I have in the plans to install a engine mount which is 3" longer. Also a belly board to help slow the plane down in the pattern. Also, a test pilot is helping me solve these problems.
----- Original Message ----- From: "John Martindale" <[email protected]> To: "KRnet" <[email protected]> Sent: Thursday, March 30, 2006 7:45 PM Subject: Re: KR> cg with Deihl wing skins > Hi Bill > > Most odd :-) > > Those figures seem similiar to mine and others. You should be able to keep > within 8 to 12 " aft of leading edge in most loadings. Although RR states > 16" as the rear limit, many have experienced danger back there. > > The airfoil should produce a nose down attitude as the stall breaks > because > the Centre of Lift moves rapidly backwards behind the CoG. As Ken said > this > powerful moment can occur in the KR even with the stick kept back. Prior > to > the stall in level flight the nose will seem really high because a large > Angle of Attack is needed to offset lack of airspeed and maintain > lift....guess you know all that though :-) > > Which way does the nose move if you give her a burst of power in that > crazy > attitude? Maybe a test pilot could help you out a bit. Maybe you could > hang > the engine out front a bit more?? Hard to tell when ya upside down on the > world in Australia. > > John > > > > ----- Original Message ----- > From: "countryhomeprint" <[email protected]> > To: <[email protected]>; "KRnet" <[email protected]> > Sent: Friday, March 31, 2006 9:51 AM > Subject: Re: KR> cg with Deihl wing skins > > >> Jack, I had 2 different cg calculations done by two different A & P's >> using >> two different datum points and the results came out within 1/4 inch of >> each >> other. These calculations came out to be approximately 1 inch from the >> front >> limit of the cg envelope. (9 inches from front edge of wing) >> Bill Page >> [email protected] >> >> ----- Original Message ----- >> From: "Jack Cooper" <[email protected]> >> To: "KRnet" <[email protected]> >> Sent: Thursday, March 30, 2006 11:22 AM >> Subject: RE: KR> cg with Deihl wing skins >> >> >>> Bill >>> >>> Have you had someone else review your W&B figures?? A double check of >>> the >>> figures with different eyes may be very helpfull. This is an important >>> issue and a review of the figures wouldn't hurt. >>> >>> Jack Cooper >>> >>> >>>> [Original Message] >>>> From: countryhomeprint <[email protected]> >>>> To: KRnet <[email protected]> >>>> Date: 3/29/2006 9:16:41 PM >>>> Subject: KR> cg with Deihl wing skins >>>> >>>> Recently the first flight was made in 880AB. As with most any >>> experimental aircraft a few problems occur. Question? Is the cg range >>> for >>> Dan Deihl wing skin wings the same as for the standard KR-2 wings? >>> N880AB's >>> cg falls within the limits for the standard KR-2, however my KR feels >>> tail >>> heavy. I am unable to establish a true stall due to the uncontrolled >>> pitching up of the wings prior to stall. It feels as if the horizontal >>> stab >>> and elevator are stalling prior to the wings. This happened during the >>> first stall approach and a stall approach will not happen again until >>> the >>> problem is solved. Has anyone experienced this? Anyone have a thought as >>> to >>> WHY. This could be a dangerous situation. >>>> >>>> Bill Page >>>> [email protected] >>>> _______________________________________ >>>> 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 > > > _______________________________________ > 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 >
