Another source of trim tab installation photos is http://www.n56ml.com/trimtab/index.html . Mine's in the elevator and works perfectly. If you built the horizontal stab per plans to be only 5/8" thick, I'm not sure if the MAC servo will fit inside either h/s or elevator. It'll be a tight fit, for sure. N891JF, however, has the servo located mid-fuselage with nyrod running back from there. It's pretty hoaky, I think, but lasted 25 years. When I bought it the nyrod had disintegrated and the housing allowed the servo to move without moving the tab...pretty ineffective, and likely a great way to introduce flutter. I flew it home with two #2 screws run between h/s and tab to keep them from moving. See enclosed photo. This had the benefit of giving me a good indication of how much and which direction I needed to add a permanent tab to, so in the event of a total trim tab departure of some sort, the plane would be neutral at cruise. For test purposes I'd just like the tab down solid and not worry about it. I rarely adjust the trim except for cruising somewhere anyway. I've since replaced the nyrod (available at R/C hobby stores), and it works OK, but is a little sloppy....
Mark Langford ML at N56ML.com website at http://www.N56ML.com -------------------------------------------------------- -------------- next part -------------- A non-text attachment was scrubbed... Name: trim_lock.jpg Type: image/jpeg Size: 37671 bytes Desc: not available URL: <http://list.krnet.org/mailman/private/krnet_list.krnet.org/attachments/20130324/e486efb8/attachment.jpg>
