| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1967.1 | | BOXORN::HAYS | Wave that Flag, Wave it wide and high! | Thu Nov 19 1992 09:23 | 22 |
| RE: .0 by OTOOA::MOWBRAY "This isn't a job its an Adventure"
> Why would someone design a boat with a fractional rig ?
The main is a less efficient sail than the jib close hauled, but a fractional
rig gives more control over mainsail shape than a masthead rig. If you don't
want to spend a lot of time getting sail shape just right, a masthead rig is
probably a better choice. If you do, I think a fractional rig is a slightly
faster rig.
A fractional rig has more control over mainsail shape as the fore and back
stays bend the mast. This bending action on the mast pulls a controllable
amount of curvature (by adjusting backstay tension) out of the center of the
mainsail, allowing a fuller cut mainsail for more power, and still allowing
the mainsail to be adjusted flatter for better pointing.
Also, off the wind, a slightly larger mainsail is an advantage.
As you guessed, the main is more important in a fractional rig.
Phil
|
| 1967.2 | No gorillas needed | RDGENG::BEVAN | | Thu Nov 19 1992 09:39 | 4 |
| > Why would someone design a boat with a fractional rig ?
Apart from the other things mentioned it keeps the foresail to a more
manageable size (similar arguement to cutter over sloop rig)
|
| 1967.3 | Fractional | SALEM::GILMAN | | Thu Nov 19 1992 11:45 | 4 |
| Would someone give me a definition of a fractional rig? I don't
understand the term.
Tx. Jeff
|
| 1967.4 | I'll give fractional a shot | MARX::CARTER | | Thu Nov 19 1992 12:14 | 11 |
| Jeff,
On a masthead rig, the headstay, on which the jib is hoisted, goes to
the top of the mast.
On a fractional rig, the headstay goes a fraction of the way up the
mast. It's not uncommon to hear some body describe a boat as (for
instance) a 7/8 fractional rig. That, I assume, means the headstay is
attached to the mast 7/8 of the way up from the bottom.
djc
|
| 1967.5 | Fract | SALEM::GILMAN | | Thu Nov 19 1992 14:33 | 4 |
| Ok, thanks I understand. It does make sense that a 7/8ths means that
the headstay attaches 7/8ths of the way up the mast.
Jeff
|
| 1967.6 | | CFSCTC::SBOATS::GERMAIN | He's the Iceman - a Hunter! | Fri Nov 20 1992 08:13 | 7 |
| Got a frac rig on my Herreshoff S-boat. We go pretty fast, but the
main feature (to me - strictly personal) is that the jib lies within
the foretriangle and I can tack without touching the single jib sheet.
Makes life simple for singlehanding.
Gregg
|
| 1967.7 | | ESSB::PREISLER | JOHN PREISLER | Mon Nov 30 1992 07:46 | 17 |
| Folks,
From someone who races fractional rigs against both fractional and masthead rigs
in the (wild) west of Ireland, one of the main benefits of the frac over the
full rig is that, when the wind gets up,
- it is easier to control the boat by spilling wind from the main (as it
is the most powerful sail) than the headsail,
- the main gets reefed first in a frac rig while generally the headsail
gets changed on a masthead rig. This makes it quicker and far less
dangerous for reefing. It also keeps the weight of crew off the bow.
This allied to what was said earlier makes for a better racing combination.
You do loose out on the size of the spinnaker though - especially in light airs.
Hope this helps
J.P.
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| 1967.8 | y | OTOOA::MOWBRAY | This isn't a job its an Adventure | Mon Nov 30 1992 14:02 | 8 |
| re .7 The reason I asked the question inthe first place is that a
friend of mine just bought a Sigma 33 (fractional). Do you know the
boat (race against them ?) I would love to hear more about it as I have
begged a berth on the trip from Halifax (Nova Scotia Can.) to Holyrood
(newfoundland Can.). Even though I will be the Navigator, we won't be
able to make it to the French Islands of St. Pierre and Miquelon though
which is a pity as the wine, cheese etc. is a treat there .... unless
the Navigator makes a mistake !
|
| 1967.9 | | SAC::CSOONE::BARKER | @UCG,ex UBO,NEW,REO,RES,SBP,UCG & RYO | Tue Dec 01 1992 03:59 | 11 |
| The Sigma 33 is the most popular One-design yacht in the UK. Designed
by David Thomas in the early 80's, it is a comfortable and well thought
out cruiser-racer. Don't expect to set any records though. There are
literallly hundreds of these boats in the Solent area, and big racing
events like Cowes Week, Round the Island and the National Championship
regularly attract over 70 entries.
What else do you want to know ?
Chris
|
| 1967.10 | tell me anything | OTOOA::MOWBRAY | This isn't a job its an Adventure | Tue Dec 01 1992 07:29 | 6 |
| I suppose it is some idle conjecture on my part. On the other hand it
is nice to think about now that the snow is on the ground.
What are her sailing characteristics ?
Ratings PHRF (which we use here) etc. ?
|
| 1967.11 | 144 sec/mile | MILKWY::WAGNER | Scott | Tue Dec 01 1992 11:28 | 8 |
|
She rates 144 in New England, tho the only one I've seen is on my
tillerpilot box (Navico). From the photo, she looks a LOT like my
Beneteau 325, and rates very close as well.
I hope the cabin heater works, if you're leaving this week!!
Scott (high, dry & jealous)
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| 1967.12 | High and Dry too! | OTOOA::MOWBRAY | This isn't a job its an Adventure | Tue Dec 01 1992 15:49 | 8 |
| Hmmm .... guess I missed the June next year part of my trip !
All of the boats up here are out of the water until next may.
But don't despair, with the weather round here in June we'll need the
heater and PLENTY of long underwear. The coldest I've ever been in my
life was on that trip about 5 years ago. Got cold on the St. Pierre
Bank and Stayed cold for 4 days after! (Espar!)
|