Go Back   Starboard Forums > Free Forum > Deboichet stiffnes index

Thread: Deboichet stiffnes index Reply to Thread
Your Username: Click here to log in
Image Verification
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Additional Options
Miscellaneous Options

Topic Review (Newest First)
23rd March 2007 06:03 PM
G
RE: Deboichet stiffnes index

Infact I had this problem in last season board....
Unfortunally now it's impossible readjust it without loosing some cm and I don't want to.
I'll try it and I'll let you know.
I couldn't try the r19 purchased fin too (lot of wind so far) . Any advice on it (not the custom one,just the purchased) ?
23rd March 2007 05:56 PM
Remi
RE: Deboichet stiffnes index

Hi G,

Even over 16 knots you can have unstable wind condition in direction and force in this case the R17 loose a bit compare to the R13 up wind only, down wind it's still fast.

I am using the R13 m at +8cm and love it, so you can change the angle for your old R13 to make a new good machine for your F161. Never try on this board a fin more forward in the box. Normaly we do this when we get spin out and I don't think so it's necessary on this board. But try it and let me know.

All the best
23rd March 2007 05:46 PM
G
RE: Deboichet stiffnes index

What you mean when say "unstable wind condition" ?
16-22 is a huge range so "unstable" should be bigger.Am I right?
Plus,doesn't the r17 come straight away from r13 profil (being larger on the tip)?
Another question is:
how a r13m+5 moved forward in the base (making bigger the distance of the chord from the end of the board) will behave in 161?
It's one of my old fin....
23rd March 2007 05:08 PM
Remi
RE: Deboichet stiffnes index

Hi G,

You right for the R17 soft rake + 6cm, it's a fast fin in stable wind over 16 knots to 22 with a 11m particulary down wind, but prefer the R13 profil who give me a beter instant acceleration and angle and make an important difference in unstable wind condition and also on a start line.

All the best
23rd March 2007 04:58 PM
G
RE: Deboichet stiffnes index

Hi Remi,
what's the difference between R13S+8 and R17S+6 over 16 kns (on 161) ?
I find the R17 very fast in that condition but it put me in trouble when it gets lighter.No way to keep a good angle if not very good powered up from sail....
I think that the R17 should work fine since 13-14 kns to 25 kns (but with 11,0 or 10,7,not down) .
Just my 2 cents
20th March 2007 04:13 PM
Remi
RE: Deboichet stiffnes index

Hi Expander,

If you have to order it, go definitely to the R19 soft -- rake +8cm or 6cm but not the soft one, it's too stiff. It's not a bad fin but the soft -- is a lot beter under 15 knots. And over 15 knots the R13 profil is beter due to less drags.

All the best
20th March 2007 02:43 PM
Expander
RE: Deboichet stiffnes index

--

Thank you Remi for your infinite patience.

At this point I wonder what could be field of utilization of a R19 +6 S; in other words: when to use or who could use it?

Regards,

- Exp.
20th March 2007 01:03 AM
Remi
RE: Deboichet stiffnes index

Hi Expander,

This is what I use right now :

Under 15 knots : R19 soft -- rake +8cm

Over I use R13 soft rake+ 8cm you accelerate more with the R13 profil in this condition compare to the R19. I prefer the soft one, you get more lift with it and very good also in extrem choppy water and waves.

The R13 medium rake +8cm, I like it also but from 16 to 20 in flat water, but with only 2 fins I am perfect.

All the best
19th March 2007 10:57 PM
Expander
RE: Deboichet stiffnes index

--

Thank you, Remi, for very quick reply.

So, if suggested 161 fin (R19) with rake +8 and stiffness S-- should be used in light to medium wind (from 7 to 15 knots) and not over, I wonder if same fin rake +6 and stiffness S could be used from 15 to 20 knots.

R13, instead, could be used only over 20 knots.

In other words, what do you think of this 161 fins quiver:

from 7 to 15 knots: R19 +8 S--
from 15 to 20 knots: R19 +6 S
over 20 knots: R13 +6 M


Cheers.
19th March 2007 10:54 PM
Remi
RE: Deboichet stiffnes index

Hi o2bnme,

3 Years ago their was only on rake, and Deboichet decide to mesure it like this :

From the original rake, you mesure at 68cm from the base and he reduce the angle by + 1 to + 12cm (vertical).

All the best
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT +7. The time now is 04:44 AM.