Marine LED bulbs and fittings for boats. Best Prices & Free Worldwide Shipping.
Page 2 of 2 < 1 2
Topic Options
Rate This Topic
#75159 - 01/17/07 10:37 AM Re: Mast rake [Re: ejpoulsen]
fin. Offline
Carpal Tunnel

Registered: 02/06/06
Posts: 3348
bump

Top
#75160 - 01/17/07 06:21 PM Re: Mast rake [Re: fin.]
pkilkenny Offline
enthusiast

Registered: 01/15/04
Posts: 202
Hey Team,

For me - (5'10''. 150lbs.), Glaser Fat Head, Taipan, solo :

- Neutral rake ( playing w/ rake sternward you'll sail higher but you'll be slow dragging your rudders upwind at a 30 degree angle).
- 30+ on old style Loos gauge (Fat Head is slow with a bendy superwing mast).
- remove the prebend (sweep spreaders foreward), or else you'll have to derotate radically (again w/ Glaser Fathead)to get competitve height beating (zero power...).

PK

Top
#75161 - 01/17/07 09:03 PM Re: Mast rake [Re: pkilkenny]
Robi Offline
Carpal Tunnel

Registered: 07/08/04
Posts: 2718
Loc: St Petersburg FL
Paul, my diamonds are at 35 on the loos gauge and the spreaders are all the way in. I do not know how many inches of prebend though. What do ya think? I also run zero rake, one or two up. I have noticed rooster tails though, specially when I am hauling butt around the course.

Top
#75162 - 01/17/07 10:49 PM Re: Mast rake [Re: Robi]
pkilkenny Offline
enthusiast

Registered: 01/15/04
Posts: 202
Quote:

Paul, my diamonds are at 35 on the loos gauge and the spreaders are all the way in. I do not know how many inches of prebend though. What do ya think? I also run zero rake, one or two up. I have noticed rooster tails though, specially when I am hauling butt around the course.




Hiya Robi,

I'm not the ideal weight for the F16 one up ( my guess is about 180 - 190lbs. is about optimal in the S.F. Bay Area...).The fat head main has been a great compensatory measure for me and the intended engineering/design of the sail has worked best for me when I : 1. stabalized the lateral bend of the mast (tight diamonds) 2. reduced the prebend (I had my spreaders angled waay back to help with my being overpowered above 12knts.)3. With less prebend (more power), I've had to work in a combination of less rotation to weather and lots of downhall ( again above about 12knts.).Also, rooster tails look cool and are SUPER slow... You're footing without dropping a bit of mainsheet (to weather again) or you're raked too far aft or your body positioning on the hull is not optimal.
Finally, shake off the Tradewinds nonsuccess, we're all learning to sail these boats fast and the occasional butt kicking keeps the dream vivid...

PK

Top
#75163 - 01/19/07 08:55 PM Re: Mast rake [Re: pkilkenny]
ejpoulsen Offline
old hand

Registered: 05/08/02
Posts: 1036
Loc: Central California
Just took this photo--it seems like I've got quite a bit of rake. It has been a fast set up with heavy air but too much helm.


Attachments
97233-picture050cropped.jpg (189 downloads)

_________________________
Eric Poulsen
A-class USA 203
Ultimate 20
Central California

Top
#75164 - 01/20/07 02:17 AM Re: Mast rake [Re: ejpoulsen]
DougSnell Offline
Pooh-Bah

Registered: 10/31/05
Posts: 1690
Loc: Seabrook, TX
EJ:

If anything like my old Hobie 16 back in the 80's, when you rake mast back you need to rake rudders forward to get rid of helm.

Worth a try,

Doug


Edited by DougSnell (01/20/07 02:18 AM)

Top
Page 2 of 2 < 1 2


Moderator:  phill, Rolf_Nilsen, scooby_simon