http://tech.groups.yahoo.com/group/small-wind-home/ Home Energy Systems Discussion Sat, 21 Nov 2009 07:30:09 GMT BrianM http://tech.groups.yahoo.com/group/small-wind-home/message/27228 http://tech.groups.yahoo.com/group/small-wind-home/message/27228 Fiberglass and epoxy will be transparent. The dome over the antenna is made probably of fiberglass. Graphite might be somewhat absorbant but unless the blade Fri, 20 Nov 2009 18:14:24 GMT Frank Leslie http://tech.groups.yahoo.com/group/small-wind-home/message/27227 http://tech.groups.yahoo.com/group/small-wind-home/message/27227 An important aspect is what material the blade is made of and what is its radar reflectively. That's obvious for metal blades, but not so clear for the current Thu, 19 Nov 2009 22:54:06 GMT Neil Dennis http://tech.groups.yahoo.com/group/small-wind-home/message/27226 http://tech.groups.yahoo.com/group/small-wind-home/message/27226 If the prop is so it could be turning in front of the radar antenna wouldn't the signal be broken up by the rotor disk ? wombat Thu, 19 Nov 2009 20:03:48 GMT dael http://tech.groups.yahoo.com/group/small-wind-home/message/27225 http://tech.groups.yahoo.com/group/small-wind-home/message/27225 Radar is rather high frequency so there should not be any problem. Thu, 19 Nov 2009 16:58:48 GMT JP http://tech.groups.yahoo.com/group/small-wind-home/message/27224 http://tech.groups.yahoo.com/group/small-wind-home/message/27224 I know nothing about radar, but I'd guess there would be vibration from the wind gen which might not be good for the radar??? ... JP [Non-text portions of this Wed, 18 Nov 2009 21:40:35 GMT gacgacit http://tech.groups.yahoo.com/group/small-wind-home/message/27223 http://tech.groups.yahoo.com/group/small-wind-home/message/27223 Hi, I HAVE A SAILING BOAT WITH A RADAR ALREADY MOUNTED ON A THICK AND SOLID MAST ON TOP OF WHICH I WOULD LIKE TO USE TO ADD A WIND GENERATOR. MY CONCERN IS TO Tue, 17 Nov 2009 19:01:18 GMT petronius31 http://tech.groups.yahoo.com/group/small-wind-home/message/27222 http://tech.groups.yahoo.com/group/small-wind-home/message/27222 Can someone recommend a good system that will be rated at roughly 15kW? Information I have at the moment is this: 150ft tower 3Tier predicts - 4.73 - 6.2 m/s Mon, 16 Nov 2009 21:35:46 GMT dougselsam http://tech.groups.yahoo.com/group/small-wind-home/message/27221 http://tech.groups.yahoo.com/group/small-wind-home/message/27221 What you'll generally find inside any 3-phase automotive-style alternator is a sealed ball bearing on the front end and a needle roller-type bearing on the Sun, 15 Nov 2009 19:29:15 GMT dougselsam http://tech.groups.yahoo.com/group/small-wind-home/message/27220 http://tech.groups.yahoo.com/group/small-wind-home/message/27220 I start with a piece of lumber. Drill a 1/4" hole through the center. Balance on a Phillips screwdriver - one end will fall. Remove wood from each end, Sun, 15 Nov 2009 19:28:50 GMT Leslie Moniot http://tech.groups.yahoo.com/group/small-wind-home/message/27219 http://tech.groups.yahoo.com/group/small-wind-home/message/27219 Sorry for the mass email. I have real problem and very little time to fix it. I am the owner of a 21 acre ranch, completely off-grid, up in the Tehachapi, CA Sun, 15 Nov 2009 03:35:27 GMT integenerw http://tech.groups.yahoo.com/group/small-wind-home/message/27218 http://tech.groups.yahoo.com/group/small-wind-home/message/27218 Our yardstick rotor was balanced with one tenth of an ounce due to its vibration at 1700 rpms. This equates to an eight pound weight since the force is Fri, 13 Nov 2009 20:44:54 GMT Neil Dennis http://tech.groups.yahoo.com/group/small-wind-home/message/27217 http://tech.groups.yahoo.com/group/small-wind-home/message/27217 Our local paper just had an article about the "windtamer" turbine, looked a bit on the net, doesn't sound believable. Just wondering if there are any Fri, 13 Nov 2009 20:42:56 GMT jon powers http://tech.groups.yahoo.com/group/small-wind-home/message/27216 http://tech.groups.yahoo.com/group/small-wind-home/message/27216 ... This is a my observation also. We balance scores of 7.5 meter long blade sets (50 foot rotor give or take) by weighing the tip end and the root end at the Fri, 13 Nov 2009 18:38:48 GMT BrianM http://tech.groups.yahoo.com/group/small-wind-home/message/27215 http://tech.groups.yahoo.com/group/small-wind-home/message/27215 When I was taught many years ago how to do lawn mower repair, the guy had a magnetic precision ball bearing balancer for the blades and insisted that they be Fri, 13 Nov 2009 18:21:32 GMT Orville Lynner http://tech.groups.yahoo.com/group/small-wind-home/message/27214 http://tech.groups.yahoo.com/group/small-wind-home/message/27214 Blade Balancing Method For good results in balancing the blades of a turbine that has removable blades. Set up a lever arm system so that the blade can be