---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 07/14/22: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:26 AM - Re: Re: Low CHT (Richard Goode) 2. 03:16 AM - Re: CHT (Craig Payne) ________________________________ Message 1 _____________________________________ Time: 12:26:49 AM PST US From: "Richard Goode" Subject: RE: Yak-List: Re: Low CHT Hello Sean, Of course I had no idea who this might be, and "obsession" might be too strong a term. But remember that the Russians have been using these engines for 50 years without any kind of fuel flow measurement and don't seem to do too badly. Certainly I have seen pilots adjusting suction jet purely on the basis of fuel flow; ignoring cylinder temperatures and engine performance! Why I have no idea. But the fundamental problem is that this CHT measurement system is not precise and so dependent on a good contact with the cylinder head which so many people do not provide. And I know from long experience that suction jet sizes can make significant differences to CHT. Richard RICHARD GOODE AEROBATICS Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129 e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD LEADERS IN SOVIET & CHINESE RADIAL AIRCRAFT ENGINES In partnership with Aerometal Kft, Hungary. -----Original Message----- From: owner-yak-list-server@matronics.com On Behalf Of Ttail Sent: 13 July 2022 23:59 Subject: Yak-List: Re: Low CHT " I feel too many people have expensive electronic fuel flow measurements and then become obsessed by them. Engine performance and cylinder temperature are, to my mind, the only important factors! '[i] The reduction in FF was an observation not an "obsession". Its also kind of nice to have a second independent fuel qty system. The reason the jet was changed in the first place was consistently low CHT (on all cylinders). After the change CHT is far more manageable.[/i] -------- Sean Trestrail ttail[at]internode.on.net Read this topic online here: http://forums.matronics.com/viewtopic.php?p=507469#507469 ________________________________ Message 2 _____________________________________ Time: 03:16:32 AM PST US From: Craig Payne Subject: Yak-List: Re: CHT For non-sukhoi drivers, as in Yaks and CJ's with M-14's, there are two levers located on the left cabin wall... they do Not need to be placed fully towards the firewall=F0=9F=98=82. My experience taught me to operate at one of the published power settings so I could check for consistent temps/pressures flight to flight. Gills and oil cooler positions seemed to favor a "sweet" spot that yielded the same readings. Craig Payne Virus-free. www.avg.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> ------------------------------------------------------------------------------------- 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.