I don't fly a Corvair, but other people with torque problems usually offset the leading edge of the vertical stab to compensate. More aerodynamically efficient than a 'trim tab'.
Of course engine offset will do it to........as you model builders should know..... Back into the old foxhole..... Keep on keeping on, On 11/6/05, Joseph H Horton <[email protected]> wrote: > > Mark > You have it nailed. I was saying exactly that about needing a lot of > rudder and yes Mark did put on a fixed trim tab. Mine is in the works now > and will be installed today. Wind was calm this morning but the fog over > took us today. No flying today > Joe Horton, Coopersburg, Pa. > [email protected] > > > On Sun, 6 Nov 2005 07:09:34 -0600 "Mark Jones" <[email protected]> > writes: > > Mark, > > Are we talking the same thing here? Don't you have a huge trim tab > > permanently set on your rudder which will correct center your ball > > in > > flight? Maybe I misread what Joe was talking about but if you have > > no trim > > tab mounted to your rudder, which I do not, you must keep left > > rudder input > > to keep the ball straight. If you have a trim tab mounted to your > > rudder and > > have it adjusted properly, then of course you can fly with your feet > > off the > > pedals. Did I miss something here? > > > > Mark Jones (N886MJ) > > Wales, WI USA > > E-mail me at [email protected] > > Visit my KR-2S CorvAIRCRAFT web site at > > www.flykr2s.com<http://www.flykr2s.com> > > > > > > > > ----- Original Message ----- > > From: "Mark Langford" <[email protected]> > > To: "KRnet" <[email protected]> > > Sent: Saturday, November 05, 2005 10:08 PM > > Subject: Re: KR> Flight #4 > > > > > > > Mark Jones wrote: > > > > > > > Unless you have an offset built into your vertical stabilizer, > > you will > > > find > > > > that with the Corvair engine the torque is so great that quite a > > bit of > > > left > > > > rudder is required to keep the ball centered. > > > > > > Mine is only that way when climbing out. Once I get up some > > speed, mine's > > > like Larry's, just take my feet off and it'll straighten itself > > out. I DO > > > have a "heavy" left wing though, although I suspect that's due to > > 150 > > pounds > > > in the left seat, and none in the right. I plan to remedy that > > with a 5" > > > round aluminum tube fuel tank in the right wing, killing two birds > > with > > one > > > stone. > > > > > > I did another hour and a half this morning, playing with static > > ports and > > > fuel totalizer, and another four landings on short strips. I flew > > 2.5 > > hours > > > and did 22 landings at Fayetteville on Thursday, with the goal of > > perfecting > > > the power off landing from downwind. The static port tweak got > > the > > bottom > > > end of the airspeed indicator to be fairly accurate at the expense > > of the > > > upper end, but the VSI is still crazy. Need more investigation > > there, but > > > it makes me feel better that nobody else can figure it out either. > > Today I > > > added a backup electric fuel pump, and tomorrow I'll wire it to > > the backup > > > UPS battery mounted in the tail. Redundancy will be mine, and CG > > will > > move > > > aft a little. > > > > > > I talked to Kim McCutcheon (president of the Aircraft Engine > > Historical > > > Society and mechanical engineer A&P) today , and he commented that > > it > > takes > > > an engine out landing to start thinking like I do now...going > > everywhere > > at > > > 12,000'. Next weekend it's a 400 mile trip to Daytona Beach to > > Corvair > > > College #9. Lots to do before then...mainly wiping all the oil > > and > > exhaust > > > residue off the bottom for the first time in 35 hours. > > > > > > 73 hours on N56ML to date! I did manage my first high speed > > "missed > > > approach" at Hazel Green Thursday, for Jim Hill's benefit. He was > > setting > > > the timing on his KR at the time. When I landed at Moontown a few > > minutes > > > later, my phone was ringing. Jim said "You mustav been going at > > least > > > 200mph! Sweet sounding engine!". Yep, first time... > > > > > > Mark Langford, Huntsville, Alabama > > > see KR2S project N56ML at http://home.hiwaay.net/~langford > > > email to N56ML "at" hiwaay.net <http://hiwaay.net> > > > -------------------------------------------------------------- > > > > > > > > > _______________________________________ > > > Search the KRnet Archives at > > http://www.maddyhome.com/krsrch/index.jsp > > > to UNsubscribe from KRnet, send a message to > > [email protected] > > > 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 [email protected] > > 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 [email protected] > please see other KRnet info at http://www.krnet.org/info.html > -- Jerry Mahurin - aka - KRJerry Lugoff, SC 29078
