Welcome Guest
Catamaran Sailing at TheBeachcats.com Logo
Notifications
Clear all

AC tech

85 Posts
19 Users
0 Reactions
80.4 K Views
Aido
 Aido
(@aido)
Posts: 229
Member
 

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.


 
Posted : February 21, 2010 9:24 pm
ACE11
(@aus917)
Posts: 169
Member
 

Slight correction here Aido - the Arrow mast comes delivered to Brisvegas for $70 + a carton of Coronas for freight.


 
Posted : February 21, 2010 10:08 pm
(@waynemarlow)
Posts: 877
Chief Registered
 
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.


 
Posted : February 22, 2010 6:21 am
ncik
 ncik
(@nickb)
Posts: 935
Master Chief Registered
 

Bridle height does influence change in rake with cant...see image.

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


 
Posted : February 22, 2010 6:58 am
pgp
 pgp
(@pgp48)
Posts: 4470
Member
Topic starter
 

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.


 
Posted : February 22, 2010 7:30 am
macca
(@macca)
Posts: 981
Member
 

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... <img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />


 
Posted : February 22, 2010 8:30 am
pgp
 pgp
(@pgp48)
Posts: 4470
Member
Topic starter
 

You need to contact the web guy to get you in.


 
Posted : February 22, 2010 8:45 am
(@waynemarlow)
Posts: 877
Chief Registered
 
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... <img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />

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

<img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />


 
Posted : February 22, 2010 10:35 am
(@waynemarlow)
Posts: 877
Chief Registered
 
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 ).


 
Posted : February 22, 2010 10:39 am
(@wouter)
Posts: 9363
Three Star Admiral Registered
 
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


 
Posted : February 22, 2010 11:06 am
pgp
 pgp
(@pgp48)
Posts: 4470
Member
Topic starter
 

uh oh [size]


 
Posted : February 22, 2010 11:49 am
(@jalani)
Posts: 1370
Member
 

Wars have started over less...... <img src="<>/laugh.gif" alt="laugh" title="laugh" height="15" width="15" />

Nothing better than using a quote out of context - ehh Pete? <img src="<>/wink.gif" alt="wink" title="wink" height="15" width="15" /> <img src="<>/grin.gif" alt="grin" title="grin" height="15" width="15" />


 
Posted : February 22, 2010 12:34 pm
macca
(@macca)
Posts: 981
Member
 
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... <img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />

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

<img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />

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 <img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />


 
Posted : February 22, 2010 12:40 pm
pgp
 pgp
(@pgp48)
Posts: 4470
Member
Topic starter
 
Originally Posted by Jalani
Wars have started over less...... <img src="<>/laugh.gif" alt="laugh" title="laugh" height="15" width="15" />

Nothing better than using a quote out of context - ehh Pete? <img src="<>/wink.gif" alt="wink" title="wink" height="15" width="15" /> <img src="<>/grin.gif" alt="grin" title="grin" height="15" width="15" />

Did I!? <img src="<>/sick.gif" alt="sick" title="sick" height="15" width="15" /> Correct it please!


 
Posted : February 22, 2010 1:31 pm
scooby_simon
(@simonJlongstaff)
Posts: 3496
Captain Registered
 
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?


 
Posted : February 22, 2010 3:14 pm
macca
(@macca)
Posts: 981
Member
 

My normal one, but i'm not loosing any sleep over it..

When I need a login I will sort it out.


 
Posted : February 22, 2010 4:06 pm
scooby_simon
(@simonJlongstaff)
Posts: 3496
Captain Registered
 

There is noone called Macca registered on the F16 class forum.


 
Posted : February 22, 2010 4:07 pm
(@waynemarlow)
Posts: 877
Chief Registered
 
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 <img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" /> ah well the forums will be quiet without you.


 
Posted : February 22, 2010 4:41 pm
pgp
 pgp
(@pgp48)
Posts: 4470
Member
Topic starter
 

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! <img src="<>/shocked.gif" alt="shocked" title="shocked" height="15" width="15" /> Don't ask Wayne things like that! Ask HER what other tricks SHE can do!


 
Posted : February 22, 2010 5:27 pm
ncik
 ncik
(@nickb)
Posts: 935
Master Chief Registered
 
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


 
Posted : February 22, 2010 6:55 pm
ncik
 ncik
(@nickb)
Posts: 935
Master Chief Registered
 

is it dead?


 
Posted : February 25, 2010 12:29 am
 Karl
(@sogncab)
Posts: 3551
Member
 

Being able to slide the mast base is an interesting idea.


 
Posted : February 25, 2010 11:22 pm
(@Anonymous 37882)
Posts: 612
 

Can you cant ?
No, you can`t..
I`m sure I can cant.
Well you can`t cant unless you can keep mastrake and rig tension unchanged.
Can`t I do that ?
Well, you can if you cant.
I`m confused, think I`ll just sail the boat.


 
Posted : March 9, 2010 5:21 am
(@Anonymous 38725)
Posts: 5859
 

It's simple really, you can't cant unless you can cant without changing your wire tensions...


 
Posted : March 9, 2010 8:35 am
(@jalani)
Posts: 1370
Member
 
Originally Posted by Timbo
It's simple really, you can't cant unless you can cant without changing your wire tensions...

......or rake


 
Posted : March 9, 2010 8:50 am
Page 3 / 3
Secret Link