Hello, When installing servos in a molded wing without pre-molded pockets you usually need to attach them to the inside of the top skin. Before you do this first apply some 8oz fiberglass or 6oz carbon patches 1/2 " larger than the access hole to the inside of the skin with laminating epoxy (West systems works) to cover the area where the servo will rest. With the lighter overall weight on the newer molded ships (like we all want) the inside skin is usually very light f/g cloth .75 to 1oz weight and can be damaged when the servo needs to be removed. Try and run a corner of the patch up the side of the spar. This patch also stiffens the wing skin quite a bit and makes for a firm installation. When I epoxy the servo in I usually sand the surface of the servo a bit and the area that I will bond to. I found that most epoxy will not stick to the servo case material. I usually use 30-minute epoxy and micro balloons and add just enough spooge to seat the servo in the wing with a LITTLE excess curling up around the edges. Do not force the servo tight against the surface and clamp in place because that will flatten the wing skin and stay that way. Gently float the servo in position and tape in place until the epoxy has set up. Less is best. Removing servos installed with epoxy; Gently twist the servo clockwise (If in the northern Hemisphere) with a pair of long nose pliers if you have the room. The servo will just pop out. If you can't get a good grip on the servo then use 1/4 music wire through the wing root and gently but firmly tap the corner of the servo to apply a twisting force and the servo will pop out. This is easiest with a 3-piece wing. When you replace the servo the epoxy micro spooge formed a perfect mold of the servo, so apply a VERY THIN layer of epoxy and replace the servo in the spooge bed. Your servo will be exactly in the same position as before. The trick is to twist the servo. Do not pull the servo out or you could bring the skin with it. This method has been used for years with great success. If you use quality servos the need for repair is minimal. Tom Copp COMPOSITE SPECIALTIES 949 645 7032 ph/fax http://www.f3x.com RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
