Hey Dan I just mean for you to take a quick look at the actual flight numbers of full fuel, your weight etc as a reference to establish your baseline for testing and measuring where the CG moves as the weight gets added and moves, and the resulting stability. When flight training, even though we were the same crew getting on the plane each day, we kept in practice by adding the numbers up each time, just to make sure that we always stayed current with calculating weight and balance, and we were always aware of being in the envelope. You might even want to draw a graph/chart/picture of where you are and where it moves to. It is kinda interesting to see.
I am very glad about the stability. A large part of that will be the fact that it has a natural tendency to nose down, and adding the extra trim tab will probably take care of the adjustment needs. I would not encourage a remake of the horizontal stab for fear of either inducing instability or a reverse situation of a nose up tendency. Unless you find that it is WAY off! I found solo that I needed to add a little forward pressure, so I added that bungy cord and it made it fun to fly solo, almost hands off. However with passenger weight, it was once again, not enough and I had to use forward pressure to keep nose down, even with the help of the bungy cord. I will bet that you will find your stick centered or slight back pressure/trim with two on board. I have pushed my engine 1/2" extra forward to get just that kind of extra stability over what it was with the VW. I am also going to have 2 batteries up front, one as the required IFR backup electrical in order to power the electronics I will be using for IFR add on certification later. The series of batteries for the late model Acura Integras and Honda Civics are half the width of other car batteries and rated much higher than motorcycle and tractor batteries. Also my alternator is heavier, all adding to the weight I want to be forward to get exactly what you have. If I give up some speed, fine. But you and me will not be working our butts off keeping the plane in the same spot/altitude with that kind of stability. And that goes A LONG WAY! I have a manual tab giving down stick already and need more. Hey if you will, will you email me the pictures of your version trim tab, and motor? I can see them on your page, but want to be able to enlarge them for better viewing. I am going to use your idea to add trim to my bird this winter. I will use a manual one inside until then. I am first going to convert to electric belly board actuation. Colin Rainey Independent Loan Officer Branch 2375 Apex Mortgage Company 386.615.3388 Office 407.739.0834 Cell 407.557.3260 Fax brokerpi...@bellsouth.net <mailto:brokerpi...@bellsouth.net> -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Dan Heath Sent: Monday, August 28, 2006 6:04 PM To: kr...@mylist.net Subject: RE: KR> N64KR - Black Bird Colin, What do you mean by "double checking the numbers"? Matt Elder has an incidence checking meter. Never heard of such a thing, but I will fly down there soon and he will check that for me. I would be willing to bet that, that is what it is. I don't look forward to having to make that kind of correction, but it will give me the opportunity to put on Mark's super duper horiz stab. I'll bet it won't take more than a month or two, but getting it to cure during the winter could be a problem. Maybe I will save that for the heat of next summer, after Sun'n'fun. The plane is very Very solid feeling. There is NO twichyness in it at all, NONE. This is a very stable airplane. Too bad that Ken did not figure this out a long time ago and avoided that bad reputation. I am going to put a fixed trim tab on the other side of the elevator to offset some of that pressure and maybe the variable tab will do the rest, for now. Do you think that having no wheel pants could be causing some of the nose down attitude? See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2007 - KR Gathering There is a time for building and a time for FLYING and the time for Flying has begun. Daniel R. Heath - Lexington, SC -------Original Message------- From: Colin Rainey List-Post: krnet@list.krnet.org Date: 08/28/06 08:39:01 To: KRnet Subject: RE: KR> N64KR - Black Bird Dan said: One other item. This plane is nose heavy. I did not have enough trim to trim it out, only help ease the back pressure. Dan, I would double check my numbers for yesterday's flight. Jeff Scott is probably corrct and your W&B is right on, and you are one of the few KR's with a CG that is alittle forward with only one and will be right in the middle with two on board. That is great! It will keep you very stable and although might take a small amount of speed away, your attention to drag details should offset that. Even some of the twins I flew felt nose heavy at certain speeds, and needed alittle bit of trim. I would MUCH rather have nose down tendency than NOSE UP. MUCH safer! CONGRATS DAN!!!!! Guess you are coming to Florida before I get to NC huh?! Colin Rainey brokerpi...@bellsouth.net <mailto:brokerpi...@bellsouth.net> _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
