---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sat 03/02/19: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:27 AM - Re: Re: Aerobatics training in the CJ 6 (\) 2. 02:09 PM - Desiccant experiment (JON) 3. 02:28 PM - Re: Noise cancelling headsets , do you wear them in a CJ or Yak (jay-dub) 4. 03:28 PM - Re: Re: Noise cancelling headsets , do you wear them in a CJ or Yak (Dr. Herbert Coussons) ________________________________ Message 1 _____________________________________ Time: 11:27:43 AM PST US From: "\"" Subject: Re: Yak-List: Re: Aerobatics training in the CJ 6 I ended up up putting 33 lbs of lead in my CJs tail.=C2- I filled a canva s bag full of lead bird shot and put the bag in the very tail section.=C2 - The bag and bird shot takes the form of the compartment and is unmovabl e.=C2- I can inspect the compartment occasionally by simply vacuuming out the bird shot and removing the bag.=C2- Has worked well for 23+ years. =C2- When I put on the M-14p I added shot to the bag and melted lead into the tail skid.=C2- I believe the total ballast came to 50 something lbs. =C2- My airplane flies with zero trim with full fuel, both seats occupied and 50 lbs of bags. Jim "Pappy" Goolsby -----Original Message----- From: doug sapp Sent: Thu, Feb 28, 2019 8:22 pm Subject: Re: Yak-List: Re: Aerobatics training in the CJ 6 Marcus,Really???=C2- Can you send me a copy of your weight and balance. Doug On Thu, Feb 28, 2019 at 4:31 PM Marcus Bates wrote: Blitz........remove and pour the tail skid full of molten lead.=C2- You w ill have to repaint it.=C2- I removed a measured 500 lbs + of antique rad ios, excessive wiring, instruments, etc. =C2- Leaded skid was enough to g et CG in limits. Sent from my iPad On Feb 28, 2019, at 1:05 PM, Byron Fox wrote: To Mark=99s point, I trained briefly with Gennady Elfimov in the UK 1 5+ years ago in a Yak 52. When I asked him to demonstrate the plane =99s aerobatic capability, every control movement went from stop to stop an d my head bounced around the canopy like a pinball. Very, very aggressive i n true Russian form. =9CHelps to put arms on canopy rails,=9D he suggested. It didn=99t. Blitz Fox415-307-2405 On Feb 28, 2019, at 8:37 AM, Bitterlich, Mark G CIV NAVAIR, WD wrote: itterlich@navy.mil> Absolutely correct that nose heavy aircraft don't spin or snap as well as t hose with the CG aft. =C2-=C2-It was common practice in Russia to add a lead weight in the tail to bring the CG aft.=C2- Pretty far aft actually .=C2- This improved how the airplane snapped significantly.=C2- Of cour se they also pulled the wings off of early models pulling G's well above ma ximum.=C2- It has been my experience that Russian pilots are very serious about winning and personally I admire that about them.=C2- Sometimes sli ghtly crazy is a good thing. Mark -----Original Message----- From: owner-yak-list-server@matronics.com On Behalf Of A. Dennis Savarese Sent: Thursday, February 28, 2019 7:42 AM Subject: [Non-DoD Source] Re: Yak-List: Re: Aerobatics training in the CJ 6 When the old radio equipment is removed from the rear compartment, most CJ' s I have seen have between 25 and 50 lbs of lead/lead shot installed in the tail to bring it back into CG. Dennis On Wednesday, February 27, 2019, 11:29:08 PM EST, ed.kettler wrote: ed.kettler@gmail.com> > Hi Motoadve, Welcome to the wonderful world on Changs! Based on what you are saying about the plane's behavior, you may be nose he avy. Taking all of the vacuum tube avionics out from behind the second seat may have moved the CG well forward. Are you also running out of trim durin g approach? I have read where several pilots have installed lead in the tail to reinsta te the normal CG positions >From one of my RC instructors: "Nose heavy planes fly poorly. Tail heavy pl anes fly poorly ... once" Ed -------- Ed Kettler N53HM Read this topic online here: http://forums.matronics.com/viewtopic.php?p=487844#487844 http://www.matronics.com/Navigator?Yak-List http:====== http://www.matronics.com/Navigator?Yak-List========== =================;=C2-=C2-=C2-=C2 -=C2-=C2-=C2-- NEW MATRONICS LIST WIKI -http://www.matronics.com/co ntribution<================ ________________________________ Message 2 _____________________________________ Time: 02:09:41 PM PST US From: JON Subject: Yak-List: Desiccant experiment Here's the quasi-experiment I conducted on the desiccant in the air system on my Nanchang CJ-6 airplane. This picture shows two things, desiccant qua ntity and humidity level. The pink desiccant on the left has reached the e nd of its useful life as a drying agent, while the desiccant on the right i s new, deep blue and ready to absorb moisture. The next point is quantity.. .I use twice as much desiccant (left vs right) and half as many felt pucks (4 instead of 8] as most people. Here are the data: fresh desiccant was in stalled on 10 February and removed on 2 March to total 20 days. Total flig ht time was 5.9 hours flown between 14 - 27 February or over 4 days. Averag e high temp in Alabama for February 2019 was 64=C2=B0 and the average humid ity was 67%. So the analysis and conclusion is two fold, first in this env ironment, deep South high humidity, changing the desiccant about every 5 ho urs seems to be about optimal and second, there might be a need for an addi tional inline filter or maybe even better, installation of a high pressure air filter and water separator such as on a scuba system or semi truck air system. Has anyone installed an additional filter or water separator on their airpl ane? Results? Sent from Xfinity Connect Application ________________________________ Message 3 _____________________________________ Time: 02:28:49 PM PST US Subject: Yak-List: Re: Noise cancelling headsets , do you wear them in a CJ or Yak From: "jay-dub" I use CEP-USA in-ear plugs with custom ear molds inside an Alpha Eagle dome, although they are almost as effective in my HGU. I much prefer them to ANR in the CJ and Yak. -------- CJ and Yak-52 owner Read this topic online here: http://forums.matronics.com/viewtopic.php?p=487891#487891 ________________________________ Message 4 _____________________________________ Time: 03:28:02 PM PST US From: "Dr. Herbert Coussons" Subject: Re: Yak-List: Re: Noise cancelling headsets , do you wear them in a CJ or Yak I have chimed in on my affection for Lightspeed. And the inability to use ANR in the yak or on a breezy. Yes you fly on a breezy, not in it. I use a nice inexpensive Passive noise reduction on the breezy, but I also use a Gibson and Barnes helmet w CEP in the yak. This works great. Sent from DrC@wscare.com on the iPhone. Please excuse spelling and autocorrect. Siri makes mistakes :). > On Mar 2, 2019, at 4:46 PM, jay-dub wrote: > > > I use CEP-USA in-ear plugs with custom ear molds inside an Alpha Eagle dome, although they are almost as effective in my HGU. I much prefer them to ANR in the CJ and Yak. > > -------- > CJ and Yak-52 owner > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=487891#487891 > > > > > > > > > ------------------------------------------------------------------------------------- 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.