---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sun 09/29/19: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:38 PM - CJ6 Heading Adjustments (Ttail) 2. 03:43 PM - Re: CJ6 Heading Adjustments (Greg Wrobel) 3. 05:01 PM - Re: CJ6 Heading Adjustments (Walter Lannon) 4. 05:51 PM - Stock Nanchang Prop (JON) 5. 06:40 PM - Re: CJ6 Heading Adjustments (Ttail) ________________________________ Message 1 _____________________________________ Time: 01:38:17 PM PST US Subject: Yak-List: CJ6 Heading Adjustments From: "Ttail" Seeking info on how to accurately set up the Heading sensor/Flux valve in the CJ6. After turning on the Gyros then syncing the heading the resultant displayed heading is close to that displayed on the mag compass. If I then line up precisely on Rwy hdg (and re synch) I have around a 7-9 degree heading error. Can this be "biased' out ? If so whats the process How and on what ? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=491535#491535 ________________________________ Message 2 _____________________________________ Time: 03:43:42 PM PST US From: Greg Wrobel Subject: Re: Yak-List: CJ6 Heading Adjustments I have the same question. My CJ RMI had been spot on for 6 years. All of a suddenly it is 180 degrees out on most flights and on rare occasions (very rare ) it will be accurate. More wrong that right. Yes I know, who uses the RMI?? Well, not much but I like EVERYTHING working in my airplanes! A working airplane us a happy airplane. Clouddog On Sun, Sep 29, 2019, 15:42 Ttail wrote: > > Seeking info on how to accurately set up the Heading sensor/Flux valve in > the CJ6. > > After turning on the Gyros then syncing the heading the resultant > displayed heading is close to that displayed on the mag compass. If I then > line up precisely on Rwy hdg (and re synch) I have around a 7-9 degree > heading error. Can this be "biased' out ? If so whats the process How and > on what ? > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=491535#491535 > > ________________________________ Message 3 _____________________________________ Time: 05:01:31 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: CJ6 Heading Adjustments When was the last time the your runway heading was re-identified? I believe this is required every ten years for licensed airports but doubt it is done for my small town runway. And perhaps yours? I actually laid out a compass rose for ours about 24 years ago which of course by now is currently useless. In any case whether the runway headings are currently correct or not is kind of a moot point at this time. They will be wrong next year! The North Pole (that has lived in Canada for some centuries) has decided to move to Russia (actually Siberia!). It is on the way at breakneck speed (in historical terms) and nobody knows why! Some scientists are suggesting changes to the flow of liquid iron some hundreds of miles below our feet. I believe you could find a more intelligent discussion of this phenomena at NOAA or National Geographic or?. If you decide to make adjustments to your heading indication it is a relatively simple process (for a qualified A&P). The primary unit, whether it is referred to as a flux gate, or whatever, is in fact a master compass that is adjusted in exactly the same manner as any other aircraft magnetic compass. In early CJ's it is located inside the LH wing close to the tip. In later models in the aft fuselage RH side just fwd. of the horiz. stab. Cheers; Walt -----Original Message----- From: Ttail Sent: Sunday, September 29, 2019 1:37 PM Subject: Yak-List: CJ6 Heading Adjustments Seeking info on how to accurately set up the Heading sensor/Flux valve in the CJ6. After turning on the Gyros then syncing the heading the resultant displayed heading is close to that displayed on the mag compass. If I then line up precisely on Rwy hdg (and re synch) I have around a 7-9 degree heading error. Can this be "biased' out ? If so whats the process How and on what ? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=491535#491535 -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 4 _____________________________________ Time: 05:51:07 PM PST US From: JON Subject: Yak-List: Stock Nanchang Prop Looking for a new or used prop for a stock CJ-6. Pass the word that is like two. Jon Blake saber369@comcast.net Sent from Xfinity Connect Application ________________________________ Message 5 _____________________________________ Time: 06:40:43 PM PST US Subject: Yak-List: Re: CJ6 Heading Adjustments From: "Ttail" The True heading hasent changed :) so applying the latest Mag var should result in an acceptable mag heading. In my part of the world the variation drift is pretty sedate. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=491539#491539 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.