We drove four days to get to Lake George, including one stretch where we drove 27 hours straight through because all the "road houses" near the Nullabor were fully booked). Getting to the launch requires driving several miles on a dirt road and sand, and crossing a little stream. At the launch, you are greeted by a very special smell that makes you question why in hell you wanted to go here. To start sailing, you first have to walk through a stretch of mud. When you get off the board, more often than not you are in knee-deep mud that wants to keep you, or at least suck your booties off your feet. When you finally manage to get your feet onto the board, they are covered in mud and/or weed that is so thick that your feet won't fit into the foot straps. The same question pops up again and again: why???
But despite all this, there are dozens of windsurfers from all over Australia who come to Lake George every year. A picture from our last trip gives a clue why:
This year, though, the lower water level means there are very large stretches where the water is glassy, even in 30 knot gusts. I thought that the super-flat water, together with some strong wind, is all it takes to break the magic 40 knot barrier that separates wannabe speedsurfers from "real" speedsurfers, and got quite frustrated when that was not the case. I ranted about my frustration in my last post, and fortunately, the post was read by Boro, who decided to give me a bunch of tips on how to go faster. Boro has done more than 40 knots many times in the US at much less ideal locations, and went on to get a top speed above 50 knot at the speed channel in Luderitz.
Some of the things he suggested were similar to things I had heard many times before, and already tried to do, like going very deep downwind. But he made one suggestion that went against what I had heard from multiple sources before: to move the mast base far forward in the mast track. The common advice I had in my head was "mast track back for speed". On my borrowed Mistral 95 speed board, I had so far put the mast base in the middle of the track, and only moved it a couple of centimeters back and forward, without seeing a big difference.
Boro and I had a longer discussion about this (and his other tips) via Messenger, and he explained his rationale in detail. He summarized what it boiled down to a simple formula:
Power + Control = Speed
My two recent "fail" session, where many others went faster than 40 knots but I was stuck in the mid-30s, helped me really understand this. In the first session in Albany, I had plenty of control, but no power: I had rigged a 5.5 m sail, added a bit too much downhaul, and never released the outhaul to bag the sail out. I was perfectly in control in speed runs, but could not get the board to reach the speed I had gotten the day before, in several knots less wind.
In my second "fail" session here at Lake George, I had plenty of power with my 6.2 m sail, but I was constantly fighting for control. I was holding back the entire time, doing just 25 knots when I should have done more than 30 on beam reaches. So when I did a few deep downwind speed runs in gusts, I started out too slow to reach top speeds, and was still too freaked out.
Interestingly, with our slalom boards at home, I generally had the mast base all the way forward. We had enough sessions in Texas over the last few years that I knew that this was the position that gave me the best control, and the most speed. But compared to here, Corpus Christi is quite choppy, and I am using a very different board, so I never had even tried the mast base all the way to the front.
Fortunately, it got windy the same day that Boro and I had the enlightening speed discussion. The forecast had only predicted 18-20 knots, but averages were closer to 25, with some stronger gusts. I pinched my way up from the Cockies launch to the glassy water near 5 Mile, and then further upwind towards Packing Point to the start of the speed run. I had headphones on that were connected to a phone running GPSLogit and announced my speed every 2 seconds. On the very first speed run, I heard the magic "40" announced three times in a row, and started woohooing out of the top of my lungs. When I got of at the end of the run, there was a small disappointment, though: the ESP GPS loggers showed a 2 second top speed of only 39.96 and 39.97 - so close! But that was already more than a knot faster than my previous PB, I was still fresh, and the wind was supposed to increase.
On the second speed run, I only got 37 knots: I had jibed at the end of the upwind leg, and forgotten to release the outhaul for the speed run. So just having the outhaul pulled in for going upwind made about 3 knots difference!
