars have started over less...... laugh

Nothing better than using a quote out of context - ehh Pete? wink grin


John Alani
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Re: AC tech [Re: waynemarlow] #204096
02/22/10 12:40 PM
02/22/10 12:40 PM
Joined: Jun 2001
Posts: 1,021
Australia
macca Offline
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Originally Posted by waynemarlow
Originally Posted by macca
Event though I have paid my membership fee, I am still unable to log into the F16 forum thingy, so I can't download the latest and greatest rules.

For all I know, the Minimum weight has been changed to 125kg and carbon beams and masts are banned... smile


Dreams are free, my advice is to dream of a very pretty girl and ask her for her telephone number, when she replies and you wake up, try ringing that number. The odds of that same very pretty girl being on the end of the line would be about the same as "the Minimum weight has been changed to 125kg and carbon beams and masts are banned" smile


Wow!!! I just had the most amazing dream!!!

The pretty girl answered when I called the number, just like you said! Fantastic stuff Wayne, what other tricks do you do??

Can't wait to see the new class rules smile


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Re: AC tech [Re: Jalani] #204099
02/22/10 01:31 PM
02/22/10 01:31 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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pgp  Offline OP
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Originally Posted by Jalani
Wars have started over less...... laugh

Nothing better than using a quote out of context - ehh Pete? wink grin


Did I!? sick Correct it please!


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: AC tech [Re: macca] #204100
02/22/10 03:14 PM
02/22/10 03:14 PM
Joined: Feb 2004
Posts: 3,528
Looking for a Job, I got credi...
scooby_simon Offline
Hull Flying, Snow Sliding....
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Looking for a Job, I got credi...
Originally Posted by macca
Event though I have paid my membership fee, I am still unable to log into the F16 forum thingy, so I can't download the latest and greatest rules.




What user name or emial address did you register with on the forum Macca?


F16 - GBR 553 - SOLD

I also talk sport here
Re: AC tech [Re: scooby_simon] #204104
02/22/10 04:06 PM
02/22/10 04:06 PM
Joined: Jun 2001
Posts: 1,021
Australia
macca Offline
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macca  Offline
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My normal one, but i'm not loosing any sleep over it..

When I need a login I will sort it out.


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Re: AC tech [Re: macca] #204105
02/22/10 04:07 PM
02/22/10 04:07 PM
Joined: Feb 2004
Posts: 3,528
Looking for a Job, I got credi...
scooby_simon Offline
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Looking for a Job, I got credi...
There is noone called Macca registered on the F16 class forum.


F16 - GBR 553 - SOLD

I also talk sport here
Re: AC tech [Re: macca] #204111
02/22/10 04:41 PM
02/22/10 04:41 PM
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Posts: 893
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waynemarlow Offline
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Originally Posted by macca
My normal one, but i'm not loosing any sleep over it..


Dreaming about pretty girls answering telephones and 125kg F16's smile ah well the forums will be quiet without you.

Re: AC tech [Re: macca] #204118
02/22/10 05:27 PM
02/22/10 05:27 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
Carpal Tunnel
pgp  Offline OP
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"Wow!!! I just had the most amazing dream!!!

The pretty girl answered when I called the number, just like you said! Fantastic stuff Wayne, what other tricks do you do"??

Dude, you're really scaring me now! shocked Don't ask Wayne things like that! Ask HER what other tricks SHE can do!


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: AC tech [Re: waynemarlow] #204125
02/22/10 06:55 PM
02/22/10 06:55 PM
Joined: Oct 2005
Posts: 951
Brisbane, Queensland, Australi...
ncik Offline
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ncik  Offline
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Originally Posted by waynemarlow
Originally Posted by ncik
Bridle height does influence change in rake with cant...see image.

Other than that, I agree with your sentiments about macca.


Doing a Macca here, altering the front stay bottom position alone will not cant the rig, the side stays length have to be altered or the mast base position ( easiest and most beneficial in our boats ).


arrrgghhh. my explanation is not enough...looking at the picture it is arranged for two boats, one with a high bridle (as normal for a beach cat) and one with a low bridle (not normal and used for illustrative purposes only).

the rakes are shown for the upright positions of the rigs.

then beside each of those is the canted rigs (with sidestay adjustment) for high and low bridles. notice that the high bridle decreases rake with cant and the low bridle increases rake with cant.

the only way to cant the rig without also changing the rake is for the forestay attachment to be at the same height as the mast step. this is with a fixed length forestay which our class rules require with the rig tension adjustment requirements.

mmm...pretty girls on pretty boats...it is my happy place


Last edited by ncik; 02/22/10 07:04 PM.
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