<<We are very interested in what you did in installing the bilge keels and how they work out for you. We also have a round bilged boat... How did you attach these? Glued/epoxied? Where did you have this done? Do you have pictures? Cost? Did you make these or are they an "off the shelf" item? Hopefully you will post to the list when you do your trials!>> I built the bilge keels myself, during our regular bi-annual haulout, at Indiantown Marina, FL. I bought a sheet of 5/8" PVC foam at Glue Products in West Palm Beach, 3'x8', $80. After ripping into 1' widths, I epoxy laminated the three sheets together to make a plank 1'x8' and 1.875" thick. This plank I then clamped in place on the hull, using some short lengths of aluminum angle temporarily screwed to the hull. After scribing the hull's curvature on the plank, I removed the plank and cut the curve with a saber saw, then duplicated the curve to cut the plank into two identical curved pieces, each about 5.25" wide. The curvature on my boat was about 1.5" in the 8' length. The hardest part of the job was grinding off all the bottom paint and gelcoat in the area of the "wings", so that the epoxy has something strong to bond to. Then I used thickened epoxy to bond on the wing cores, using the aluminum angles and clamps to hold it all in position while the epoxy sets. After cutting a 45degree angle on the leading edge, and tapering the trailing edge to 1" thick, I used a router to round the edges to a 3/4" radius. Finally, I used epoxy and some leftover glass (bi-ax with mat and some 6 oz tape) to cover the foam and tab up onto the hull about 2-3". Sanding, filling, and bottom paint completed the job. I used about 1.2 gal of epoxy ($50) and about $30 worth of scrap glass. Total time in the project (not including fetching the materials) was about 24 hours. Sorry, I am not yet digital photo capable, but I'll be sure to give my estimate of the performance results after May 8 when we leave the dock here in Palm City, where we're housesitting. Before haulout, Pooh's speed at 1800rpm was 7.3 kts, and max RPM 2250. After haulout and wing addition, we make 7.6 kts at 1800, and max out at 2325 rpm. The increase, of course, is due to a cleaner prop and bottom, not the wings, but any speed penalty for the wing addition is clearly very small (0.1-0.2 kts). Mark Richter, Winnie the Pooh __________________________________________________ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com