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Wing mast trim #274053
07/21/14 08:38 AM
07/21/14 08:38 AM
Joined: Jan 2005
Posts: 105
Bloomington, IN
jbecker Offline OP
member
jbecker  Offline OP
member
Joined: Jan 2005
Posts: 105
Bloomington, IN
I recently moved from an old Tiger to a less old Viper. I've heard setting the rotation on the "wing mast" type of mast can have a significant effect on performance. Any tips on how to find the ideal mast rotation settings upwind/downwind?


Jeff
Tiger 849
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Re: Wing mast trim [Re: jbecker] #274061
07/21/14 05:50 PM
07/21/14 05:50 PM
Joined: Feb 2012
Posts: 54
D
dr5e14w Offline
journeyman
dr5e14w  Offline
journeyman
D
Joined: Feb 2012
Posts: 54
See the link below for basic upwind and down wind information for the viper.

http://www.goodalldesign.com.au/Catamaran/index.php/owners-corner/tuning/32-c2-general-settings-2

Re: Wing mast trim [Re: jbecker] #274062
07/21/14 06:03 PM
07/21/14 06:03 PM

S
Scarecrow
Unregistered
Scarecrow
Unregistered
S


More reading here. This one includes theory not just numbers.

Re: Wing mast trim [Re: ] #274065
07/21/14 09:25 PM
07/21/14 09:25 PM
Joined: Jan 2005
Posts: 105
Bloomington, IN
jbecker Offline OP
member
jbecker  Offline OP
member
Joined: Jan 2005
Posts: 105
Bloomington, IN
Good references. Thanks!


Jeff
Tiger 849
Re: Wing mast trim [Re: jbecker] #274071
07/22/14 08:55 AM
07/22/14 08:55 AM
Joined: Nov 2011
Posts: 376
SE MI / NE IN
rehmbo Offline
enthusiast
rehmbo  Offline
enthusiast
Joined: Nov 2011
Posts: 376
SE MI / NE IN
If you're feeling especially geeky, check this one: http://www.tspeer.com/Wingmasts/teardropPaper.htm

Or this one written by the same guy - a bit more readable: here

BTW - Mr. Speers knows his stuff. I'll let you Google him.

Last edited by rehmbo; 07/22/14 09:05 AM.

Jeff R

H18, C2 USA1193
cramsailing.com
crescentsail.com
Re: Wing mast trim [Re: rehmbo] #274086
07/22/14 05:33 PM
07/22/14 05:33 PM
Joined: Jan 2005
Posts: 105
Bloomington, IN
jbecker Offline OP
member
jbecker  Offline OP
member
Joined: Jan 2005
Posts: 105
Bloomington, IN
I'm totally geeky all the time. cool Thanks for the Tom Speer links.

Last edited by jbecker; 07/22/14 05:33 PM.

Jeff
Tiger 849
Re: Wing mast trim [Re: dr5e14w] #274278
07/29/14 12:00 PM
07/29/14 12:00 PM
Joined: Mar 2008
Posts: 55
Minneapolis
Mpls_Nacra Offline
journeyman
Mpls_Nacra  Offline
journeyman
Joined: Mar 2008
Posts: 55
Minneapolis
This is a great work sheet. Any one have this for the Nacra F16?

http://www.goodalldesign.com.au/Catamaran/index.php/owners-corner/tuning/32-c2-general-settings-2

Thanks
Dave

Last edited by Mpls_Nacra; 07/29/14 12:21 PM.

Dave Foster
Minneapolis
Nacra F16
Re: Wing mast trim [Re: jbecker] #274319
07/30/14 09:35 PM
07/30/14 09:35 PM
Joined: Dec 2010
Posts: 4
R
RG7351 Offline
stranger
RG7351  Offline
stranger
R
Joined: Dec 2010
Posts: 4
Dave, here you go:

http://www.lindstaedt.com/manuals/basic_trimsheet_nacra_f16.pdf

I have found that the Nacra F16 is sensitive to setup, especially upwind. But maybe this is true of all the F16s? I'm only starting to figure out my new boat..

Re: Wing mast trim [Re: jbecker] #274997
08/26/14 12:32 PM
08/26/14 12:32 PM
Joined: Feb 2012
Posts: 7
F
felixshmak Offline
stranger
felixshmak  Offline
stranger
F
Joined: Feb 2012
Posts: 7
Dave,

Personally, I think the Linstaedt trim sheet value on the diamond tension is far too tight though. I am using 25 on PT1 gauge for around 10 knots of wind for 2 up (28 on PT1 for 1 up)


Felix
NACRA F16

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