Re: KR> fixed trim tabs
Keep in mind that I am still a 'wanna be', but it seems to me that if one were to take some 1" X 3 or 4" boards of the appropriate length, placed top and bottom, and use a couple of wood working clamps over the tabs/ailerons, Mark Jones attachment method would allow you to bend the tabs to your heart's content without damaging anything. i.e., the boards would take the load from bending... aluminum is pretty soft; 0.010" to 0.030" thick. Much thicker might be a problem. JMHO Mark W N952MW -Original Message- From: KRnet [mailto:krnet-boun...@list.krnet.org] On Behalf Of Mark Langford via KRnet Sent: Monday, May 18, 2020 9:15 AM To: Mark Jones via KRnet Cc: Mark Langford Subject: Re: KR> fixed trim tabs Mark Jones wrote: >> I too had this style trim tab on my aileron. The way I mounted mine was with 3M double sided tape and I put over 500 hours flight time on it and it never loosened up. Mounting it this way is just another way to reduce a little drag. << I mounted mine with screws because bending the aluminum while mounted could damage the trailing edge of the control surface. I guess if you used .010" aluminum sheet that would probably work though, but then I'd worry about flutter (I'm not happy if I'm not worried about something). With screws I can remove it in half a minute, measure it, bend it on the brake, and reinstall without damaging anything.That's getting it dialed in to start with, but a prop change later can also require another adjustment. With N891JF, tiny drag contributors are not something I worry about, and I'm not sure how sturdy these trailing edges were constructed Mark Langford m...@n56ml.com http://www.n56ml.com ___ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org ___ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
Re: KR> fixed trim tabs
As a follow up to my method of mounting And adjusting my trim tab: The double sided 3M tape I used is their 444 tape. To adjust the angle of my trim tab, it could simply be removed by using dental floss under the edge of the tab and floss it right off the aileron. However, I didn’t remove mine to adjust it. I took two pieces of aluminum bar and clamped one over the taped section of the trim tab and one on top to secure the trailing edge. I then proceed to bend the tab by hand as needed. It may take a couple of flights to find the cruise sweet spot on the trim tab. This worked great for me but as Flesner always says. “Your results may vary”. Mark Jones Oldsmar, Fl N771MJ “WunderBird” www.flykr2s.com flyk...@gmail.com >> On May 18, 2020, at 10:15 AM, Mark Langford via KRnet >> wrote: > Mark Jones wrote: > > >> I too had this style trim tab on my aileron. The way I mounted mine was > >> with 3M double sided tape and I put over 500 hours flight time on it and > >> it never loosened up. Mounting it this way is just another way to reduce a > >> little drag. << > > I mounted mine with screws because bending the aluminum while mounted could > damage the trailing edge of the control surface. I guess if you used .010" > aluminum sheet that would probably work though, but then I'd worry about > flutter (I'm not happy if I'm not worried about something). With screws I can > remove it in half a minute, measure it, bend it on the brake, and reinstall > without damaging anything.That's getting it dialed in to start with, but > a prop change later can also require another adjustment. With N891JF, tiny > drag contributors are not something I worry about, and I'm not sure how > sturdy these trailing edges were constructed > > Mark Langford > m...@n56ml.com > http://www.n56ml.com > > > ___ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org ___ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
Re: KR> fixed trim tabs
Mark Jones wrote: >> I too had this style trim tab on my aileron. The way I mounted mine was with 3M double sided tape and I put over 500 hours flight time on it and it never loosened up. Mounting it this way is just another way to reduce a little drag. << I mounted mine with screws because bending the aluminum while mounted could damage the trailing edge of the control surface. I guess if you used .010" aluminum sheet that would probably work though, but then I'd worry about flutter (I'm not happy if I'm not worried about something). With screws I can remove it in half a minute, measure it, bend it on the brake, and reinstall without damaging anything.That's getting it dialed in to start with, but a prop change later can also require another adjustment. With N891JF, tiny drag contributors are not something I worry about, and I'm not sure how sturdy these trailing edges were constructed Mark Langford m...@n56ml.com http://www.n56ml.com ___ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
Re: KR> fixed trim tabs
Hi Guys. I too had this style trim tab on my aileron. The way I mounted mine was with 3M double sided tape and I put over 500 hours flight time on it and it never loosened up. Mounting it this way is just another way to reduce a little drag. Also mounted my Mylar aileron gap seals with this tape and they too never loosened up. Mark Jones Oldsmar, Fl N771MJ “WunderBird” www.flykr2s.com flyk...@gmail.com > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org ___ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