On the third speed run, with the outhaul released, I got lucky. I was in glassy water in the middle of the speed run, hearing "38" announcements, when a nice gust hit. Thanks to the forward position of the mast foot, I was in control, and the board accelerated until I heard "41" on the headphones. I finally had broken 40 knots! I was so happy that I momentarily forgot I was still going fast and let my attention slip, so the board did a huge wheelie, with the nose pointing up at a 45 degree angle and only the fin in the water. The head phone was still announcing "41", so a crash might have hurt, but I was too happy to be scared. Fortunately, I got things back under control without crashing. When checking the GPS units, both showed a top speed of 41.4 knots - I had smashed the 40 knot barrier!
I stayed on the water for another hour or two to get some more runs to improve my 5x10 second result, and ended up with 38.5 knots - almost exactly the same speed as my previous 2 second best. What a great day! I also played around a bit with the mast foot position, and concluded that about 3 cm from the front of the track seemed to work better than all the way in front. Nina also set two PBs for 2 and 5x10 seconds that day, but was a tad disappointed that she was several knots slower than I had been. When we later checked what speeds the other sailors had posted, there were a total of 51 postings from Lake George on the GPSTC site. Only a small number of sailors had posted 40 knot speeds for the day, and Nina had beaten quite a few of the other speeds. My speed ended up within about one knot of the top speed for the day, and only four speedsurfers posted speeds faster than mine - quite an amazing result, considering that a lot of guys here have previously done 44 to 49 knot top speeds! But despite the lucky gust I got, which must have been at least 30 knots, it was a "lighter" wind day compared to what a lot of these guys are used to. I also had just one run with 2 second averages above 40 knots (although a few others were very close), so I must have gotten a lucky gust. So we'll have to modify Boro's formula:
Power + Control + Lucky Gust = Speed
Here are my GPS tracks for the day:
Besides moving the mast foot, a few other tips and lessons also helped getting faster. That includes using the adjustable outhaul to really bag out the sail on speed runs. But perhaps the next most useful thing for me was to use ear plugs to tune out the noise of the wind. In the past, I had used in-ear earphones that did that, but all of these "waterproof" earphone died of corrosion sooner or later. Now, I am using bone conduction earphones that have held up very well, but leave me exposed to wind noise. Several people, including Peter "waricle", said that ear plugs helped, so I tried them for this session, and they made a big difference. The "the wind is really loud so it must be crazy windy" factor fell away, and so did one reasons to "be careful" (read: slow). I am generally quite sensitive to noise, and very easily distracted by it, so maybe the earplugs worked better on me than they would for others - but whatever it is, I'll take it.
The tracks show that I made a bunch of mistakes. I had a wet jibe near the beginning, where it took me almost a minute to shake of the weeds and get started again. I also started going upwind again too early, thinking I had sailed long enough. Next time, I'll need to set up the GPS to track the hour! In the best 45 minutes of the run, my average speed was 26.5 knots. With my mistakes, the hour came out at 25.66 knots - a 0.6 knot improvement over my previous PB. Not bad for an easy day!
Yesterday, I was a bit tired, partly from the previous day's effort and partly from fighting a cold, so I decided to take it easy. It looked quite windy at the lake, but only a few 40s were to be had yesterday, with the top speed requiring a 7.0 m sail and 63 cm board. I used a 5.5 m, which had me comfortably powered. Since the sail was easy to jibe, and the speed strip was quite crowded, I decided to go for an hour. I was inspired by Kato, who has done a 29.2 hour the day before. Not that I can compare myself to him, he sails in a different league, but at least I could copy his approach. Here's what my tracks for the hour looked liked:
Compared to Kato's hour tracks, several things pop out. His average speeds were about 2 knots faster than mine, and more consistent. He also did fewer jibes, even though he sailed more than 3 miles further, since he got closer to the lake edges in many runs. But the biggest difference is the quality of his jibes. His jibes are more consistent, and his minimum speed is several knots higher. Even if we consider that he used a GT31 which records filtered data at 1 Hz while I used a u-blox based logger that records at 5 Hz with a lot less filtering, his minimum speeds were a couple of knots faster. So before trying another hour, I will definitely need to work on my jibes! Thanks to discussions with Mike (Decrepit), I already have a plan on what to do. I'll leave you with another 4 year old picture, jibing on Lake George:
