---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sun 06/16/19: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:51 AM - Re: SS new Air tank weights CJ6A (Walter Lannon) 2. 12:47 PM - Re: SS new Air tank weights CJ6A (Jon Boede) 3. 01:08 PM - Fuel tank vent/siphon (greg.barnhard@gmail.com) ________________________________ Message 1 _____________________________________ Time: 11:51:41 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: SS new Air tank weights CJ6A Just to set the record straight the CJ6 air tanks are not manufactured from "cast" steel. They are forged from a relatively high tensile carbon steel probably in the order of AMS 4130 or 4340 and heat treated accordingly. Of course their primary enemy is moisture and corrosion. To mitigate the corrosion problem and match that strength with stainless steel requires a much greater wall thickness. Walt -----Original Message----- From: Ttail Sent: Saturday, June 15, 2019 11:55 PM Subject: Yak-List: SS new Air tank weights CJ6A Gooday All. I have just replaced my original pneumatic tanks with Doug's new SS Pneumatic tanks. The new tanks are significantly heavier here are the weights. Old Emerg Cast tank 1.3Kg New SS Emerg Tank 3.4Kg Old Cast Main Tank 6.0Kg New SS Main tank 13.2Kg So Basically both Old tanks weighed 7.3Kg New SS tanks weigh 16.6Kg A diff of 9.3Kg So significant W@B issue you need to solve. In my case 10Kg Lead Ballast and 1Kg elsewhere. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489675#489675 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 2 _____________________________________ Time: 12:47:03 PM PST US From: Jon Boede Subject: Re: Yak-List: SS new Air tank weights CJ6A In the CJ, heavier tail is better. I have yet to see one that couldnt stand a few more pounds well aft. Jon > On Jun 16, 2019, at 1:57 PM, Walter Lannon wrote: > > > Just to set the record straight the CJ6 air tanks are not manufactured from "cast" steel. They are forged from a relatively high tensile carbon steel probably in the order of AMS 4130 or 4340 and heat treated accordingly. Of course their primary enemy is moisture and corrosion. > > To mitigate the corrosion problem and match that strength with stainless steel requires a much greater wall thickness. > > Walt > > -----Original Message----- From: Ttail > Sent: Saturday, June 15, 2019 11:55 PM > To: yak-list@matronics.com > Subject: Yak-List: SS new Air tank weights CJ6A > > > Gooday All. I have just replaced my original pneumatic tanks with Doug's new SS Pneumatic tanks. The new tanks are significantly heavier here are the weights. > > Old Emerg Cast tank 1.3Kg > New SS Emerg Tank 3.4Kg > > Old Cast Main Tank 6.0Kg > New SS Main tank 13.2Kg > > So Basically both Old tanks weighed 7.3Kg > New SS tanks weigh 16.6Kg > A diff of 9.3Kg > > So significant W@B issue you need to solve. In my case 10Kg Lead Ballast and 1Kg elsewhere. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=489675#489675 > > > > > > > > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > > > ________________________________ Message 3 _____________________________________ Time: 01:08:11 PM PST US Subject: Yak-List: Fuel tank vent/siphon From: "greg.barnhard@gmail.com" Hello all, I seem to have an issue with excessive fuel tank venting on my 52W (two main tanks and two aux tanks). Ive had over five gallons drain out of the central vent just forward of the collector tank on the belly. I know the one option is to not put so much fuel in the airplane. However, when I want to go somewhere where I need full fuel thats inconvenient. It appears that vent line comes off a tee fitting just under the pilot seat. My question is, if I make the loop in the vent line significant higher that should stop the excessive venting? Anyone else have this issue? Thanks in advance. Greg Read this topic online here: http://forums.matronics.com/viewtopic.php?p=489678#489678 ------------------------------------------------------------------------------------- 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.