---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sat 02/16/08: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:34 AM - Yak n CJ Aircraft anniversaries and Oshkosh... (Drew) 2. 08:59 AM - Re: What happend to Brian Lloyd's OV project? (Brian Lloyd) 3. 06:04 PM - Re: N923YK (Craig Winkelmann, CFI) 4. 06:38 PM - Alternator vs Generator and Overvoltage (Craig Winkelmann, CFI) 5. 08:14 PM - Re: Re: N923YK (Jim) 6. 10:45 PM - Re: Alternator vs Generator and Overvoltage (Brian Lloyd) ________________________________ Message 1 _____________________________________ Time: 08:34:26 AM PST US From: Drew Subject: Yak-List: Yak n CJ Aircraft anniversaries and Oshkosh... Folks, I'm sitting here with my copy of a newsletter dated Winter 1993 Vol 1, No 1. and titled "The CJ-6/Yak-18 Driver" In that first edition, page 1, the editor Bud Harrell asked this question: "...Will there be a Yak association like the T-34 association? I cannot answer that question. For now, we may be too few, and too far flung..." He reffered to the CJ-6 as a Yak-18 in those days and had some 23 pilots respond to this proposal to organize, out of a distribution list of 47 owners. For many of you, the founding of the Yak Pilots Club and evolution to the RedStar Pilots Association, has been a positive addition to your interest in these aircraft and this great past time. The RPA (RedStar) is a unified all-aircraft aviators association, it was about the pilots flying, and not about one type specific aircraft or another - the name change proposal itself was done to cement that concept not long after a Yak 52 pilot called up before coming to a California fly-in we were forming in 2001 and said "This ain't one of those *$#@ CJ club get togethers they just refer to as 'Yak' is it?". No, this is RedStar...and we made it a goal to forever remove such an incorrect perception among aircraft owners of Eastern Block aircraft (and beyond, RPA membership is open to pilot-owners who simply commit to the goals of training and fun). I've heard that the Yak 52 is 30 years old this year? The CJ is 50 or maybe more. Whats really important, as is being pointed out by Condor [pres] to the volunteers and seen through the agressive refocus of Oshkosh 2008, as you will read in this quarters Red Alert, is the realization that the RPA is 15 years old - and this event is a National RedStar Celebration of the ENTIRE associations membership and it's collective accomplishments and evolution. RPA ops at Oshkosh may highlight the CJ and Yak anniversaries in specialty publications, mass formations and other venues, but this event is getting a lot of planning effort (and RPA treasury and sponsor money) to support the pilots and members equally, doesn't matter what you fly or drive. And yes Bud, the community did indeed grow their association...from 23 in 1993 to well over 450 today. Food for thought, Drew --------------------------------- Never miss a thing. Make Yahoo your homepage. ________________________________ Message 2 _____________________________________ Time: 08:59:48 AM PST US From: Brian Lloyd Subject: Re: Yak-List: What happend to Brian Lloyd's OV project? On Feb 15, 2008, at 8:37 PM, Elmar Hegenauer wrote: > What happend to Brian Lloyd's > Overvoltage Protection project > for the CJ? It is done. The module is available from Bob Nuckolls of the AeroElectric Connection. Tom Elliot has the prototoype installed in his CJ. Contact Bob at http://www.aeroelectric.com The one thing I didn't do is sit down and do a set of detailed instructions for installing it. I didn't have a CJ to work on and, frankly, it became something I just didn't want to spend any more time on as any CJ or Yak I own will lose its generator to be replaced by an alternator whose field circuit will be automatically disabled during an OV event. > > IMHO, overvoltage is still a serious > issue on those planes, especially > with all the latest and expensive > avionics installed. Yup. -- Brian Lloyd 3191 Western Drive brian HYPHEN 1927 AT lloyd DOT com Cameron Park, CA 95682 +1.916.367.2131 (voice) +1.270.912.0788 (fax) I fly because it releases my mind from the tyranny of petty things . . . Antoine de Saint-Exupry PGP key ID: 12095C52A32A1B6C PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C ________________________________ Message 3 _____________________________________ Time: 06:04:03 PM PST US Subject: Yak-List: Re: N923YK From: "Craig Winkelmann, CFI" Jim: Where is Kurt going to base his new pride and joy? Craig Read this topic online here: http://forums.matronics.com/viewtopic.php?p=164491#164491 ________________________________ Message 4 _____________________________________ Time: 06:38:49 PM PST US Subject: Yak-List: Alternator vs Generator and Overvoltage From: "Craig Winkelmann, CFI" Gang: Can Brian or someone enlighten me on this topic. From what I recall, both gen and alt systems can have an overvoltage situation. The external regulator is supposed to control this. From what I gather, the CJ/Yak electrical system does not provide protection for this? Please enlighten me! Craig Read this topic online here: http://forums.matronics.com/viewtopic.php?p=164497#164497 ________________________________ Message 5 _____________________________________ Time: 08:14:11 PM PST US From: "Jim" Subject: Re: Yak-List: Re: N923YK Winters,by Sacramento ----- Original Message ----- From: "Craig Winkelmann, CFI" Sent: Saturday, February 16, 2008 6:01 PM Subject: Yak-List: Re: N923YK > > > Jim: > > Where is Kurt going to base his new pride and joy? > > Craig > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=164491#164491 > > > ________________________________ Message 6 _____________________________________ Time: 10:45:11 PM PST US From: Brian Lloyd Subject: Re: Yak-List: Alternator vs Generator and Overvoltage On Feb 16, 2008, at 6:36 PM, Craig Winkelmann, CFI wrote: > > > > Gang: > > Can Brian or someone enlighten me on this topic. From what I > recall, both gen and alt systems can have an overvoltage situation. That is correct. > The external regulator is supposed to control this. No, not necessarily unless the regulator specifically has OV protection. Most standard regulators do not. Spam-can electrical systems typically have a separate OV protection relay that sits between the regulator and the field circuit of the alternator. If the voltage goes too high the OV relay disconnects the field circuit thus shutting off the alternator. > From what I gather, the CJ/Yak electrical system does not provide > protection for this? I believe that the Yak has an OV relay but the CJ does not. I got Bob Nuckolls to cook up an OV protection circuit for the CJ that will pop the field circuit breaker and turn on an OV warning light. Its installation is relatively simple. It must be wired to the main electrical bus to sense the voltage and it must be wired to the field circuit between the existing regulator and the generators field winding. If there is an OV event, it disconnects the field circuit thus protecting the rest of the electrical system. > Please enlighten me! Does this help? -- Brian Lloyd 3191 Western Drive brian HYPHEN 1927 AT lloyd DOT com Cameron Park, CA 95682 +1.916.367.2131 (voice) +1.270.912.0788 (fax) I fly because it releases my mind from the tyranny of petty things . . . Antoine de Saint-Exupry PGP key ID: 12095C52A32A1B6C PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C ------------------------------------------------------------------------------------- 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.