quote:
Originally posted by drjukka
Matthew,
Just can't agree with you on the smaller sail issue.
Where I normally sail, I can hold a 5.7 in max about 31-32 knots - at Sandy I can hold the same size sail to a max of about 35-38 knots. I remember a day last Oct where I changed down from a 5.7 to 4.7 (gusty NW at SP 25 -40 knots) and my speeds went down - best runs were by far on the 5.7 and the 4.7 was only marginally easier to handle in the gusts and a dog in the lulls. From memory you were sailing that day and had similar speeds to me.
Could I go faster with a smaller sail - possibly - but when you bear off the wind to 120 deg+ and you feel that sag as the acceleration stops - you know you don't have enough sail up.
I know I can hold a 6.0 fully powered in 22-25 knots in flat water, but in the chop I get thrown about like I'm in a washing machine - speeds come down from 33 knots (in flat water) to about 27-29 knots when the chop gets up (same angle off the wind.
Looking at Mal, Chris or Tony's time they are all on waht would be considered relatively big sails given the wind strength, Daffy, is the closest to sailing 'underpowered' I have seen and in my experiencd he was carrying the same if not more sail than me and I was spotting him 15 - 18 kg at the time.
The last major speed session at SP that got the guys into the GPS top 10 as it exists now - the day was good, but not epic - it blew about 25-30 knots or so, gusting to 35 late in the day.
I sailed a 5.0 and was not overpowered at all for the day, but didn't do any good - just couldn't get into the groove.
Mal sailed a 5.0m and got 43 - he is about 20 kg heavier and a much better sailor. Daffy sailed a 4.4 and got 43 - he is about my weight but again a better sailor....and so on. The point being that it wasn't nuking 35+ with big sails, but 30's with average sized sails.
Now since this is SP, you can quite easily hold down .5-1m more sail area than choppy water since you wont "feel" overpowered, particularly since smaller boards require more sail size before being out of control. But the fastest guys are not trying to hold down any _extra_ area compared to the rest of the recreational sailors - they simply are sailing powered-up.
These are the particular points I have learned from Mal, Daffy, Tony and Chris:
- Technique is the most important as shown by guys doing 40 with wave gear; in particular the effective use leverage.
- Fin is probably the most important single piece of sailing gear.
- To go real fast you must bear away further than you would even consider to be realistic.
- Sail must be efficient, either by twist or size.
- Dont oversheet.
Mathew
PS. Even at SP I'm struggling to hold down a 5.0m in 35-38, but it is currently my smallest sail...