An F-41 Sailing In Australia
Scott Meyer's F-41 ENDLESS SUMMER achieved 21 knots on its first sail! Conditions were mostly light winds, but it still managed over 4 knots in 5 knots of wind, with just jib and main, and tacked very easily. The 21 knot burst happened on the front of a wave while heading back in to harbor, main only, with a wind gust of around 16 knots.
Motoring speed was 11 knots in smooth water with two 27HP Yanmars at 3000 RPM, and 9 to 10 knots at sea. It appeared the props may be a little oversize and a change here should further improve motoring speed. Overall some excellent results for a cruising cat, owner and crew being very happy.
Sailing Report: August 4, 2002 by Ian Farrier
I was able to go for a sail on Scott Meyer's F-41 Endless Summer today and was delighted with how it performed.
Conditions were only light, with 5 to 10 knots of wind at most, but it still achieved 7 to 8 knots of boat speed with just main and jib on a reach. Going to weather it consistently achieved 5 to 6 knots, in only 7 to 8 knots of wind, or almost as good as a trimaran which is the benchmark in such conditions. Still quite a bit of tuning to do yet, and I think it will be able to get very close to wind speed once fully sorted.
But better still, its tacking ability was astounding. Tacking was just effortless, with no need to backwind jib. It tacked so well I decided to try the 'continuous 360 degree turns in the one spot' trick, something all my trimaran designs can do, but something I did not believe any cruising catamaran could achieve.
Well I was wrong, the F-41 can do this too. One just puts the helm hard over while going to weather, keeping it there and touching nothing. A highly maneuverable boat can then do continuous 360 degree turns in the same spot, one after another, and this is what the F-41 did. I was amazed. It should however be noted that Endless Summer has daggerboards, and I doubt if such 360 degree turns can be achieved with the optional minikeels, though tacking will remain easy.
Sailing Report: August 9, 2002 by Ian Farrier
Have now completed another two days of sailing on the F-41, the first day in less than 5 knots, where the F-41's tacking ability continued to amaze. This is mainly due to the deep daggerboards and rudders. Endless Summer has the underslung rudder options, which are relatively deep, but the transom hung daggerboard rudders are even deeper, so the tacking ability of such an equipped boat will be even better.
The spinnaker was flown on the first day and Endless Summer achieved 8 knots of boat speed in 4 knots of apparent wind. Photos can be seen via the 'More Sailing Photos' link below. Instrument calibration was also checked by the B & G representative prior to sailing.
The second day of sailing saw more wind and the F-41 was able to reach 11 knots on the wind in 10 to 12 knots true, while creating 18 -20 knots apparent. Sheets were eased slightly, and we were going for speed rather than trying to point high,
9 -11 knots to windward in 10 -12 knots true
the apparent wind angle being 22°. We had a leisurely lunch while on auto-pilot, and speed stayed around 9 to 11 knots throughout.
Jib foot needs a little work to point really high, while also maintaining good speed, but from what I have seen the F-41 will be able to point as high as my trimaran designs, which are always faster to windward than the equivalent size monohulls. The extra windage of the big cruising cat however means its best VMG to windward will probably be achieved with a slightly lower pointing angle, but should still be better to any equivalent monohull. Only racing will tell, as there is only so much that can be obtained from instruments. However, it is obvious that the F-41 will easily be able to exceed 12 knots to windward without breaking a sweat.
Overall Summary: August 12, 2002 by Ian Farrier
ENDLESS SUMMER was built over a 14 month period and is finished to a very high standard, while also being superbly and comprehensively fitted out. In general, it turned out exactly as planned, with only a few bugs requiring resolution, and plans have now been updated to eliminate these, and further refine.
Some advantages immediately apparent, besides the very good performance under both sail and power, included decks that are very easy to move around on, the flat side decks making it very easy to move forward, and put out fenders etc., while the twin helm positions were very comfortable, with great visibility. It is also obvious that with the way the F-41 performs, the F-44R is going to be a seriously fast boat.
Update, September, 2005:
ENDLESS SUMMER then sailed up the Queensland coast, heading leisurely in the general direction of North America, and arrived in California in 2005.